Boiler Upgrade Scheme (BUS)
The Boiler Upgrade Scheme (BUS) provides a fixed grant to help homeowners in England and Wales transition from fossil fuel boilers to low-carbon heating systems, specifically air source heat pumps and ground source heat pumps.
Grant amounts
You can get:
- £7,500 towards an air source heat pump
- £7,500 towards a ground source heat pump (including water source)
- £5,000 towards a biomass boiler (only in rural areas and for properties not suitable for a heat pump)
Eligibility
To be eligible for the grant, you must:
- be a homeowner or small business owner
- own a property in England or Wales
- be replacing an existing fossil fuel system (such as gas, oil, or direct electric)
Property requirements
- The property must have a valid Energy Performance Certificate (EPC).
- The EPC must not have any outstanding recommendations for loft or cavity wall insulation. If it does, you must carry out these improvements before applying.
- New build properties are generally not eligible, unless they are custom-built.
How to apply
You do not apply for the grant yourself. The process is led by your installer:
- Find an MCS-certified installer and get a quote.
- The installer will check if your property is eligible.
- The installer applies to Ofgem for the grant voucher.
- Once approved, the grant value is deducted from your final bill.
You can check if you’re eligible for the Boiler Upgrade Scheme on GOV.UK.
The grant is “first come, first served” based on the available government budget. It is currently scheduled to run until March 2028.