EPCs are no longer just a box-ticking exercise for landlords in England. In 2026, the arrival of Awaab’s Law has created a direct and urgent link between a property’s energy performance and a landlord’s legal obligations. If your rental property has a low EPC rating, it is significantly more likely to have the damp, mould, and condensation problems that Awaab’s Law now compels you to fix within strict legal timeframes. This article explains the law, the connection to EPCs, and what landlords need to do right now.

What Is Awaab’s Law?

Awaab’s Law is named after Awaab Ishak, a two-year-old boy who died in 2020 as a direct result of prolonged exposure to mould in a social housing flat in Rochdale. The coroner’s inquest found that the landlord had failed to act on repeated complaints about damp and mould over several years.

In response, the government introduced Awaab’s Law as part of the Social Housing (Regulation) Act 2023. The law requires social housing landlords to investigate and fix damp and mould within legally defined timeframes. Furthermore, the government has signalled its intention to extend similar obligations to the private rented sector.

For social housing providers, Awaab’s Law came into force in 2024. For private landlords, the direction of travel is clear. As a result, all landlords should treat compliance as an immediate priority rather than a future concern.

For the full government guidance on Awaab’s Law and its implementation, see here.

The Direct Connection Between EPCs and Awaab’s Law

This is where EPCs become critical. Low-rated properties are disproportionately likely to suffer from the exact problems Awaab’s Law targets.

Here is why. A property with a low EPC rating typically has poor insulation, inadequate heating, and insufficient ventilation. These three factors together create the conditions in which condensation forms, moisture accumulates, and mould grows. In contrast, a well-insulated property with an efficient heating system maintains more consistent internal temperatures and manages moisture more effectively. The EPC rating check result contains more useful information than the headline band.

Therefore, improving your EPCs rating is not just a regulatory compliance exercise. It is a direct intervention against the conditions that trigger Awaab’s Law enforcement.

Research from the English Housing Survey consistently shows that properties rated F and G have significantly higher rates of damp and mould than those rated C and above. Furthermore, properties rated D and E sit in an uncomfortable middle ground: they may not yet show visible mould, but the underlying conditions can deteriorate quickly in cold or wet weather.

What Awaab’s Law Requires Landlords to Do

Under Awaab’s Law as currently applied to social housing, landlords must investigate reports of damp and mould within 14 days. They must then provide a written summary of findings. If the problem poses a significant risk to health, they must begin repair works within a further seven days.

Emergency hazards must be addressed within 24 hours.

These timeframes are tight. In addition, the burden of proof sits with the landlord to demonstrate they have acted promptly and effectively. Failure to comply exposes landlords to enforcement action, compensation claims, and reputational damage.

For private landlords, the existing Housing Health and Safety Rating System (HHSRS) already allows local authorities to take enforcement action against damp and mould hazards. Awaab’s Law tightens this framework and signals a harder regulatory environment ahead.

How EPCs Help Landlords Get Ahead of Compliance

Improving your EPCs rating before problems arise is far cheaper than responding to enforcement action after they do. Here is how better energy performance reduces Awaab’s Law risk in practice.

Wall insulation reduces cold surfaces. Cold internal wall surfaces are where condensation forms first. Adding wall insulation raises the surface temperature of walls, which reduces condensation and the mould growth that follows.

Loft insulation reduces heat loss. A warm, consistently heated property manages moisture better than a cold one. Loft insulation is one of the most cost-effective ways to improve EPCs ratings and maintain internal temperatures.

Improved ventilation addresses moisture at source. Many low-rated properties lack adequate ventilation. Mechanical ventilation with heat recovery (MVHR) or even simple trickle vents can reduce indoor moisture levels significantly.

Each of these improvements contributes to a higher EPCs rating and directly reduces the conditions that create damp and mould liability.

What EPCs Rating Do You Need?

The current minimum EPCs requirement for private rented properties in England is E. However, the government has proposed raising this to C for new tenancies by 2028 and for all tenancies by 2030.

Properties rated F or G cannot legally be let without a valid exemption. Properties rated D or E face increasing scrutiny as the regulatory environment tightens. As a result, landlords who act now to improve their EPCs rating are investing in compliance rather than chasing it.

For a comprehensive overview of what EPCs cover and how ratings are calculated, see our full guide to EPC certificate 

Grants That Can Help Landlords Improve EPCs Ratings

The good news is that improving a property’s EPCs rating does not always require full self-funding. ECO4 and the Warm Homes Plan both fund insulation and heating upgrades for eligible properties. Eligibility depends on the tenant’s benefit status and the property’s current EPC rating.

If your tenants receive Universal Credit, Pension Credit, or other qualifying benefits, your property may qualify for fully funded wall insulation, loft insulation, or heating upgrades. These are precisely the measures that improve EPCs ratings and reduce Awaab’s Law risk simultaneously.

For a full breakdown of what funding is available, see our sister site’s guide to wall insulation grants.

The Landlord Risk of Waiting

The convergence of EPCs minimum standards, Awaab’s Law, and the Warm Homes Plan creates a clear message for landlords in 2026: the regulatory environment is tightening on multiple fronts at once. Properties with poor energy performance face higher damp and mould risk, stricter enforcement timelines, and shrinking grant windows.

In contrast, landlords who improve their EPCs ratings now reduce their legal exposure, access available grant funding, and future-proof their portfolio against incoming regulation. The cost of acting is manageable. The cost of not acting is growing.

Check Your EPCs Rating and Compliance Risk Today

Whether you need a new EPCs assessment, want to understand your compliance obligations under Awaab’s Law, or are looking for the most cost-effective route to a higher rating, contact us today. We arrange qualified assessors across England with fast turnaround and same-day lodging on the official register.

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If you let a property in the UK, you must have a valid EPC certificate for renting before you can legally market it to tenants. This requirement applies to virtually all domestic rental properties in England, Wales, Scotland, and Northern Ireland. Ignoring it carries significant financial penalties.

In 2026, the rules are more important than ever. Minimum standards are under review. Deadlines are approaching. And tenants are increasingly aware of energy efficiency when choosing where to live.

This guide covers everything landlords need to know.

What Is an EPC Certificate for Renting?

An EPC, or Energy Performance Certificate, rates a property from A to G based on its energy efficiency. A is the most efficient. G is the least. The certificate must be made available to prospective tenants free of charge before they commit to a tenancy.

