The Boiler Upgrade Scheme (BUS) offers £7,500 grants for installing air-source or ground-source heat pumps. Here’s how to apply and claim the full amount.
Eligibility Requirements
- Own property in England or Wales
- Building energy rating D or better (or exemption)
- Boiler being replaced (can be broken)
- Property must be a dwelling (not commercial)
- Landlords eligible but not occupied for rent (owner-occupied only)
The £7,500 Grant
Fixed amount regardless of system size. Covers both air-source and ground-source heat pumps. Cannot be combined with other government heating grants.
Step-by-Step Application
- Check Eligibility: Use the eligibility checker at gov.uk/boilerupgradescheme
- Get EPC Certificate: If rating below D, you may be exempt. Provide proof.
- Get Quote from MCS Installer: Only registered installers can administer the grant
- Submit Application: Installer submits on your behalf with EPC and quote
- Receive Grant Approval: Takes 2-4 weeks. Receive approval reference.
- Installation: MCS installer carries out work (1-3 weeks)
- Claim Grant: Installer submits final certification. Grant paid direct to installer.
What the Grant Covers
- Heat pump unit and installation labour
- Refrigerant and piping
- Control systems and thermostats
- Basic electrical work (not full rewiring)
What’s NOT Covered
- Radiator upgrades (if needed separately)
- Hot water cylinder replacement
- Building structural work
- Electrical upgrades beyond basic requirements
- Underfloor heating retrofits
Timeline: From application to completion takes 2-3 months. Application approval 2-4 weeks. Installation 1-3 weeks. Final certification 1-2 weeks.
MCS Certification Requirement
Your installer MUST be MCS certified to administer the grant. Check the MCS register. This certification ensures proper installation, warranty coverage, and future eligibility for other incentives.
Total Investment Required
| System Type | Typical Cost | After Grant | Payback Period |
|---|---|---|---|
| Air Source Only | £9,000-£14,000 | £1,500-£6,500 | 10-15 years |
| Air Source + Radiators | £12,000-£18,000 | £4,500-£10,500 | 12-18 years |
| Ground Source Only | £18,000-£35,000 | £10,500-£27,500 | 15-25 years |
Claim Your £7,500 Grant
Get quotes from MCS-certified heat pump installers who can administer your grant.