UK 2026 / May 2026

UK boiler grants 2026

Two main UK schemes can substantially reduce or eliminate the cost of replacing your boiler in 2026: ECO4 (free or subsidised boiler for qualifying households) and the Boiler Upgrade Scheme (GBP 7,500 grant for a heat pump, not a gas boiler). Plus the Warm Home Discount and local authority schemes for additional support.

The two main schemes

ECO4 scheme

Free boiler possible

Free or heavily subsidised boiler replacement for households on qualifying benefits (Universal Credit, Pension Credit, ESA, JSA, Child Tax Credit, etc.) in an EPC band D, E, F or G property. Funded by large energy suppliers under Ofgem obligation.

Full eligibility guide →

Boiler Upgrade Scheme

GBP 7,500

GBP 7,500 grant for air source or ground source heat pumps. GBP 5,000 for biomass boilers in rural off-grid properties. Heat pumps only, not gas boilers. England and Wales. Applied by the MCS certified installer.

Full BUS guide →

Other support routes

Warm Home Discount

GBP 150 one-off discount on your winter electricity bill, applied by your energy supplier. Eligibility tied to Pension Credit Guarantee Credit (Core Group) or low income + high energy costs (Broader Group). Not a boiler grant but reduces overall heating cost burden. gov.uk/the-warm-home-discount-scheme

Local authority grants

Many UK local councils offer their own boiler / energy efficiency grants funded via Home Upgrade Grant (HUG2) or LADS (Local Authority Delivery Scheme). Eligibility varies by council; often means-tested. Find your local council at gov.uk/find-local-council.

Home Upgrade Grant (HUG2)

For off-gas-grid homes with energy bills over GBP 1,500 per year on EPC D-G with low income. Funded centrally by DESNZ and delivered by local authorities. Includes insulation + heat pump + low-carbon heating.

GBE-Help to Heat / Scotland equivalent

Devolved equivalents in Scotland (Home Energy Scotland Grant + Loan), Wales (Nest scheme), Northern Ireland (Affordable Warmth + Boiler Replacement Scheme). Each has its own eligibility rules; start at your devolved government's energy efficiency page.

Not grant-eligible? See finance options for 0% spread-cost routes from GBP 30/month.