The UK government funds several schemes that can cover the full cost of insulation, heat pumps, and boiler replacements. Check which grants you qualify for — it takes 30 seconds.
Each scheme targets different households and improvements. Many homeowners qualify for more than one.
Free insulation, boiler replacements, and heating upgrades for low-income and vulnerable households. Runs until March 2026.
Cavity wall and loft insulation for homes in lower council tax bands. No benefits required — wider eligibility than ECO4.
Grants towards air source and ground source heat pumps. Your MCS-certified installer applies on your behalf. Extended to 2028.
The Energy Company Obligation (ECO4) requires large energy suppliers to fund energy efficiency improvements in eligible homes. It's the largest domestic energy efficiency scheme in the UK, covering everything from loft insulation to first-time central heating systems.
Formerly known as ECO+, GBIS specifically targets insulation upgrades. The eligibility criteria are broader than ECO4 — you don't need to be on benefits. If your home is in a lower council tax band, you could get free or heavily subsidised insulation.
The Boiler Upgrade Scheme (BUS) provides upfront capital grants to help homeowners replace fossil fuel heating with low-carbon alternatives. The £7,500 grant significantly reduces the cost of installing an air source or ground source heat pump.
Common questions about ECO4, GBIS, and the Boiler Upgrade Scheme. Can't find your answer? Enter your postcode and we'll help.
Enter your postcode to see which grants you qualify for. Free.