The EPC also includes a list of recommended improvements and a projected rating if those improvements are carried out. Tenants can use this information when deciding whether the property suits their budget and needs.

Is an EPC Certificate a Legal Requirement for Renting?

Yes. Under the Energy Performance of Buildings Regulations 2012, landlords must have a valid EPC in place before marketing a rental property. The certificate must be provided to prospective tenants at the earliest opportunity and must be included in any online listing.

Failure to provide a valid EPC can result in a fine of up to £5,000 per property. Local authorities are responsible for enforcement and can act on complaints from tenants or inspections.

What Is the Minimum EPC Rating for Renting in England and Wales?

Under the Minimum Energy Efficiency Standards regulations, landlords in England and Wales must ensure their rental properties have a minimum EPC rating of E. Properties rated F or G cannot be legally let without a registered exemption.

Exemptions are available in limited circumstances, such as where the cost of improvement work exceeds a defined cap or where a listed building’s character would be materially affected. Landlords must register exemptions on the official PRS Exemptions Register. Details are available at gov.uk.

In Scotland, the equivalent legislation is the Energy Efficiency (Private Rented Property) (Scotland) Regulations. The requirements differ slightly, but the direction is the same.

What Is Changing for Landlords in 2026 and Beyond?

The government has proposed raising the minimum EPC rating for new tenancies to C by 2030. This means landlords with D or E rated properties need to begin planning improvement work now.

The timeline is tight. Properties that currently sit at E will need significant work to reach C in many cases. Contractors are already reporting growing demand for insulation work and energy efficiency upgrades, and lead times for some measures are increasing. Furthermore, grant funding under schemes like ECO4 may not remain available indefinitely.

For landlords with multiple properties, the financial case for acting early is strong. Spreading the cost of improvements across several tax years is far more manageable than a rushed programme of work close to the deadline.

How to Get an EPC Certificate for Renting

You need to instruct a domestic energy assessor accredited by an approved scheme. The assessor visits the property, carries out an inspection of the building fabric and services, and lodges the certificate on the national register.

Most assessments take between 45 minutes and one hour. Costs in 2026 typically range from £60 to £120 for a standard domestic property, though larger or more complex properties may cost more.

You can verify that an assessor is accredited by checking their details on the relevant accreditation scheme register, which is linked from the gov.uk website.

How Long Does an EPC Last?

An EPC is valid for ten years from the date of issue. If a property already has a valid certificate on the national register, you may not need a new one. You can check this at gov.uk using the property’s address or postcode.

However, if you have carried out significant improvement work since the last assessment, it is worth commissioning a new certificate. This ensures the rating reflects the current state of the property and may help attract tenants or justify a higher rent.

What Improvements Help Landlords Meet the Minimum EPC Rating?

Wall insulation is one of the most impactful improvements available. Properties with solid walls benefit significantly from external wall insulation, which improves the rating and reduces running costs for tenants. For more information, visit ecoinsulation.co.uk.

Loft insulation is often the most cost-effective first step. If the loft has less than 270mm of insulation, topping it up can move the rating up by a full band in some cases. The Energy Saving Trust provides guidance on insulation standards at energysavingtrust.org.uk.

Floor insulation is particularly relevant for older properties with suspended timber floors. Heat loss through uninsulated floors is often underestimated. For a full overview of floor insulation options, visit floorinsulation.co.uk.

Boiler replacement and the addition of modern heating controls also contribute to a better rating. A modern condensing boiler paired with a programmable thermostat and thermostatic radiator valves can move a property up one or two bands depending on the baseline.

Double glazing, where single glazing is still present, adds to the rating and reduces tenant complaints about cold draughts and condensation.

What Happens If You Let a Property Without a Valid EPC?

Local authorities can issue a penalty charge notice of up to £5,000 for each property marketed without a valid EPC. The fine applies per property, not per landlord, so portfolio landlords face significant exposure if they are non-compliant across multiple properties.

Beyond the financial risk, tenants can also use the absence of a valid EPC as grounds to challenge the tenancy. It is therefore in every landlord’s interest to treat EPC compliance as a non-negotiable part of property management.

How to Check If Your Property Needs a New EPC

Search the national EPC register at gov.uk using your property’s address. If a valid certificate appears and is less than ten years old, you are covered unless you have carried out significant works since it was issued. If the certificate has expired or no certificate exists, you must arrange a new assessment before marketing the property.

For a full overview of how the EPC rating system works in the UK, see our guide to EPC ratings in the UK.

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Getting your EPC certificate for renting sorted before marketing begins protects you legally and helps attract quality tenants. If you need help arranging an assessment or want advice on the most cost-effective improvements for your property, contact us today.

If you want to know how to get a better EPC rating, the good news is that several proven improvements can move your property up one or more bands. This guide covers the most effective steps UK homeowners can take in 2026, ranked by impact.

Why Your EPC Rating Matters

Your EPC rating affects how attractive your property is to buyers and tenants. It also determines whether you qualify for certain government grants. Furthermore, a higher rating means lower energy bills, which is a practical benefit for whoever lives in the property.

The rating runs from A to G. Most UK homes currently sit at D or E. Moving from E to D, or from D to C, can make a real difference to both energy costs and property value.

The Most Effective Ways to Get a Better EPC Rating

Loft Insulation

Loft insulation is one of the cheapest and most impactful improvements available. If your loft is uninsulated or has less than 270mm of insulation, topping it up can improve your rating by a full band in some cases. The Energy Saving Trust recommends 270mm of mineral wool as the standard target for UK homes. You can check current guidance at energysavingtrust.org.uk.

Wall Insulation

Wall insulation has a significant effect on your EPC rating because heat loss through walls accounts for a large proportion of a home’s energy demand. The type of insulation you need depends on your wall construction.

Cavity walls can be filled with insulation relatively quickly and at low cost. Solid walls require either external or internal insulation, which is a larger project but delivers a greater improvement. For homes with solid walls, external wall insulation is one of the most impactful upgrades available. You can explore that option further at ecoinsulation.co.uk.

Floor Insulation

Suspended timber floors lose a surprising amount of heat, particularly in older properties. Adding insulation beneath the floorboards can contribute to a rating improvement and noticeably reduce draughts at floor level. For more detail on floor insulation options, visit floorinsulation.co.uk.

