How much is the Boiler Upgrade Scheme grant in 2026?

£7,500 for an air source or ground source heat pump. £5,000 for a biomass boiler. £2,500 for an air-to-air heat pump or heat battery. Those figures come straight off your quote, so you only pay the difference.

Do I need to insulate my home first?

Not any more. The insulation prerequisite was scrapped in April 2026, which removed the single biggest barrier that was blocking people from applying. Previously you needed to meet minimum loft and cavity wall standards before you could even get a voucher. That rule is gone.

Who actually applies for the grant?

Your MCS-certified installer does everything. They submit a voucher application to Ofgem, Ofgem approves it (usually within a few weeks), and the grant amount gets deducted from your invoice. You pay the remaining balance. That's it.

Can I get the BUS grant if I have a combi boiler?

Yes. The scheme is specifically designed for replacing fossil fuel systems. Gas combi boilers, oil boilers, LPG systems, electric storage heaters, coal. If you're already on a heat pump, you don't qualify because there's nothing to replace.

When does the Boiler Upgrade Scheme end?

It's funded through to 31 December 2027, with Ofgem confirming operational extensions into 2028. The budget for 2025/2026 sits at £295 million, with increases confirmed in the Spring Statement. No sign of it running out of money.

Open

Until 31 March 2030

Last reviewed: April 2026By Eco Home Check Editorial Team

Boiler Upgrade Scheme

£7,500 off a heat pump. Your installer applies, Ofgem processes it, and the grant comes straight off your bill. Funding is confirmed through fiscal year 2029/30 under the Warm Homes Plan.

Grant amount

Up to £7,500

£7,500 ASHP / £7,500 GSHP / £5,000 biomass / £2,500 A2A / £2,500 heat batteries

Am I eligible?

Most homeowners in England and Wales qualify. The eligibility bar is lower than people expect.

You need to own the property (or be a landlord), and you need to be replacing a fossil fuel heating system. Gas boiler, oil boiler, LPG, electric storage heaters, coal. If your current system runs on fossil fuels, you're in. If you're already on a heat pump, you're not, because there's nothing to replace.

Boiler Upgrade Scheme

Am I eligible?

Check if you qualify for the Boiler Upgrade Scheme

How much do you get?

How do I apply?

What's the catch?

Key Details

Frequently Asked Questions

How much is the Boiler Upgrade Scheme grant in 2026?

Do I need to insulate my home first?

Who actually applies for the grant?

Can I get the BUS grant if I have a combi boiler?

When does the Boiler Upgrade Scheme end?

Source

Related Grants

Guides and further reading

Technology	Grant
Air source heat pump (ASHP)	£7,500
Ground source heat pump (GSHP)	£7,500
Biomass boiler	£5,000
Air-to-air heat pump	£2,500
Heat battery	£2,500