Renovating your home is exciting, but did you know that certain upgrades can impact your Energy Performance Certificate (EPC) rating? Whether you’re upgrading for comfort, style, or resale value, understanding how improvements affect energy efficiency is essential. This guide helps homeowners, landlords, and property developers make informed decisions that boost both EPC scores and long-term savings.

Learn more about our services and expertise on our About Us page.

Why EPC Matters During Renovations

An EPC measures how energy-efficient a property is based on insulation, heating, ventilation, and building materials. Renovations can either improve or inadvertently lower your rating.

Key reasons to consider EPC during renovations:

  • Compliance with legal requirements for rentals and sales

  • Increased property value and marketability

  • Reduced energy bills and carbon footprint

  • Avoiding unexpected EPC failures

Home Improvements That Boost EPC Scores

1. Loft, Wall, and Floor Insulation

Proper insulation reduces heat loss and improves energy efficiency:

  • Add loft insulation or upgrade to thicker boards

  • Install cavity wall insulation or solid wall upgrades

  • Use insulated flooring materials in extensions

These upgrades are often the fastest way to improve your EPC rating.

2. Energy-Efficient Heating Systems

Upgrading heating systems has a major impact:

  • Replace old boilers with A-rated condensing boilers

  • Install smart thermostats and programmable heating controls

  • Add thermostatic radiator valves (TRVs) for zoned heating

Book an assessment with our EPC Assessors London to evaluate how heating changes affect your rating.

3. Windows and Glazing

Energy-efficient windows help retain heat:

  • Fit double or triple glazing

  • Use Low-E glass to reduce heat loss

  • Ensure proper sealing and alignment to avoid draughts

4. Renewable Energy Solutions

While not always mandatory, renewables complement energy efficiency:

  • Solar panels or solar water heating

  • Heat pumps for sustainable heating

  • Battery storage for renewable energy

5. Minor Fixes That Make a Difference

Even small improvements help:

  • Draught-proof doors, windows, and loft hatches

  • Lag hot water tanks and pipes

  • Replace inefficient lighting with LEDs

Potential EPC Pitfalls for Renovators

Renovations can sometimes lower your EPC score if not carefully planned:

  • Removing insulation during extensions

  • Installing inefficient heating or cooling systems

  • Using materials with poor thermal performance

A professional EPC assessor can guide you to avoid these pitfalls.

Professional EPC Assessment for Renovators

Certified Domestic Energy Assessors (DEAs) can:

  • Identify which renovations will improve your rating

  • Provide actionable recommendations

  • Ensure EPC compliance for sales or rentals

Book a professional assessment through our Booking Page.

Contact Us for EPC Guidance

Have questions about renovations and EPC impact?
Reach out via our Contact Page for expert advice and tailored solutions.

Email:info@epcrate.co.uk

Phone:020 34884142