Boiler and Heating Controls

Replacing an old boiler with a modern condensing boiler improves efficiency significantly. Adding a programmer, room thermostat, and thermostatic radiator valves also contributes to a better rating. The software that calculates EPC ratings takes heating system controls into account, so these upgrades register on the certificate.

Double or Triple Glazing

Replacing single glazed windows with double or triple glazing improves your rating and reduces heat loss. However, glazing upgrades tend to have a smaller impact on the rating than insulation or heating system changes. They are worth doing, but they should not be the first step if budget is limited.

Solar Panels

Solar photovoltaic panels can push a property’s rating toward B or even A. However, the upfront cost is significant. In 2026, most installations cost between £5,000 and £8,000 depending on system size. For many homeowners, insulation improvements deliver a better return per pound spent before moving on to renewable energy.

How to Prioritise Your Improvements

The most cost-effective approach is to address heat loss first before investing in renewable energy generation. In practice, this means tackling insulation before solar panels. The government’s guidance on energy efficiency support is available at gov.uk.

If you are unsure where to start, a new EPC assessment will include a list of recommended improvements and the projected rating you could achieve. This gives you a clear roadmap to work from.

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If you want to get a better EPC rating and are not sure which improvement to tackle first, contact us today. We work with homeowners across the UK and can help you understand your options quickly.

The EPC certificate London landlords rely on is about to matter more than ever. The government has signalled that minimum energy efficiency standards for rental properties will tighten, and London’s housing stock includes a disproportionately high share of older, energy-inefficient properties. This guide covers what the current rules require, what is changing, and what London landlords should do now to stay compliant and protect their rental income.

The Current Minimum EPC Rating for London Rentals

All privately rented properties in England, including London, must have a valid EPC certificate with a minimum rating of E before a tenancy can begin. This requirement has been in place since 2018 for new tenancies and since 2020 for all existing tenancies.

If your London rental property currently has an F or G rating, you cannot legally let it without first improving the rating or registering a valid exemption. The Minimum Energy Efficiency Standards (MEES) regulations enforce this, and local authorities can issue civil penalties of up to £30,000 for non-compliance.

What Is Changing: The Move Toward EPC C

The government has proposed raising the minimum EPC rating for new tenancies to C by 2028 and for all tenancies by 2030. These dates have shifted several times, so landlords should check the current timeline with the government’s official guidance. However, the direction of travel is clear. In practice, most London landlords who own older properties will need to carry out improvement work to comply.

London presents a particular challenge in this regard. A large proportion of London rental properties are Victorian and Edwardian conversions with solid walls, single-glazed windows, and older heating systems. These properties typically sit at EPC D or below without intervention.

How to Improve Your EPC Certificate London Rating

The fastest ways to improve an EPC rating in a London rental property are loft insulation, wall insulation, and boiler replacement. Of these, wall insulation delivers the largest single improvement for solid-walled properties.

For properties with cavity walls, cavity wall insulation is quick, affordable, and often funded through ECO4. For solid-walled properties, internal or external wall insulation is required. Costs range from £4,000 to £15,000 depending on the method, but ECO4 funding may cover part or all of this for eligible tenants.

Our sister site wallinsulation.co.uk covers all wall insulation options and grants in detail, including the routes available to London landlords with solid-walled properties.

The Cost of an EPC Certificate in London

An EPC assessment in London typically costs between £60 and £120 depending on the size and complexity of the property. London assessors tend to charge more than the national average due to higher operating costs and travel time. However, the certificate is valid for ten years, which makes the annual cost minimal.

For landlords with multiple properties, bulk assessment rates are often available. Contact us for a quote covering your full portfolio.

How Quickly Can You Get an EPC Certificate in London?

Most London assessors can carry out an assessment within two to five working days of booking. In urgent cases, same-day or next-day assessments are sometimes available. The certificate is lodged on the official government register within 24 hours of the assessment, which means you can provide it to prospective tenants almost immediately.

For the government’s official register where you can verify any existing EPC certificate, see: https://find-energy-certificate.service.gov.uk

EPC Exemptions for London Landlords

If you cannot achieve the minimum EPC rating despite making all cost-effective improvements, you may be able to register an exemption. Valid grounds for exemption include cases where the cost of improvements exceeds the current cap, where a tenant refuses access for improvement works, or where planning restrictions prevent the required works.

Exemptions must be registered on the PRS Exemptions Register. They are valid for five years and do not remove the obligation to improve the property when the exemption expires. For full guidance on exemptions, the government provides detailed information here. 

Book Your EPC Certificate in London Today

Whether you need a new EPC certificate for a London property, want to understand your options for improving your rating, or are managing a portfolio across multiple boroughs, contact us today. We arrange qualified London assessors, fast turnaround, and certificates lodged on the official register the same day.

The commercial EPC certificate cost is higher than a domestic EPC, and for good reason. Commercial and domestic EPCs are fundamentally different assessments. They use different methodologies, require different qualifications, and serve different legal purposes. This guide explains the key differences so you know what to expect before you commission either type.

What Is a Domestic EPC?

A domestic EPC assesses the energy performance of a residential property. The assessor visits the property, records details about the construction, insulation, heating system, and glazing, and uses government-approved software to produce a rating from A to G.

Domestic EPCs are required when you sell or let a residential property in England. The assessment typically takes 30 to 60 minutes for a standard home. The cost ranges from £60 to £120 depending on property size and location.

What Is a Commercial EPC?

A commercial EPC, also known as a non-domestic EPC, assesses the energy performance of a commercial building. This includes offices, shops, warehouses, hotels, schools, and any building that is not used as a dwelling.

The commercial EPC certificate cost is higher because the assessment is considerably more complex. Commercial buildings vary enormously in size, use, and mechanical systems. As a result, the assessment requires a Level 3, 4, or 5 qualified assessor depending on the building type, and the methodology used is entirely different from the domestic approach.

How Commercial EPC Certificate Cost Compares to Domestic

For a small commercial property such as a single office unit or retail shop, the commercial EPC certificate cost typically starts at £150 to £300. For larger or more complex buildings, costs rise significantly. A medium-sized office building might cost £400 to £800. A large industrial unit or mixed-use development can cost £1,000 or more.

By comparison, a domestic EPC for a two-bedroom flat costs £60 to £90 in most parts of England. The commercial EPC certificate cost reflects the additional time, specialist software, and higher qualification level required.

