Boiler Upgrade Scheme: Up to £9,000 Heat Pump Grant

The grant is £7,500 for most air-to-water or ground source heat pumps, £2,500 for eligible air-to-air heat pumps, or £5,000 for eligible biomass boilers. £9,000 is available for air-to-water or ground source heat pumps replacing oil or LPG heating in eligible off-gas grid properties, for applications made from 21 July 2026 until 31 March 2027. The grant is applied as a discount by your installer.

No. For BUS applications made from 28 April 2026, a valid EPC is no longer required and there is no minimum EPC rating. If the property has a valid EPC, your installer will include its certificate number; otherwise they can provide alternative evidence. Outstanding insulation recommendations do not block an application.

Your MCS-certified installer applies directly to Ofgem on your behalf. You pay the net amount after the grant deduction. There is no separate application process for homeowners.

Yes. Ground source heat pumps usually qualify for £7,500, or £9,000 where they replace oil or LPG heating in an eligible off-gas grid property before the higher grant window closes on 31 March 2027. Eligible air-to-water heat pumps receive the same amounts. Eligible residential air-to-air heat pumps receive £2,500, and qualifying rural off-gas biomass boilers receive £5,000.

An expired or missing EPC is not itself grounds for rejection for applications from 28 April 2026. Applications can fail if the installer is not MCS-certified, the new system would replace existing low-carbon heating, or the property or product does not meet BUS rules. Ask your installer to check the decision with Ofgem and whether the issue can be corrected.

The £9,000 grant for eligible off-gas grid oil and LPG homes is available for applications properly made from 21 July 2026 through 31 March 2027. This is not the end date of the Boiler Upgrade Scheme: the government has committed BUS funding through 2029/30. Grant availability remains subject to scheme rules and budgets.