Will my existing EPC become invalid when HEM launches?
Existing EPCs remain valid for ten years from issue.
Existing EPCs remain valid for ten years from issue.
The four metric structure and the heating system cap come from a government consultation that closed in March 2026.
Not necessarily.
The launch was delayed from October 2026 to the second half of 2027.
Under the current proposals, no.
Often yes, it is worth checking with your local conservation officer before starting work.
Yes, but with care in older properties.
Genuine improvements in either area can increase the SAP points.
A professional installer is the safer route.
Yes, heat rises and your loft should be well insulated, and ventilated.