Key Differences Between Commercial and Domestic EPCs

• Legal requirement: Both types are required when selling or letting a property. However, commercial buildings above 500 square metres that are frequently visited by the public must also display the EPC in a prominent location.
• Assessor qualification: Domestic assessors hold a Level 3 qualification. Commercial assessors hold Level 3, 4, or 5 depending on building complexity. As a result, commercial assessors are harder to find and command higher fees.
• Methodology: Domestic EPCs use the Standard Assessment Procedure (SAP) or Reduced Data SAP (RdSAP). Commercial EPCs use the Simplified Building Energy Model (SBEM) or dynamic simulation modelling for complex buildings.
• Validity: Both domestic and commercial EPCs are valid for ten years.
• Recommendations: Both types include a recommendations report. However, commercial recommendations tend to focus on building services, lighting, and controls rather than fabric improvements.

When Do You Need a Commercial EPC?

You need a commercial EPC when you sell or let a commercial property in England. Furthermore, you need one when a building is newly constructed or undergoes a material change of use. Public buildings above a certain size must also display a Display Energy Certificate (DEC), which is a separate but related document.

For the government’s full guidance on commercial EPC requirements, see here.

Can the Same Assessor Do Both Types?

No. A domestic assessor is not qualified to produce a commercial EPC. If you need both types for a mixed-use building, you will need separate assessors for the residential and commercial parts. This is common in properties with retail units on the ground floor and flats above.

For domestic EPC assessments across your portfolio, see our guide to finding your EPC certificate.

Our sister site ecoinsulation.co.uk covers external wall insulation options for commercial and mixed-use buildings looking to improve their EPC rating before a sale or lease renewal.

Get a Quote for Your Commercial EPC Today

Commercial EPC certificate cost varies by building type and complexity. Contact us today for a fast, accurate quote from a qualified assessor. We cover all commercial property types across England and lodge certificates on the official register the same day.

An EPC for rental property has never been more consequential than it is in 2026. The government’s Warm Homes Plan, published in January and described as the largest public investment in home upgrades in British history, places rental sector energy efficiency at the centre of its ambitions. At the same time, the 2030 EPC C deadline for privately rented homes has been confirmed, ECO4 is running down toward its December closure, and the new Warm Homes Local Grant is actively distributing funding through local councils. For landlords, understanding the EPC for their rental property is no longer a compliance formality. It is the starting point for a set of decisions that will determine whether their properties remain legally lettable in four years.

Every privately rented property in England and Wales is required to have a valid EPC before it is marketed or let. That requirement is not new. What is new in 2026 is the combination of a confirmed minimum standard, a closing window for funded support, and a penalty regime that makes non-compliance genuinely costly. Fines for failing to meet the EPC C requirement from October 2030 have been confirmed at up to £30,000 per property.

What an EPC for Rental Property Tells You

An Energy Performance Certificate rates a property on a scale from A to G, where A is the most energy efficient and G is the least. The rating reflects the calculated energy performance of the building based on its construction, insulation levels, heating system, hot water provision, ventilation, and lighting. The assessment is carried out by a qualified Domestic Energy Assessor using the Standard Assessment Procedure, known as SAP.

The certificate shows the current rating and the potential rating, which is the rating the property could achieve if all the recommended improvements listed in the certificate were carried out. The gap between the current rating and the potential rating tells you what the property is capable of with investment and what measures the assessor has identified as worth doing.

For landlords, the most important number on the EPC for their rental property in 2026 is the current rating. If it is C or above, the property already meets the 2030 requirement and the task is to maintain it. When it is D, the property is one band below the requirement and a targeted package of improvements will typically close the gap. If it is E, F, or G, the compliance challenge is more significant and the planning needs to start now.

The EPC also has a validity period of ten years. Landlords whose EPC was issued before 2017 should arrange a new assessment, not only because the certificate may have expired but because a new assessment will reflect any improvements made since the last one and will provide an updated recommended measures list that reflects current standards.

The Warm Homes Plan and What It Means for Rental EPC Improvement

The Warm Homes Plan is directly relevant to landlords trying to improve the EPC for their rental property. The plan allocates £15 billion to upgrading five million homes by 2030 and places insulation, heating system improvements, and clean energy measures at the centre of the programme. For rental properties specifically, the relevant strands are ECO4, the Warm Homes Local Grant, and the forthcoming Warm Homes Fund.

ECO4 remains active until 31 December 2026 and covers a range of energy efficiency measures including wall insulation, loft insulation, floor insulation, and heating system upgrades. Landlords whose tenants receive qualifying benefits and whose properties have an EPC rating of D or below may be eligible for fully funded improvements through this route. The tenant’s eligibility drives the ECO4 application, but landlords can facilitate the process and many ECO4 installers work directly with landlords to identify eligible properties in their portfolios.

The Warm Homes Local Grant, delivered through local councils, provides funded upgrades for low income households in less energy efficient homes. Eligibility varies by area but the scheme covers the same range of measures as ECO4 and in some areas is actively targeting rental sector properties. Landlords should contact the local councils for each area where they hold rental properties and ask specifically about the Warm Homes Local Grant and whether their properties or their tenants might qualify.

For landlords whose tenants do not meet the eligibility criteria for either funded scheme, the Warm Homes Fund is expected to offer low or zero interest loans for energy efficiency improvements later in 2026. This will provide a route to EPC improvement without requiring benefit status, which is particularly relevant for landlords with properties let at market rent to working households.

How to Prioritise Improvements for EPC Compliance:

• The recommended measures on an EPC are listed in order of cost effectiveness, but they are not always listed in the order that will have the greatest impact on the rating. A qualified retrofit assessor, working under PAS 2035, can produce a medium term improvement plan that sequences the measures most likely to move the property to EPC C within the available budget.
• For most D rated properties in the private rented sector, the compliance pathway involves insulation improvements to the walls, loft, and floor combined with heating system and controls upgrades. The combination of these measures, particularly in post-1945 properties with cavity walls and accessible loft spaces, is typically sufficient to reach C within the £10,000 cost cap that applies under the new rules.
• For properties at E or below, and particularly for solid wall properties where cavity fill is not an option, the compliance pathway is longer and more expensive. External or internal wall insulation, floor insulation, and potentially a new heating system may all be required. These properties need to be identified now, assessed now, and their improvement programmes started in 2026 to give realistic time for completion before October 2030.
• The EPC for a rental property is the document that tells you where you stand. In 2026, with funded support still available, the landlord deadline confirmed, and the Warm Homes Plan actively distributing money to improve the housing stock, reading that document carefully and acting on what it says is the most important thing a landlord can do right now.

