Glossary
What Is a Boiler Upgrade Scheme (BUS)? Plain-English Guide (2026)
Definition: UK government grant of up to £7,500 towards heat pump installation costs
Boiler Upgrade Scheme (BUS) Explained
The government heat pump grant is a UK government grant programme administered by a government body. It provides a one-off payment of up to £7,500 for air source heat pumps installed by qualified installers. The grant is applied as a discount at point of sale.
How Does a Boiler Upgrade Scheme (BUS) Work?
- Get quotes from qualified heat pump installers
- Installer checks your property meets government grant scheme eligibility criteria
- Installer applies up to £7,500 in grants as a discount on your invoice
- Installer claims reimbursement from the energy regulator directly
Pros and Cons of a Boiler Upgrade Scheme (BUS)
| Pros | Cons |
|---|---|
| up to £7,500 off the cost of a heat pump | Only available via qualified installers |
| Applied as instant discount — no upfront outlay for the grant | Property must have a valid EPC |
| Available across England and Wales | Does not cover the full cost of installation |
| Can be combined with other energy efficiency measures | Funding allocation may run out before scheme end date |
Frequently Asked Questions
What is a Boiler Upgrade Scheme (BUS)?
UK government grant of up to £7,500 towards heat pump installation costs
How does a Boiler Upgrade Scheme (BUS) work?
The government heat pump grant is a UK government grant programme administered by a government body. It provides a one-off payment of up to £7,500 for air source heat pumps installed by qualified installers. The grant is applied as a discount at point of sale.
Why is a Boiler Upgrade Scheme (BUS) important for homeowners?
Understanding boiler upgrade scheme (bus) helps you make informed decisions about energy improvements to your home and may affect the grants, savings and payback periods available to you.
Is a Boiler Upgrade Scheme (BUS) relevant to home energy improvements?
Yes — boiler upgrade scheme (bus) is a key concept in home energy improvements. It may affect system sizing, efficiency and eligibility for government grants and incentives.
Where can I learn more about boiler upgrade scheme (bus)?
You can find more information on renewable energy terminology and policy by searching online or consulting with a qualified installer in your area.