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SAP Calculations for New Build Dwellings

Part L1A Compliance

- New build DER / TER Calculations
- On Construction Energy Performance Certificates (EPCs)

SAP Calculations for Conversion Projects

Part L1B Compliance

- As Built SAP Calculations
- On Construction Energy Performance Certificates (EPCs)

SAP Calculations for Extensions

Part L1B Compliance

Heat Loss Assessments for Highly Glazed Extensions

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