We provide the following services: SAP CALCULATIONS 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 SAP calculations for the Code for Sustainable Homes AIR PRESSURE TESTING Otherwise Known as Airtightness testing / Air tightness testing / Air leakage testing / Air permeability testing ENERGY PERFORMANCE CERTIFICATES


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