EAC South West
Based in Penzance, Cornwall · Covers Cornwall and the South WestEAC South West is based in Penzance, Cornwall, offering SAP calculations, on-construction EPC and air tightness testing across the South West. It lists OCDEA accredited on its website. We haven’t checked this against the scheme’s register yet.
Services
| Service | Regulation | Price |
|---|---|---|
| SAP calculations | Part L | Ask for a quote |
| On-construction EPC | Part L | Ask for a quote |
| Air tightness testing | Part L | Ask for a quote |
Services listed on Signed Off. The provider may offer others.
About
Energy Assessment Consultancy based in Penzance, covering Cornwall and the wider South West. Provides SAP calculations at design and as-built stage with the completion EPC lodged, predicted energy assessments, and air tightness and ventilation testing.
Details taken from the provider’s own website on 22 October 2026.
What we’ve checked, and what we haven’t
Areas covered
Covers Cornwall and the South West
South West
About these reports
SAP calculations. A SAP calculation shows building control that a new home, conversion or heavily glazed extension meets the energy and carbon targets in Part L of the Building Regulations.
On-construction EPC. When a new home is finished, or a building is converted into a new home, an on-construction Energy Performance Certificate (EPC) has to be produced from the as-built SAP calculation and lodged on the government register.
Air tightness testing. An air tightness test measures how much air leaks out of a building through gaps in its fabric.
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