EPC services for homes and portfolios
Energy Performance Certificates produced by qualified Domestic Energy Assessors, for single properties and coordinated programmes.
What is an EPC?
An Energy Performance Certificate (EPC) records the assessed energy efficiency of a property using the approved government methodology. It provides an efficiency rating band and a set of recommendations for improving the property. The rating is produced from the evidence recorded during the assessment — it is not an opinion or a negotiated figure.
Who may need one
- Homeowners marketing a property for sale
- Landlords letting or re-letting a property
- Agents preparing marketing particulars
- Housing providers maintaining accurate stock energy data
- Owners applying for retrofit or funding programmes that require current certificates
Requirements and exemptions vary by property type and circumstance. If you are unsure whether a certificate is required, tell us about the property and we will explain the position as we understand it — this is general information, not legal advice.
Before, during and after the visit
Before
We confirm the scope and a written quotation, agree an appointment, and let you know what access is needed — including lofts, meters, boilers and any outbuildings within scope.
During
The assessor inspects and records the construction, insulation, heating, controls, glazing, ventilation and lighting, taking measurements and photographs as evidence.
After
The assessment is quality checked and the certificate is lodged to the national register. We confirm lodgement and provide the certificate reference.
Typical evidence an assessor may collect
- Room dimensions and property layout
- Wall, roof and floor construction
- Insulation type and thickness where visible
- Heating system, fuel type and controls
- Hot water provision and cylinder details
- Glazing type and approximate age
- Ventilation and extract provision
- Low-energy lighting proportion
- Photographs supporting each recorded item
Factors affecting timescale and quotation
- Property size, type and number of extensions or conversions
- Location and assessor availability in that area
- Access arrangements and resident availability
- Volume of properties in a portfolio instruction
- Whether other compatible surveys are combined into the same visit
- Availability of evidence on site, which can affect assessment time
We do not publish fixed prices or guaranteed turnaround times. Both are confirmed in writing for your specific instruction.
Domestic assessments
Single properties for sale, letting or renewal, with one point of contact from booking to lodgement.
Portfolio programmes
Scheduled batches with geographic allocation, resident booking support and progress reporting.
Renewals and checking an existing EPC
If you are not sure whether a valid certificate already exists, send us the address and postcode. We will check the public register position with you and advise whether a new assessment is needed. Where works have been completed since the last certificate, a new assessment will reflect the evidence available at the time of the visit.
MEES support
The Minimum Energy Efficiency Standards affect the letting of certain properties in England and Wales. D8 can provide a current assessment and set out the recorded improvement recommendations so you can plan works and take your own advice. We do not provide legal advice, and we do not guarantee that any particular work will move a property into a specific band.
Frequently asked questions
- How long is an EPC valid?
- An EPC is normally valid for 10 years from the date it is lodged, unless a newer certificate is produced for the same property.
- How long does an assessment visit take?
- This depends on the size, layout and complexity of the property, and on how much evidence is available on site. We confirm an expected duration when we arrange the appointment.
- Can you tell me what rating I will get?
- No. The rating is produced by the approved government methodology using the evidence recorded during the assessment. We cannot guarantee or promise a rating in advance.
- Do I need a new EPC if I already have one?
- Not usually, if the existing certificate is still valid. We can help you check the existing certificate and advise whether a new assessment is appropriate.
- How much will it cost?
- Fees depend on property type, size, location and the volume of work involved. We provide a written quotation before any visit is arranged.
Request an EPC assessment
Tell us about the property and we will confirm availability and a written quotation.