EPC Blog
Understanding what an EPC is, how it works, and what to expect.
RdSAP 10 replaced RdSAP 9.94 in October 2025, the first major methodology update since 2012. Here's what changed, which properties are affected, and why some ratings have shifted.
An EPC is valid for 10 years. Here is when you can use an old certificate, when you must get a new one, how to check expiry, and why some mortgage lenders now require a current EPC.
Exactly what an EPC assessor records during a visit, walls, heating, windows, lighting, and more. How long it takes, what to prepare, and common surprises, from a working London DEA.
EPC ratings run from A (most efficient) to G (least). This guide explains the A–G band scale, SAP scores, where most London homes sit, and what your rating means for selling or renting.
Elmhurst-accredited assessor. Guide prices from £49. Certificate within 72 hours.