Find EPC Upgrade Installers
Search for TrustMark-registered and MCS-certified retrofit specialists who can help bring your property to EPC C — and handle grant applications.
Why use certified installers?
TrustMark registered
Government-endorsed quality scheme. Work is backed and quality-checked.
MCS certified
Required to install heat pumps, solar panels, and claim Boiler Upgrade Scheme grants.
Grant applications
Certified installers can apply for ECO4 and GBIS grants on your behalf — free works for eligible properties.
Warranty & insurance
TrustMark works come with deposit protection and 6-year warranty backed insurance.
Browse by trade
Enter your postcode above, or click a trade to find local specialists.
🏠 Loft insulation
🧱 Cavity wall insulation
🏗 External wall insulation
♨️ Heat pump installation
🔥 Boiler replacement
☀️ Solar panels
🪟 Double glazing
💨 Draught proofing
🌡 Heating controls
🏡 Underfloor insulation
⬆ Roof insulation
🔧 General retrofit
Are you a retrofit installer?
List your business in our directory for free. Landlords looking for certified installers in your area can find you and send enquiries directly.
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✓ Direct enquiries