Why ECO4 matters in Scotland
The Scottish House Condition Survey gives the scale of the problem ECO4 is aimed at. In 2023:
| Scottish House Condition Survey 2023 | Figure |
|---|---|
| Homes rated EPC band C or better | 56% (52% in 2022) |
| Households in fuel poverty | 34%, around 861,000 households |
| Households in extreme fuel poverty | 19.4%, around 491,000 households |
| Fuel poverty among households heating mainly with electricity | 52% (gas 32%, oil 26%) |
Sources: gov.scot, Scottish House Condition Survey 2023: Key Findings (published 28 Jan 2025). Checked 30 October 2026.
Put simply, more than four in ten Scottish homes sat below EPC band C in 2023, and around a third of households were in fuel poverty. Homes heated mainly by electricity were the most likely to be fuel poor. Those are exactly the households and homes ECO4's rules are written for.
The ECO4 rules in Scotland
The core rules are GB-wide. Someone in the home gets one of the eight qualifying benefits listed on GOV.UK (Universal Credit, Pension Guarantee Credit, Pension Savings Credit, Income Support, income-based JSA, income-related ESA, Child Benefit or Housing Benefit), or the council refers the household through ECO4 Flex. The home then needs a low enough EPC rating: D to G if you own it, E to G if you rent privately (with the owner's permission). Social housing rated E to G may get insulation or first-time heating. Scottish homes have their own EPC register, the Scottish EPC Register. Full detail is on our ECO4 eligibility page.
ECO4 Flex in Scotland: what is different
ECO4 Flex works the same way in Scotland as elsewhere (see ECO4 LA Flex), with two Scottish details in Ofgem's local authority guidance:
- Deprivation proxy. Route 2's first proxy, living in a deprived area, uses the Scottish Index of Multiple Deprivation 2020: a "data zone" in the first, second or third decile. In England and Wales it uses the 2019 indices instead.
- Medical referrals. Route 3 accepts a referral from a GP or a Scottish Health Board for someone with a cardiovascular condition, respiratory disease, limited mobility or immunosuppression made worse by the cold.
Sources: Ofgem LA guidance v3.0, sections 7-8. Checked 30 October 2026.
Scottish councils and Statements of Intent
Each council that takes part in ECO4 Flex publishes its own Statement of Intent, and they differ. As one example, Renfrewshire Council's statement uses all four Flex routes and says households should apply through Home Energy Scotland/Renfrewshire Council or an ECO installer. It also says the final decision rests with the ECO supplier and its contractors, and that eligibility does not guarantee funding. Before you rely on Flex, find your own council's current statement on its website.
Sources: Renfrewshire Council, ECO4 Flex Statement of Intent (v1.0). Checked 30 October 2026.
ECO4 and the Scottish Government's own schemes
ECO4 is funded by energy suppliers across Great Britain. Scotland also has schemes funded by the Scottish Government, and they are separate. Home Energy Scotland, delivered by Energy Saving Trust and Net Zero Scotland, points households to the Home Energy Scotland Grant and Loan and to Warmer Homes Scotland, and mygov.scot says Home Energy Scotland could help you access funding for energy-saving improvements. Ofgem itself points people in Scotland to Home Energy Scotland for advice. If you might qualify for more than one scheme, remember Ofgem's rule that ECO4 funding cannot be blended with other government grants for the same measures.
Sources: Home Energy Scotland, funding; mygov.scot, energy saving funding (updated 28 Oct 2026); Ofgem, homeowners and tenants. Checked 30 October 2026.
How to apply for ECO4 in Scotland
- Check the home's rating on the Scottish EPC Register.
- If someone gets a qualifying benefit, contact an obligated energy supplier (any of them) or an ECO installer working for one.
- If not, read your council's ECO4 Flex Statement of Intent and use the route it describes: council, Home Energy Scotland, or an installer.
- Expect a retrofit assessment, then a contract. Check the installer on the TrustMark register and ask in writing whether you will be asked to contribute.
The checker on this page is pre-set to Scotland. Your likely route shows as you answer, and we reply by email. See how to apply for ECO4 for the general steps.
Timing
Ofgem says ECO4 runs until 31 December 2026, and its dates are framed around when measures are installed. With an assessment and a contract needed first, start now rather than in December. See is ECO4 still available for the dated position.
ECO4 in Scotland: questions
Does ECO4 apply in Scotland?
Yes. Ofgem describes ECO as a government energy efficiency scheme in Great Britain, so ECO4 applies in Scotland with the same core rules as in England and Wales. It runs until 31 December 2026.
How do I apply for ECO4 in Scotland?
Contact an obligated energy supplier, an ECO installer, or your council about its ECO4 Flex scheme. Renfrewshire Council's Statement of Intent, for example, says households should apply through Home Energy Scotland/the council or an ECO installer.
Is ECO4 the same as Warmer Homes Scotland?
No. Warmer Homes Scotland is a Scottish Government programme; ECO4 is a GB-wide scheme funded by energy suppliers. Home Energy Scotland can advise on Scottish Government schemes.
Can a Scottish GP refer me for ECO4 Flex?
Route 3 of ECO4 Flex accepts referrals from a GP or a Scottish Health Board for someone whose health condition is made worse by the cold.