Brontide Consulting
Based in Chelmsford, EssexBrontide Consulting is a limited company based in Chelmsford, Essex, offering SAP calculations, on-construction EPC, commercial EPC and overheating assessment across the East of England. It lists CIBSE Low Carbon Energy Assessor 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 |
| Commercial EPC | EPC | Ask for a quote |
| Overheating assessment | Part O | Ask for a quote |
Services listed on Signed Off. The provider may offer others.
About
Building energy consultancy near Chelmsford offering Part L SAP 10 and SBEM calculations with EPCs, TM52 and TM59 overheating assessments and BREEAM thermal comfort modelling.
Details taken from the provider’s own website on 17 October 2026.
What we’ve checked, and what we haven’t
Areas covered
East of England
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.
Commercial EPC. A commercial (non-domestic) EPC rates the energy performance of a building such as a shop, office, warehouse or restaurant.
Overheating assessment. Part O of the Building Regulations requires new homes to be designed so they do not overheat in summer.
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