Home / Grants / Energy Company Obligation (ECO4)
Winding downEnergy Company Obligation (ECO4)
Fully funded (supplier-funded) insulation & heating measures
Region: UK-wide · Last verified 2026-07-07
InsulationHeating system
Who is eligible?
Low-income / fuel-poor households on qualifying benefits, in less efficient homes (EPC D–G for owners; E–G for private tenants). Also reachable via the local authority 'LA Flex' route. Funded by energy suppliers, not government.
How to apply
Contact an obligated energy supplier, an approved installer, or your local council.
Could you get Energy Company Obligation (ECO4)?
Answer a few quick questions and we'll tell you what you're likely to qualify for — including this scheme.
Good to know
Ends 31 December 2026; many suppliers wound down new applications in early 2026. Focused on insulation and boiler upgrades, not heat pumps specifically. Great Britain only (not Northern Ireland).
Disclaimer: This is a plain-English summary, not financial advice. Grant terms change frequently — always confirm the current details on the official page above before acting.
Frequently asked questions
How much could I get from Energy Company Obligation (ECO4)?
Fully funded (supplier-funded) insulation & heating measures, based on the current published terms for this scheme. Grant values are reviewed periodically, so always confirm the current figure on the official page linked below before you budget for it.
How do I know if I qualify for Energy Company Obligation (ECO4)?
The criteria are summarised above under "Who is eligible?". For a quick, personalised read on your chances based on your property and current heating, use the free eligibility check on this page — it takes under a minute.
How do I actually apply for Energy Company Obligation (ECO4)?
Contact an obligated energy supplier, an approved installer, or your local council.
Can I combine Energy Company Obligation (ECO4) with other grants or schemes?
Sometimes — combining schemes is common but not guaranteed for every combination. Check the official guidance below, or ask a quoted installer, since they'll usually know what can be stacked together for your situation.
Does Energy Company Obligation (ECO4) cover air conditioning as well as heating?
Cooling-only air conditioning generally isn't grant-funded in the UK. Heat pumps that provide both heating and cooling are often eligible — see "Who is eligible?" above for the specifics of this scheme.