Boiler Replacements to Boost Your EPC Band
14 October 2026 | Leyton Landlord Certificates
The heating system accounts for a large proportion of the EPC calculation. Older non-condensing boilers score poorly compared to modern A-rated condensing models. Replacing an ageing boiler with a new condensing boiler and adding proper heating controls — including a programmer, room thermostat, and thermostatic radiator valves — can lift your rating significantly.
A new boiler is a larger investment, typically £1,500 to £3,000 installed, but it improves tenant comfort, reduces breakdown risk, and demonstrates landlord responsibility. Combine the boiler upgrade with a power flush and updated controls for the best EPC outcome. Keep your Gas Safe installation certificate for the assessor.
Leyton Landlord Certificates helps landlords across Leyton and London understand how heating upgrades affect EPC ratings. Call 0800 654 6211 to arrange an assessment after your boiler replacement.
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