Check your EPC

An EPC rating check in 2026 is not just an administrative task. For landlords with privately rented properties in England and Wales, it is the starting point for understanding their compliance position under one of the most significant pieces of housing regulation in a generation. The government confirmed in February 2026 that all privately rented homes must achieve a minimum EPC C by 1 October 2030. Fines for non-compliance reach up to £30,000 per property. With four years until the deadline, the window to plan, fund, and complete the necessary improvements is narrower than it appears, and it starts with knowing exactly what the current EPC rating check shows.

A rating check takes minutes. The government’s Find an Energy Certificate service lets any landlord enter a property address and retrieve the current EPC, the rating band, the SAP score, the recommended improvements, and the certificate’s validity date. For landlords with multiple properties, running an EPC rating check for each one and building a compliance matrix from the results is the most practical way to understand the scale of the task and prioritise where to act first.

What an EPC Rating Check Shows

The EPC rating check result contains more useful information than the headline band. The SAP score is the number behind the band and it tells you precisely how close or far the property is from the C threshold. A C rating begins at SAP 69. A property scoring 65 needs four SAP points to reach compliance. A property scoring 50 needs nineteen. That distinction shapes the complexity and cost of the improvement pathway entirely.

The recommended measures on the certificate are listed in order of cost effectiveness and each one shows the estimated SAP improvement it would deliver. A landlord who does an EPC rating check and then works through the recommended measures list with a competent retrofit assessor can quickly build a picture of which combination of measures reaches SAP 69 within the £10,000 cost cap and which properties will require a compliance exemption because the target is genuinely unachievable within that budget.

The validity date on the certificate is also worth checking. EPCs are valid for ten years. A certificate issued in 2015 or 2016 is approaching or at its expiry date, and any improvements made since the last assessment will not be reflected in the current rating. A new EPC assessment in these cases is worth commissioning even if the certificate has not yet formally expired, because the updated rating and the new recommended measures list will reflect the current state of the property and provide a more accurate picture of what is needed.

Reading the Result Against the 2030 Deadline:

• Once a landlord has carried out an EPC rating check for each of their properties, the results fall broadly into three categories that determine the urgency and nature of the response.
• Properties already at C or above are compliant for 2030. The task is to maintain the rating through any refurbishment works and to ensure that any changes to the heating system, insulation, or building fabric do not inadvertently reduce the SAP score below 69. A new EPC assessment after any significant works is good practice.
• Properties at D are one band below the threshold. These are the most common properties in the private rented sector and also the most straightforward compliance challenge. Most D rated properties can reach C through a targeted combination of cavity or solid wall insulation, loft insulation, and heating controls upgrades. Many of these measures remain fundable through ECO4 until December 2026 for eligible tenants, and through the Warm Homes Local Grant for qualifying households in council areas where the scheme is active.
• Properties at E, F, or G are the compliance priority. They have the furthest to travel, the most complex improvement pathways, and the greatest exposure to the £30,000 fine if they remain unimproved. They are also the properties most likely to qualify for the most substantial funded support through ECO4 and the Warm Homes Local Grant, precisely because the schemes target the least energy efficient homes. Running an EPC rating check and identifying these properties within a portfolio is therefore both the most urgent thing to do and the action most likely to unlock available funding.

How to Act on an EPC Rating Check Result in 2026

• The practical sequence after an EPC rating check is straightforward. For properties at D or below, contact an ECO4 approved installer and ask for a free eligibility check based on the rating and the tenant’s benefit status. If the household qualifies, the installer manages the rest of the process. For properties where tenants do not meet the ECO4 criteria, contact the local council for the area where the property sits and ask about the Warm Homes Local Grant. For properties where neither scheme applies, monitor the Warm Homes Fund for the low interest loan product expected later in 2026.
• For properties at E, F, or G where the compliance pathway requires multiple measures or solid wall insulation, instructing a PAS 2035 retrofit coordinator to produce a medium term improvement plan is the recommended next step. The plan sequences the measures in the correct order, identifies the funding routes for each one, and provides a realistic timeline for reaching EPC C before October 2030.
• The EPC rating check is the beginning of that process, not the end of it. Running the check takes two minutes. Acting on the result takes planning, funding, and time. The landlords who run their EPC rating check now and start that planning process in 2026 are the ones who will complete it comfortably before the deadline. Those who wait until 2028 or 2029 will be competing for installer capacity, paying higher prices as demand peaks, and running out of the time they need to manage works sensitively around existing tenants.

Check your EPC.

The average EPC rating UK properties carry on their certificates may no longer reflect how those properties are actually performing, and England’s record wet winter of 2025 to 2026 is making that gap wider. After rainfall ran 42% above the long term average according to the Met Office, with some areas recording their wettest winter since 1836, millions of homes are operating at a lower effective thermal performance than their EPC certificate assumes. Understanding why this happens, and what it means for your property, is increasingly important as the 2030 compliance deadline approaches.

The Average EPC Rating by Property Type

Government EPC data for England and Wales shows that the average EPC rating UK existing dwellings hold sits around band D, specifically in the low to mid D range, corresponding to a score of approximately 60 to 65 on the 1 to 100 scale.

This average conceals significant variation. New builds (post 2010) predominantly rate at B or C. Government statistics for Q3 2025 show 85% of new dwellings received an A or B rating. Post war housing (1945 to 1980) typically rates at C or D depending on what improvements have been made. Pre 1919 solid wall properties rate at E, F or G in unimproved form, and these are precisely the properties most vulnerable to the moisture effects of a wet winter.

The average EPC rating UK landlords need to achieve by 2030 is C. The gap between where much of the housing stock currently sits and where it needs to be is significant, and wetter winters are quietly making that gap harder to close.

Why the Average EPC Rating by Property Type Can Overstate Real Performance

An EPC rating represents modelled energy performance, not measured energy use. A Domestic Energy Assessor visits the property, records specific features, wall construction, insulation presence, glazing type, heating system, and enters this data into SAP calculation software. The software outputs a score and band.

The EPC records what is theoretically present in the property. It does not measure how that fabric is performing. And it does not account for the condition of insulation, the moisture content of walls, or the effective thermal resistance of materials that have absorbed water.

