Energy Performance
Certificates Explained
Everything you need to know about EPCs when selling your property — what they are, why they matter, and how to improve your rating.
What is an Energy Performance Certificate?
An Energy Performance Certificate (EPC) is a report drawn up by an accredited domestic energy assessor. They visit your home to evaluate how much energy it takes to power the property and keep it warm, then provide a rating from A (most efficient) to G (least efficient).
In the UK, around 22% of carbon emissions come from our homes, from heating, lighting, and running household appliances. An EPC helps both sellers and buyers understand the energy efficiency of a property and what changes could improve it.
Legal Requirement for Sellers
Yes, an EPC is a legal requirement when selling your home. You must commission one and provide it to your estate agent and potential buyers before your property is listed. Without a valid EPC, your property cannot be advertised for sale.
EPC Rating Scale
92 and above
Most efficient
81 to 91
Very efficient
69 to 80
Efficient
55 to 68
Average
39 to 54
Below average
21 to 38
Poor
1 to 20
Very poor
What Does an EPC Assessment Include?
Insulation
Wall, floor, and loft insulation quality
Windows
Double or triple-glazing assessment
Heating System
Boiler efficiency and age
Lighting
Energy-efficient bulb usage
Drafts & Air Leaks
Sources of heat escape
Ventilation
Heating and cooling systems
How Long Does an EPC Last?
An EPC lasts for 10 years and covers the property during that period, no matter how many times it's sold or rented out. However, if you make improvements to your home (like installing solar panels or upgrading insulation), these won't be reflected in your EPC rating until you commission a new assessment.
EPC Costs & Who Pays
How Much Does an EPC Cost?
Cost for an EPC vary. You can typically expect to pay between £70 - £120 depending on the service provider, your location and property size.
Who Pays for the EPC?
If you're selling your home, it's your responsibility to obtain and pay for the EPC. You'll need to provide it to your estate agent and potential buyers.
How to Improve Your EPC Rating
Your EPC report includes step-by-step recommendations to improve your home's energy rating. These are listed in order to help you save the most energy with each improvement. For example, insulating your home is typically more cost-effective than replacing your boiler.
Insulation
Improve wall, floor, and loft insulation to retain heat
Windows
Upgrade to double or triple-glazed windows
Boiler
Install a more efficient heating system
Solar Panels
Generate your own renewable energy
Lighting
Switch to energy-efficient LED bulbs
Ventilation
Improve air quality and reduce heat loss
Average EPC Ratings in the UK
Homes in England and Wales have an average EPC rating of D
Properties built after 2012 average a rating of B
Homes built before 1900 average a rating of E
Houses typically score lower than flats
Ready to Sell Your Home?
Understanding your property's energy rating is just one part of successful selling. Let DEAL. help you maximize your home's value.
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