You can't self-certify an EPC — it has to be carried out by an accredited domestic energy assessor (DEA).
Assessors must be registered with an approved accreditation scheme. Search by postcode to find assessors covering your area, and compare a couple of quotes — prices vary more than people expect for what's a fairly standardised visit.
Most assessments are booked within a few days and take 45–90 minutes on site, depending on property size.
The assessor measures room dimensions, checks insulation (loft, walls, floor where visible), notes the heating system and controls, checks glazing type, and photographs key features. They don't need to move furniture or access every cupboard.
Typical cost is £60–£120 for an average home, more for larger or unusual properties. The certificate is usually lodged on the official register within a few days of the visit, and is instantly searchable from that point.
Already have an EPC? Check whether one's already on file before booking a new assessment.
Go to the EPC checker →