Last updated: 1 April 2026
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.
| Scheme | Worth Up To | Who Qualifies | Covers | Ends |
|---|---|---|---|---|
| ECO4 | £10,000+ | Benefits recipients, EPC D-G | Insulation, boilers, solar, heat pumps | Dec 2026 |
| Boiler Upgrade | £7,500 | Any homeowner with valid EPC | Heat pumps only | Mar 2028 |
| GBIS | £3,000-£5,000 | Council tax A-D, EPC D-G | Cavity wall & loft insulation | Mar 2026 |
| Warm Home Discount | £150 | Pension Credit / low income | Electricity bill discount | Annual |
| VAT Relief | 20% saving | All UK homeowners | Solar, heat pumps, insulation, batteries | Mar 2027 |
Grant values and end dates based on current government policy as of 1 April 2026. Subject to change — always verify at gov.uk.
UK homeowners can claim £1,000s in free government energy grants in 2026. The main schemes are: ECO4 (free insulation, boilers and solar panels for benefit recipients — average £4,200 per household), the Boiler Upgrade Scheme (£7,500 towards heat pumps), GBIS (free insulation for council tax bands A–D — closing March 2026), and the Warm Home Discount (£150 off electricity bills). Enter your postcode to check what you qualify for.
You should run the checker now if you receive benefits, own an older or poorly insulated home, are looking at a heat pump, or want to know whether ECO4, GBIS, or local council routes fit your property.
Useful next reads: grants for homeowners, grants for pensioners, and can you stack energy grants?.
UK energy grants are government-funded programmes that pay for home energy improvements — insulation, boilers, heat pumps, and solar panels — at no cost to eligible homeowners. Three main schemes operate in 2026:
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 December 2026.
Cavity wall and loft insulation for homes in lower council tax band energy grants. 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.
Use Great British Energy — enter your postcode to see which grants you qualify for. Free.
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