Water is a much better conductor of heat than air. When insulation absorbs water, whether cavity fill mineral wool saturated by moisture bridging, floor insulation in a wet subfloor void, or loft insulation dampened by eaves defects, its effective thermal resistance drops significantly. Wet mineral wool can lose 50% or more of its dry thermal resistance. The insulation is still physically present. The average EPC rating UK calculation still records it as present. But it is not delivering the performance the certificate assumes.

 

What the SHDF Data Shows About Real EPC Improvements

The most useful published dataset on real EPC improvement comes from the Social Housing Decarbonisation Fund (SHDF). The government’s December 2025 SHDF statistics show that almost 100% of households upgraded under Wave 2.1, those starting from EPC band D or below, reached band C or above following the programme of works. Wave 2.2 replicated this result, with 99% of upgraded households reaching C or above.

This data demonstrates that moving properties well below the average EPC rating UK holds, E, F and G rated homes, up to band C is achievable at scale. However, it also reflects a package approach where multiple measures are installed together. A property that holds the average EPC rating UK properties sit at, band D, may need fewer measures but still requires accurate diagnosis of which measures deliver the most improvement.

Which Properties Are Most at Risk From Wet Winter Performance Degradation

Not all properties face equal risk from wetter winters degrading their effective thermal performance below the average EPC rating UK calculation assumes.

Properties with older cavity wall insulation. Mineral wool installed in the 1980s or 1990s that has settled or been exposed to previous moisture events carries greater risk of performance degradation in a wet winter than recently installed EPS bead systems.

Solid wall properties without EWI. Solid walls that have absorbed months of sustained rainfall are losing heat faster than their notional U values suggest.

 

Properties with suspended timber floors above poorly ventilated voids. Elevated void moisture means wet ground and potentially wet joist surfaces, both of which conduct heat more readily than dry equivalents.

 

Why This Spring Is the Right Time for a New EPC Assessment

Getting a new EPC assessment this spring serves two practical purposes for homeowners and landlords whose properties fall below or near the average EPC rating UK target of C.

First, it establishes an accurate current baseline under RdSAP 10, the updated methodology introduced in June 2025. Properties assessed before this date used the old RdSAP 9.94 methodology. Some property types, particularly solid brick properties with walls thicker than 280mm, may score differently under the new methodology.

Second, it triggers an up to date recommended improvements table. For landlords planning improvements to reach C before the 2030 deadline, an accurate 2026 baseline is more useful than a certificate issued several years ago before this winter’s rainfall tested the building fabric.

For detailed guidance on EPC bands, what the ratings mean, and how RdSAP 10 changed the methodology, read here 

 

Frequently Asked Questions

What is the average EPC rating UK properties hold?

The average for existing dwellings in England and Wales is approximately D, in the range of 60 to 65 on the 100 point scale. New builds average B.

Does a wet winter automatically lower my EPC rating?

No. Your EPC certificate does not update based on weather conditions. However, your property’s real world thermal performance may fall below what the certificate assumes if insulation has been degraded by moisture this winter.

How can I tell if this winter has affected my insulation performance?

A thermal imaging survey of the internal walls in cold conditions reveals cold spots and areas of reduced insulation performance. A borescope inspection of the cavity can confirm whether cavity insulation is wet or degraded.

Should the average EPC rating UK holds be higher by now?

The average EPC rating UK properties hold has improved significantly over the past two decades through insulation programmes, glazing upgrades and heating improvements. However, the pace of improvement needs to accelerate to meet the government’s targets, and maintaining that improvement through increasingly wet winters requires resilient insulation materials and correctly specified systems.

 

Met Office climate projections available at metoffice.gov.uk

An EPC assessment booked this spring, after England’s record wet winter, gives homeowners and landlords something that many current certificates cannot: an accurate picture of where their property actually stands. After the wettest winter England has recorded in years — with rainfall running 42% above average according to the Met Office and some areas seeing rain on 41 consecutive days — the gap between what an old EPC assumes and what a property’s fabric is actually delivering has never been wider.

 

Why This Spring Is a Particularly Critical Moment

Three factors make spring 2026 an unusually important time to get an EPC assessment, even for properties that already have a valid certificate.

 

The building fabric has just been tested by extreme conditions. The winter of 2025 to 2026 was England’s eighth wettest on record. Cavity insulation, floor insulation, loft insulation, and the walls and mortar of millions of properties have been exposed to sustained saturation unlike anything seen in recent years. An assessment done now — while the effects of that saturation are still visible to an experienced assessor — captures an accurate current state.

 

The methodology changed in June 2025. RdSAP 10, introduced in June 2025, updated the way EPC assessors calculate ratings for existing homes. Properties assessed before this date used the old RdSAP 9.94 methodology. Some property types — particularly solid brick properties with walls thicker than 280mm — may score differently under the new methodology. If your certificate predates June 2025, a new assessment under RdSAP 10 may produce a different rating.

 

The 2030 landlord compliance deadline is approaching. Landlords must achieve EPC band C for all tenancies by 1 October 2030. A property assessed in spring 2026 and found to be at D 62 has a clear roadmap to C. A property operating from a certificate issued in 2019 under the old methodology may have an inaccurate baseline that leads to poorly targeted investment.

 

Who Specifically Needs an EPC Assessment This Spring

Landlords Planning Improvements

If you are a landlord planning insulation or heating improvements to reach EPC C before 2030, a current assessment under RdSAP 10 is the correct starting point. The recommended improvements table on a 2026 certificate reflects the current methodology, current U value assumptions for your wall type, and the current SAP weighting of each measure.

 

Investing in improvements guided by a certificate from 2021 means your improvement plan may be based on inaccurate starting assumptions. The same money spent guided by a current certificate typically delivers a more efficient route to C.

Properties With Cavity Insulation Installed Before 2000

Older mineral wool cavity insulation that has settled, degraded, or been affected by moisture over multiple wet winters may not be delivering the performance assumed in the existing EPC. Under RdSAP 10, an assessor who can evidence the current condition of the insulation records the accurate state rather than the theoretical state. If your cavity insulation has been investigated and found to be degraded, a new assessment captures this and produces an accurate baseline for improvement planning.

