There are different amounts of funding depending on what heating system you install:
Location notice
Please note that this page contains information and links most relevant for people living in England, Wales.
At a glance
- The Boiler Upgrade Scheme is a grant for people in England and Wales to get up to £7,500 off a low carbon heating system.
- Homeowners and small business owners with a fossil fuel heating system are eligible.
- Installations must be carried out by an MCS-certified installer.
Written by Jamie Gibbs
The Boiler Upgrade Scheme (BUS) is a UK Government grant that helps lower the cost of installing a low carbon heating system such as a heat pump.
Since May 2022, there have been over 100,000 applications for the Boiler Upgrade Scheme). There were over 3,500 applications in February 2026 alone.
This is what you need to know about the Boiler Upgrade Scheme, including:
- How much you could get.
- Who is eligible.
- How you apply.
How much funding can I get with the Boiler Upgrade Scheme?
| Heating system | Grant amount |
|---|---|
| Air source heat pump | £7,500 |
| Ground source heat pump | £7,500 |
| Water source heat pump | £7,500 |
| Air to air heat pump | £2,500 |
| Biomass boiler | £5,000 |
Extra funding for off-gas grid properties (July 2026 to March 2027)
The Boiler Upgrade Scheme grant is temporarily increasing for eligible homes and small businesses in England and Wales who rely on heating oil or LPG.
From 21 July 2026 to 31 March 2027, eligible off-gas grid properties can get a £9,000 grant for air source or ground source heat pumps.
You should speak to your installer to find out more about how to apply for the grant.
Future funding updates
In the future, you’ll be able to get:
- A heat battery: £2,500 off cost and installation.
- An exhaust air heat pump.
Who is eligible for the Boiler Upgrade Scheme?
The grant is available for homeowners and small business owners in England and Wales.
To be eligible, you’ll need to:
- Own your home or small business.
- Currently have a fossil fuel heating system (such as a gas boiler) or an electric heating system without a heat pump.
- Ensure your installer is certified by the Microgeneration Certification Scheme (MCS). They also need to be a member of an approved consumer code such as the Renewable Energy Consumer Code (RECC) or HIES Consumer Code.
For biomass boilers, you’re only eligible if the property is in a rural location and not connected to the gas grid.
For more information on eligibility, visit the GOV.UK website.
How do I apply for the Boiler Upgrade Scheme?
You don’t apply for the grant directly. Instead, the installer applies for the grant on your behalf. Here’s what to do:
- Find an MCS certified installer in your area who can carry out the work. We recommend you get quotes from at least three different installers to make sure you’re getting good value.
- The installer will tell you if you’re eligible for a BUS grant.
- Agree a quote with your installer. They‘ll deduct the value of the grant upfront as part of the quote.
- The installer will apply for the grant and carry out the work.
For more information on the process, see our step-by-step guide to getting a heat pump.
Common Boiler Upgrade Scheme questions
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Energy Saving Trust is authorised and regulated by the Financial Conduct Authority (716195) and delivers the Home Energy Scotland Grant and Loan mentioned on this page via Home Energy Scotland on behalf of Scottish Government. Loans are subject to eligibility and terms and conditions.