Welcome to SAPCalcUK, a family-run business dedicated to helping homeowners, self-builders, developers, and architects navigate the complexities of domestic building regulations.

We offer new build SAP calculations & EPC’s in accordance with Part L of the building regulations, compliance reports for Over-Glazed extensions, simple method overheating calculations for Part O and water efficiency calculations for Part G.

Through our partner firm we are also able to offer Air Tightness Testing for Part L and Ventilation Testing for Part F and SBEM Assessments.

As a family business, we pride ourselves on a personal, responsive service. We take the time to understand your project, answer your questions, and deliver solutions tailored to your needs.

Get in touch today — we look forward to working with you.