BUS Grant Eligibility Checker

The Boiler Upgrade Scheme (BUS) is a UK government grant programme that provides £7,500 towards the cost of installing an air source heat pump, ground source heat pump, or (from April 2026) an air-to-air heat pump or heat battery. It was introduced to make low-carbon heating more affordable for homeowners. The scheme is administered by Ofgem and runs until 31 December 2027.

To qualify for the £7,500 BUS grant, your property must meet all of the following criteria:

• The property is in England, Scotland, or Wales (Northern Ireland has a separate scheme)
• The property currently has a fossil fuel heating system (gas, oil, LPG) or electric storage heaters
• No heat pump has been installed at the property before
• The property is not a new build without an existing heating system
• The installation is carried out by an MCS-certified installer

Rental properties and second homes can also qualify. There is no income limit for the BUS grant.

You do not apply for the BUS grant yourself. Your MCS-certified installer applies on your behalf. The process works as follows:

1. You get quotes from MCS-certified installers. Always get at least two quotes.
2. Your installer checks your property meets the eligibility criteria.
3. You agree to proceed. Your installer applies to Ofgem for a voucher before installation begins.
4. Ofgem approves the voucher. The installer then completes the installation.
5. The £7,500 grant is deducted from your invoice. You only pay the net amount.

MCS (Microgeneration Certification Scheme) is the UK's quality standard for renewable energy and low-carbon heating installers. Only MCS-certified installers can apply for the BUS grant. Using an MCS-certified installer also means you get a warranty and your system is eligible for the Smart Export Guarantee (for solar installations). You can check if an installer is MCS-certified at mcscertified.com.

From April 2026, the BUS grant was expanded to include:

• Air-to-air heat pumps — previously excluded, now eligible for £7,500
• Heat batteries — thermal storage devices that work with electricity and renewables, now eligible for £7,500

The BUS grant amount remains at £7,500 for all qualifying technologies. The scheme deadline is 31 December 2027.