How to Improve Your EPC Rating Before Selling or Letting

If you have recently received an Energy Performance Certificate (EPC), you may be wondering how to improve your EPC rating before selling or letting your property.

An EPC gives a property an energy efficiency rating from A to G and includes recommendations for possible energy-efficiency improvements. Understanding these recommendations can help homeowners and landlords decide which improvements may be practical for their property.

If you are unfamiliar with EPC ratings, our guide to EPC Rating Explained: What A to G Means for London Property Owners explains what each EPC band means and what factors can affect the rating.

What Does an EPC Rating Measure?

An EPC measures the energy efficiency of a property using a rating from A to G. Band A represents the highest level of energy efficiency, while Band G represents the lowest.

The assessment can consider several features of a property, including:

• Insulation

• Heating systems

• Hot water

• Windows and glazing

• Lighting

• Renewable energy systems

• Other energy-related characteristics

The EPC also provides recommendations for potential improvements.

If you want to understand what an assessor looks at during the assessment, read our guide to What Does an EPC Assessment Include?.

Check Your Existing EPC First

Before spending money on improvements, check your existing EPC.

You can use the official GOV.UK Find an Energy Certificate service to search for an existing certificate.

An EPC is generally valid for 10 years, so you may not need a new assessment simply because you are preparing to sell or let your property.

Checking your certificate first can help you understand:

• Your current EPC rating

• The certificate expiry date

• Your property’s energy performance

• Recommended improvements

• Potential areas where energy efficiency could be improved

If your EPC has already expired, our guide Expired EPC in London: What to Do Next explains the next steps.

How to Improve Your EPC Rating

The best way to improve your EPC rating depends on the individual property and the recommendations shown on the certificate.

Some common areas that may be considered include insulation, heating, glazing, lighting and hot water.

1. Improve Insulation

Insulation can help a property retain heat and may be included among the recommendations on an EPC.

Depending on the construction of the property, recommendations could involve areas such as:

• Loft insulation

• Roof insulation

• Wall insulation

• Floor insulation

• Other measures that reduce heat loss

Before carrying out major insulation work, consider the property’s construction and condition. Older London properties may require a different approach from newer homes.

It is also sensible to obtain appropriate professional advice before carrying out significant building work.

2. Review the Heating System

Heating can have an important effect on the energy performance of a property.

Your EPC recommendations may identify possible improvements involving:

• Heating controls

• Boiler efficiency

• Hot water systems

• Heating system upgrades

• Hot water insulation

The appropriate solution will depend on the existing system and the property.

Do not assume that replacing a heating system will automatically produce a specific EPC rating. The final rating depends on the full assessment of the property.

3. Consider More Efficient Lighting

Lighting is another area that can contribute to the EPC assessment.

If your property still has older inefficient lighting, replacing suitable fittings or bulbs with more efficient alternatives may be worth considering.

Lighting improvements can be relatively straightforward compared with larger property upgrades, although the potential impact will vary between properties.

4. Review Windows and Glazing

Windows and glazing can also influence the energy performance of a property.

If an EPC identifies glazing as an area for improvement, you could consider whether upgrading the windows is appropriate.

However, window replacement can be a significant investment. Consider the condition of the existing windows, the expected benefit and any planning or conservation requirements that may apply.

This can be particularly important for older or character properties in London.

5. Consider Hot Water Efficiency

Hot water systems can also form part of the EPC assessment.

Depending on the property, potential improvements could include better insulation around hot water systems or upgrading inefficient equipment.

As with other improvements, review the recommendation on your EPC before deciding what work is appropriate.

Should You Improve Your EPC Before Selling?

If you are preparing to sell your property, you may be wondering whether you need to improve the EPC rating before putting the property on the market.

An EPC is generally required when selling a property in England and should be ordered before the property is marketed, subject to applicable exemptions.

However, there is not a general minimum EPC rating that an ordinary residential property must achieve simply to be sold.

You can read our detailed guide EPC for Selling a Property in London: What You Need to Know for more information.

If you are considering improvements before selling, look at the recommendations on your existing EPC and consider the likely cost and benefit of each improvement.

Not every recommendation will necessarily make financial sense for a property that is about to be sold.

Should Landlords Improve Their EPC Rating?

Landlords should pay particular attention to the EPC rating of a rental property.

For covered domestic private rented properties, the current Minimum Energy Efficiency Standards generally require a minimum EPC Band E unless a valid exemption applies.

Because regulations can change, landlords should always check the latest GOV.UK guidance on domestic private rented property energy standards before making decisions.

Our guide EPC for Renting a Property in London: A Landlord’s Guide provides more information about EPC requirements for rental properties.

Landlords can also use our EPC Checklist for Landlords when preparing a property before renting it out.

Do You Need a New EPC After Making Improvements?

Making improvements does not automatically mean that you need a new EPC immediately.

If your existing EPC is still valid, check the certificate and its recommendations before arranging another assessment.

However, if you have made significant improvements that may affect the property’s energy performance, you may wish to discuss whether a new assessment is appropriate with an accredited energy assessor.

A new assessment can provide an updated rating based on the property’s current features.

Think About the Cost of Improvements

Improving energy efficiency can involve anything from relatively simple changes to significant investments.

Before starting major work, consider:

• The cost of the improvement

• The condition of the existing property

• The potential energy-efficiency benefit

• How long you plan to own the property

• Whether you are selling or letting

• Whether planning permission or other requirements apply

• Whether professional advice is needed

The EPC recommendations can help you identify possible improvements, but they should not be treated as a guarantee of a particular future rating.

Prepare Your Property for Sale or Rent

An EPC is only one part of preparing a property for the market.

If you are selling or letting a London property, you may also need to prepare:

• Professional property photographs

• A clear floor plan

• Accurate property information

• Room measurements

• Property descriptions

• Marketing materials

• Required property documentation

Our Rental Property Listing Checklist London: EPC, Photos & Floor Plan covers several of the key areas landlords should consider before advertising a rental property.

For estate agents and property professionals, our guide Estate Agent Property Marketing Package London: What Should Be Included? explains how EPCs, photography and floor plans can form part of a wider property marketing process.

You can also read our Property Photography Checklist: How to Prepare Your Home before arranging professional property photography.

A Simple EPC Improvement Checklist

Before spending money on improvements, work through this checklist:

• Check your existing EPC

• Confirm the certificate expiry date

• Review your current EPC rating

• Read the recommendation report

• Identify practical improvements

• Compare potential costs

• Consider professional advice for major work

• Review insulation

• Check heating and hot water systems

• Review lighting

• Consider windows and glazing

• Consider whether renewable technologies are appropriate

• Decide whether a new EPC assessment is necessary

Final Thoughts

Learning how to improve your EPC rating starts with understanding your existing certificate.

Rather than making improvements without a clear plan, review the recommendations on your EPC and consider which measures are suitable for your property.

For sellers, an EPC is an important part of preparing a property for marketing. For landlords, the EPC rating can also be relevant to the energy-efficiency requirements that apply to privately rented properties.

If you are preparing your property for sale or rent, it can be useful to organise your EPC alongside other marketing essentials such as professional photography and a floor plan.

For the latest legal and regulatory information, always check the relevant GOV.UK guidance.

If you need an EPC in London, you can book an EPC assessment with EPC Rate London or explore the available EPC services.