Gradwell Group
Based in Doncaster, South Yorkshire · Covers England-wideAccreditation not yet checkedNot yet claimed
Own websiteUK-wide
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 |
| Sound insulation testing | Part E | Ask for a quote |
| Water efficiency calculations | Part G | Ask for a quote |
| Ventilation commissioning | Part F | Ask for a quote |
Services listed on Signed Off. The provider may offer others.
About
Compliance company with its head office in Doncaster offering new-build SAP calculations and EPCs, air tightness, sound and ventilation testing, and water usage calculations. It states it provides England-wide coverage.
Details taken from the provider’s website on 25 September 2026.
What we’ve checked
AccreditationNot stated on their website and not yet checked.
Company statusLimited company. Companies House check pending.
InsuranceNot yet checked. Ask to see professional indemnity insurance before you book.
Areas covered
Covers England-wide
UK-wide Yorkshire and the Humber
Compare other providers
SAP calculations in Yorkshire and the HumberOn-construction EPC in Yorkshire and the HumberAir tightness testing in Yorkshire and the HumberSound insulation testing in Yorkshire and the HumberWater efficiency calculations in Yorkshire and the HumberVentilation commissioning in Yorkshire and the Humber