Energy Performance Certificate guide
Read the rating, recommendations, source and date in context.
What an EPC can show
An Energy Performance Certificate records an assessed energy-efficiency rating, typical energy information and potential improvements at the date of assessment. It can help frame questions about heating, insulation and likely improvement work.
What to check
- The certificate address and assessment date.
- The current and potential ratings.
- Recommended measures, indicative costs and whether work has since changed.
- Whether an exemption is claimed and where it is recorded.
Actual bills depend on occupancy, tariffs, weather and the building’s condition. Verify the certificate through the official register and ask an appropriate professional about planned work.
Find an energy certificate on GOV.UK
Figures are illustrative and based only on the values entered. Rules, rates, products and personal circumstances can change. Confirm tax with the relevant authority and obtain qualified financial or legal advice where needed. Calculation basis reviewed 28 October 2026.