Solid Brick Properties

Solid brick properties with walls thicker than 280mm may score better under RdSAP 10 than under the previous methodology, because the updated default U value for thick solid brick walls is 1.4 W/m²K rather than the previous 2.1 W/m²K. If your property has thick solid brick walls and your existing certificate predates June 2025, a new assessment may produce a higher rating without any physical improvements to the property.

Properties Close to the D to C Boundary

If your property currently holds a D rating anywhere from 55 to 68, and you or a previous owner have made improvements since the last assessment — loft insulation top up, a new boiler, double glazing, solar panels — a new assessment is very likely to produce a higher score. Even without improvements, a solid brick property may rate higher under RdSAP 10.

 

For a property at D 65 or above, a new assessment alone — reflecting documented improvements and the updated methodology — may be enough to secure band C without any further work.

 

What Happens During a Spring EPC Assessment

An EPC assessment takes 30 to 60 minutes for a standard domestic property. Under RdSAP 10, the assessor uses an evidence hierarchy that prioritises documented performance over default assumptions. Gathering your paperwork before the assessor arrives makes a real difference to the outcome.

 

Bring out documentation for:

 

Boiler make, model, and installation certificate. The manufacturer’s efficiency rating, if evidenced, produces a more accurate score than a default assumption.

 

Loft insulation depth and installation records. If loft insulation was installed or topped up since the last assessment, a completion certificate or dated invoice allows the assessor to record the current depth accurately.

 

Cavity or wall insulation certificates. Any installation completed under a government scheme should have a completion certificate. This is the evidence the assessor needs to record the insulation as present.

 

Window installation records. FENSA certificates for double or triple glazing installed since the last assessment allow the assessor to record the correct glazing specification.

 

Solar panel MCS certificates. Photovoltaic panels are recorded based on system size and specification. The installation certificate provides this information.

 

The assessor also observes:

 

Wall construction and thickness — relevant to the RdSAP 10 U value revisions for solid brick properties.

 

Heating system controls — programmers, thermostats, and thermostatic radiator valves all contribute to the rating.

 

Hot water cylinder insulation — an uninsulated cylinder records differently from an insulated one.

 

The Cost of Getting an EPC Assessment

A domestic EPC assessment costs approximately £60 to £120 in 2026, depending on property size, assessor availability, and location. For a landlord with a portfolio of properties, volume rates may apply.

 

This is a modest cost relative to the value of the information it produces. A landlord who spends £10,000 on improvements based on an inaccurate 2019 baseline may not reach the C rating they need and face additional expenditure. The same landlord working from a £90 assessment conducted in May 2026 has accurate information and an efficient improvement plan.

 

The 2027 Home Energy Model: Another Reason to Act Now

The government is developing the Home Energy Model (HEM) as a replacement for the current SAP and RdSAP framework. HEM is expected from late 2027 and will introduce four headline metrics — fabric performance, heating system, smart readiness, and energy costs — rather than the current single band rating.

 

EPC certificates issued under the current methodology remain valid for 10 years. A property that achieves a valid EPC C under RdSAP 10 before October 2029 locks in current methodology compliance for up to 10 years — avoiding the more demanding dual metric requirements that HEM will introduce.

 

Getting an accurate assessment this spring, followed by targeted improvements to reach C, is therefore not just useful for current planning. It is the most efficient route to securing long term compliance before the goalposts change in 2027.

 

For detailed guidance on what each EPC band means and how the RdSAP 10 changes affect your rating, visit our guide to EPC band ratings explained.

 

Frequently Asked Questions

Do I legally need a new EPC after a wet winter? No. A valid EPC certificate remains valid for 10 years regardless of weather conditions. However, commissioning a voluntary new assessment is sensible if your certificate predates June 2025, if significant improvements have been made since the last assessment, or if you are planning improvement works and need an accurate baseline.

 

Will a new assessment always produce a better result? Not necessarily. If insulation has been degraded by this winter’s moisture and the assessor records this accurately, the new rating may be lower than the existing certificate. However, an accurate lower rating is more useful than an optimistic one when planning improvements.

 

How do I find an accredited assessor? Search the national EPC Register at epcregister.com, or contact an accreditation body such as Elmhurst Energy, Stroma, or ECMK. Always verify accreditation before booking.

 

Can I get a new EPC assessment if my tenants are in the property? Yes. The assessor needs access to all rooms, the loft, and the heating system, but does not need the property to be vacant. Give tenants advance notice of the assessment and explain what it involves.

 

What if my property cannot reach C even after improvements? If the cost of reaching C exceeds £10,000 and no grant funding covers the balance, a cost cap exemption can be registered on the PRS Exemptions Register. The exemption requires evidence that all available improvements have been made within the cost cap. Always exhaust grant funding options first — ECO4 and GBIS may fund measures that bring the cost within the cap.

 

Met Office winter 2025 to 2026 seasonal data published March 2026. RdSAP 10 methodology information from DESNZ published guidance, June 2025. The national EPC Register for England and Wales is available at epcregister.com.

 

If you had an EPC assessment before June 2025 and are now getting a new one, the score may be different from what you expected, even if nothing has changed about the property. On 15 June 2025, the methodology used to calculate EPC ratings for existing homes in England and Wales changed from RdSAP 9.94 to RdSAP 10. This was the most significant update to the EPC assessment methodology in over a decade, and it affects how some properties score, how assessors collect information, and what documentation homeowners need to provide.

 

EPC band ratings explained: What EPC Bands Mean and How They Are Calculated

An EPC rates a property on a scale of 1 to 100, divided into seven bands:

 

Score	Band
92 to 100	A
81 to 91	B
69 to 80	C
55 to 68	D
39 to 54	E
21 to 38	F
1 to 20	G

 

The score calculates using the Standard Assessment Procedure (SAP) for new buildings and the Reduced Data SAP (RdSAP) for existing homes, “reduced” because an assessor visiting an existing building collects a defined set of data points rather than the full design specifications available for new construction.

 

The score represents the estimated energy cost of heating, lighting, and hot water for the property under standard occupancy assumptions. It does not reflect actual energy use, which varies with occupant behaviour, the number of people in the property, and energy tariffs.

 

What RdSAP 10 Changed

The June 2025 update made changes across several areas of the assessment methodology. The most significant for homeowners and landlords are:

Evidence Based Assessment Replaces Default Assumptions

Under the previous methodology (RdSAP 9.94), assessors frequently relied on default assumptions when specific information was unavailable. For example, if the make and model of a boiler could not be verified, the system used a default efficiency figure, often lower than the actual boiler’s performance. If insulation was present but the installer certificate was unavailable, the assessor might not be able to record it accurately.

