Guides
Your EPC rating:what it says, what it misses, and how to actually use it
Your EPC tells you more than most people realise, and less than it pretends to. We explain what the rating means, why some of the recommendations are genuinely useful, and why others should be treated as a starting point rather than a to-do list.
Your Energy Performance Certificate is one of the most influential documents in retrofit. Not because it is perfect, but because buyers, lenders, and grant schemes use it as a shared reference point.
The rating is derived from a model of your home's fabric and systems. It can miss some day-to-day factors, but it still helps highlight where upgrades are likely to have the biggest impact.
For homeowners, the practical takeaway is simple: use the EPC as a map, then validate assumptions on site with a proper survey and a whole-house plan.
Still have a question?
Ask us anything about your home.
Our surveyors and engineers answer questions like these every day. If a guide didn't cover your case, ask a real person for a straight answer, not a sales pitch.
Monday–Friday, 09:30–17:30. A real person, every time.