The Boiler Upgrade Scheme (BUS) is the main UK-wide grant for heat pumps — open to most homeowners, with no income test, and available whether or not you qualify for the council-run Warm Homes: Local Grant. Following changes on 28 April 2026, it now covers £9,000 for off-grid oil and LPG homes on top of the standard £7,500.
The grant is applied automatically as a discount by your MCS-certified installer — you don't apply for it yourself. Read the official scheme rules on GOV.UK.
Scheme details on GOV.UK£7,500 towards the cost of a heat pump if your home is on mains gas. £9,000 if your home is off the gas grid and currently heated by oil or LPG — that higher rate took effect on 28 April 2026. Either way, the discount is applied to your installer's quote before you pay — it isn't a rebate you claim afterwards, and you don't get to choose which rate you receive; it depends on your existing heating system.
Since the April 2026 changes, air-to-air heat pumps qualify alongside air-to-water and ground source systems, and self-build properties are eligible for the first time.
You don't apply directly. An MCS-certified installer applies on your behalf as part of quoting your installation, and the £7,500 is deducted from what you're quoted. Installers registered for the scheme are marked BUS grant eligible on their listing in this directory.
If you're on a lower income or in certain postcodes, the council-run Warm Homes: Local Grant may cover more of the cost — read our guide to the Warm Homes: Local Grant to check.
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£7,500 for homes on mains gas switching to a heat pump. If your home is off the gas grid and currently heated by oil or LPG, the grant rose to £9,000 from 28 April 2026. Both amounts are deducted directly from your installer's quote — it's not a cash payment to you.
Most homeowners and small landlords in England and Wales with an existing fossil fuel heating system can apply — there's no income or property-value test. You'll need an installer who is MCS certified to carry out the work and submit the application on your behalf.
No. The requirement for a valid Energy Performance Certificate was removed on 28 April 2026, which makes applying more straightforward than it used to be.
Yes, as of the April 2026 changes. Previously the scheme only covered air-to-water and ground source systems; air-to-air heat pumps are now eligible too.
No. Your chosen MCS-certified installer applies on your behalf as part of quoting and installing the system. Look for the BUS-registered badge on a directory listing to find installers set up to do this.