 

RdSAP 10 introduces a hierarchy that prioritises actual evidence over assumptions. An assessor who can verify the boiler model and manufacturer data uses the actual efficiency figure. An assessor who cannot provide evidence uses a lower default that reflects the uncertainty.

 

The practical consequence for property owners is that documentation matters more under RdSAP 10 than it did before. Keeping records of:

 

• Boiler make, model, and installation date
• Insulation certificates or building regulations completion certificates
• Window installation certificates showing glazing type and installation date
• Solar panel installation records

 

These documents allow an assessor to use better performance data in the calculation, which can meaningfully affect the score.

Revised U Values for Solid Walls

The previous methodology used a fixed default U value of 2.1 W/m²K for solid brick walls, applied regardless of the actual wall thickness. RdSAP 10 introduces a step change for solid brick walls: properties with walls thicker than 280mm now receive a default U value of 1.4 W/m²K rather than 2.1 W/m²K.

 

This change is based on evidence from research showing that the actual U value of UK solid walls is on average closer to 1.3 W/m²K than the previously assumed 2.1 W/m²K. The revision makes EPCs more accurate for solid wall properties, but it also means that some solid brick properties score slightly better than they did under the previous methodology, purely from the methodology change, with no physical improvement to the building.

 

For solid stone walls, sandstone, limestone, and granite, RdSAP 10 also provides revised U values, with slightly more generous figures for the thick stone walls typical of older Scottish and northern English construction.

Improved Handling of Flats and Terraced Properties

Previous versions of RdSAP applied default assumptions about heat loss through party walls and shared floors and ceilings that could understate the performance of mid floor flats and mid terrace properties. RdSAP 10 adjusts these calculations, which may result in improved scores for some flat and terrace properties even without any physical changes.

Heating System Evidence Requirements

The RdSAP 10 hierarchy requires assessors to record the specific make and model of heating systems where this can be verified. Smart heating controls, programmers, thermostats, and thermostatic radiator valves, are captured more accurately where the assessor can confirm their presence.

 

For properties with heat pumps, RdSAP 10 captures more detail about the specific heat pump model and its Seasonal Coefficient of Performance (SCOP), which affects the score more precisely than the previous methodology’s more generalised treatment of heat pump installations.

 

How Your Score May Have Changed

Some property types are more affected by the RdSAP 10 changes than others:

 

Solid brick properties with walls over 280mm thick, these properties may score slightly better under RdSAP 10 due to the revised U value, even with no physical improvement.

 

Properties with documented improvements, where the owner can provide installer certificates and documentation, the assessor can record better performance data, producing a more accurate (and often higher) score than under a default assumption methodology.

 

Flats and terraced houses, the revised heat loss assumptions for shared elements may produce modestly improved scores.

 

Properties with unverified heating systems, where a boiler’s details cannot be confirmed, the new methodology may apply a lower efficiency default than before, potentially producing a worse score for the same boiler.

 

EPC band ratings explained: What Homeowners Should Do Before a New Assessment

Given the evidence requirements under RdSAP 10, prepare for any new assessment by gathering:

 

Boiler documentation. The installation certificate from when the boiler was installed, or at minimum the make, model, and installation year. If the current boiler replaced an original system, the replacement paperwork is what matters.

 

Insulation records. Building regulations completion certificates for any insulation installed since 2002. Installer certificates from loft, wall, or floor insulation installed under government schemes. Even a dated invoice from an insulation company is better than nothing.

 

Window installation records. FENSA certificates or equivalent for double or triple glazing installed since 2002. These confirm the glazing type and installation date.

 

Solar panel records. The installer certification and any MCS (Microgeneration Certification Scheme) documentation for solar PV or solar thermal.

 

Heat pump documentation. The make, model, and SCOP figure from the installation certificate.

 

An assessor working from good documentation produces a more accurate assessment than one working from default assumptions. For some properties, the difference between a documented and an assumed assessment can be several EPC points, enough to cross a band boundary.

 

The Next Methodology Change: Home Energy Model from 2027

RdSAP 10 is not the last change coming. The government is developing the Home Energy Model (HEM) as a replacement for the current SAP and RdSAP framework. HEM is expected to be ready in the second half of 2027.

 

Under HEM, domestic EPCs will move to four new headline metrics: fabric performance, heating system performance, smart readiness, and energy costs. The single band rating from A to G will be supplemented with these additional metrics.

 

The implications for properties currently rated C are significant. A property that achieves C under RdSAP 10 may score differently under HEM if its heating system changes how it is assessed. The government has confirmed that EPCs issued under the current methodology will remain valid for 10 years, so an EPC C obtained before HEM takes effect will not automatically require reassessment.

 

Homeowners and landlords who achieve a valid EPC C before October 2029 under the current methodology lock in compliance for up to 10 years, avoiding the more demanding HEM requirements during that period.

 

EPC band ratings explained: Frequently Asked Questions

Why is my new EPC score different from my old one when nothing has changed? The RdSAP 10 methodology change may have affected your score. Solid brick properties with thick walls, terraced properties, and flats may all see changes due to revised calculation assumptions. Changes in documented evidence, either better documentation producing a higher score or less documentation producing a lower one, also explain differences between assessments.

 

Does RdSAP 10 make it easier or harder to achieve an EPC C? It depends on the property. Solid brick properties with thick walls may find it slightly easier due to the revised U value. Properties where the owner cannot provide boiler or insulation documentation may find the new evidence hierarchy means their score is lower than a previous assessment that used more generous defaults.

 

Is an EPC from before June 2025 still valid? Yes. EPCs remain valid for 10 years from the date of issue, regardless of methodology changes. A certificate from 2018 is valid until 2028 for the purpose of a sale or letting. However, it does not reflect RdSAP 10 and may not accurately represent the property’s performance under the current methodology.

 

Do I need a new EPC because of RdSAP 10? Not unless your existing certificate has expired or you are undertaking a transaction that requires a current certificate. If you are planning improvements and want an accurate baseline, commissioning a new assessment under RdSAP 10 gives you a starting point that reflects the current methodology.

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Information correct as of April 2026. EPC methodology continues to evolve, monitor government guidance for the transition to the Home Energy Model from 2027.