Boiler Upgrade Scheme
England and Wales. Eligible owners and landlords apply through an MCS-certified installer. The base air-to-water or ground-source grant is £7,500; an extra £1,500 applies to oil/LPG homes without a mains gas connection until March 2027. Air-to-air receives £2,500 and eligible rural off-gas-grid biomass receives £5,000. New fossil-fuel hybrid installations are excluded. Most new builds and social housing are excluded. From 28 April 2026 a valid EPC is no longer required for BUS, though an existing valid certificate number must be provided. Outstanding insulation recommendations are not an eligibility barrier. Funding is confirmed through fiscal year 2029/30 under the Warm Homes Plan, not a guaranteed application deadline.
Grant amount
Up to £9,000
£7,500 air-to-water or ground-source; £9,000 replacing oil/LPG off the gas grid until March 2027; £2,500 air-to-air; £5,000 biomass
Am I eligible?
Most homeowners in England and Wales qualify. The eligibility bar is lower than people expect.
You need to own the property (or be a landlord), and you need to be replacing a fossil fuel heating system. Gas boiler, oil boiler, LPG, electric storage heaters, coal. If your current system runs on fossil fuels, you're in. If you're already on a heat pump, you're not, because there's nothing to replace.