Callum Martin Energy
Based in Not stated · Covers London, Essex, Hertfordshire and CambridgeServices
| Service | Regulation | Price |
|---|---|---|
| SAP calculations | Part L | Ask for a quote |
| Air tightness testing | Part L | Ask for a quote |
| Water efficiency calculations | Part G | Ask for a quote |
| Ventilation commissioning | Part F | Ask for a quote |
| Retrofit assessment | PAS 2035 | Ask for a quote |
Services listed on Signed Off. The provider may offer others.
About
Energy assessment business offering PAS 2035 retrofit assessments for homeowners, plus SAP and water efficiency calculations, air tightness testing and ventilation commissioning. It covers London, Essex, Hertfordshire and Cambridge.
Details taken from the provider’s website on 25 September 2026.
What we’ve checked
Areas covered
Covers London, Essex, Hertfordshire and Cambridge
London East of England
Compare other providers
SAP calculations in LondonSAP calculations in East of EnglandAir tightness testing in LondonAir tightness testing in East of EnglandWater efficiency calculations in LondonWater efficiency calculations in East of EnglandVentilation commissioning in LondonVentilation commissioning in East of EnglandRetrofit assessment in LondonRetrofit assessment in East of England