UK homeowners have access to three main grant streams in 2026: the £7,500 Boiler Upgrade Scheme (everyone qualifies), ECO4 for low-income households, and the Home Upgrade Grant (HUG2) for off-gas-grid properties. Stacked, these can cover the full cost of a heat pump install.
Boiler Upgrade Scheme; £7,500
Open to all homeowners in England and Wales replacing fossil-fuel heating with an air source heat pump. No income cap. Applied by the installer at point of quote, so the headline price drops directly.
ECO4; fully funded for eligible households
If you receive certain means-tested benefits or live in a low-income household, ECO4 covers up to 100% of install cost. Apply via your energy supplier or an ECO4-registered installer.
Home Upgrade Grant (HUG2)
For off-gas-grid homes with EPC D–G, administered by district councils across the UK. Average grant £15,000–£25,000 covering heat pump, insulation and solar.
Local top-ups
Nottingham City Council, Leicestershire and Lincolnshire each run periodic top-up schemes for low-EPC homes; check with your district council before applying.
See what installers in your area would actually charge.
Get matched quotesFrequently asked questions
Can I claim BUS and ECO4 together?+
No; they're alternatives. ECO4 is more generous if you qualify; BUS is open to everyone.
How long does the BUS application take?+
Your installer handles it. From quote acceptance to grant approval is usually 2–4 weeks.