Tophouse Assessments Limited

Tophouse was founded in 2007, in Chatham Kent,  in response to the changing regulatory environment concerning the use of energy in buildings in the UK. Our small size allows us to keep our prices low and provide a personal service. We are a green company committed to creating a sustainable world for our children. We offer the following services:

SAP Calculations (Part L)

We can help with SAP Calculations for new building plans to pass Building Regulations Part L1A (UK England and Wales), SAP calculations for Extensions, Material Alterations and Over Glazed structures and analysis to L1B, and SAP calculations for the Code for Sustainable Homes. Find out more about our SAP Calculations service

Air Pressure Testing

Otherwise known as airtightness testing, air tightness testing, air leakage testing and air permeability testing – we provide a guaranteed domestic air pressure testing service for compliance with Building Regulation L1A for new homes on completion. Find out more about our Air Pressure Testing service

Energy Performance Certificates

We provide EPCs for existing dwellings for sale or for rental – with a fast same-day service – and EPCs for new dwellings on completion and PEAs – full SAP calculations. Find out more about our Energy Performance Certificates service

Glazed Extensions

We have a 100% record in getting over glazed extensions to pass Building Regulations. Find out more about our Glazed Extensions service