An Energy Performance Certificate (EPC) provides a detailed assessment of a building’s energy efficiency and environmental impact. During the evaluation, a certified assessor will inspect a range of features that affect the building’s energy usage. Here’s what’s typically reviewed:

🔍 Key Components Evaluated in an EPC

1. Building Construction

   • Type of walls, floors, and roofing materials

   • Presence of insulation and its thickness

   • Thermal efficiency of materials used

2. Heating Systems

   • Type of central heating (e.g. gas, electric, oil)

   • Boiler age and efficiency

   • Radiators and controls (thermostats, TRVs)

3. Hot Water System

   • Cylinder insulation

   • Type of water heating and controls

   • Secondary water heating sources

4. Windows and Glazing

   • Double or single glazing

   • Frame materials and thermal performance

5. Lighting

   • Number of energy-efficient bulbs

   • Type and efficiency of lighting installed

6. Ventilation and Air Tightness

   • Natural or mechanical ventilation

   • Draught-proofing and air leakage levels

7. Renewable Technologies

   • Solar panels (PV and thermal)

   • Heat pumps, biomass, or wind energy systems

📊 Final EPC Rating

Once all components are assessed, your property is given:

• An Energy Efficiency Rating (from A–G, where A is most efficient)

• An Environmental Impact Rating, reflecting CO₂ emissions

🔗 Visit our Residential EPC, Same-Day EPC pages to see how you can improve your rating.

Why It Matters

Understanding these factors helps:

• Lower energy bills

• Increase property value

• Meet legal compliance for sales or rentals

• Reduce your carbon footprint

📞 Need an EPC fast?
Call Urgent EPC on +44 7741 812 864 or book online today for same-day appointments across London and Greater London.