Is a Warm Homes Grant Worth It for a New Roof? (2026 UK)
Here's the honest answer most installers won't give you: Warm Homes schemes — the Warm Homes Plan, Warm Homes: Local Grant and ECO4 — fund energy-efficiency measures like loft, room-in-roof and wall insulation, plus heating upgrades. They will not pay to re-roof your house or replace worn tiles just because the covering is old. But loft and rafter insulation is commonly grant-funded — so the smart play is to combine grant-funded insulation with a privately-paid re-roof. This guide shows exactly what's covered, what isn't, and whether it's worth it.
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Is a Warm Homes grant worth it for a new roof?
- What IS covered: loft insulation, room-in-roof (rafter-level) insulation, cavity & solid-wall insulation, heating upgrades (heat pumps), and sometimes solar PV.
- What is NOT covered: full re-roofing, replacing worn or leaking tiles, new fascias/soffits/guttering, or cosmetic roof work. A grant will not re-roof an old but watertight roof.
- Grey area: where a roof must be opened to fit room-in-roof or rafter insulation, some directly-associated making-good can be covered — but the new roof covering itself is not.
- Who's eligible: income/benefit-based (ECO4, Warm Homes Plan) or low-EPC-band (D–G) plus council-area based (Warm Homes: Local Grant). Rules vary by scheme and council.
- Is it worth it? Yes for the insulation — it's often fully funded and cuts bills. No, if you expected it to pay for a re-roof: it won't.
Always verify: scheme rules change. Check gov.uk and your local council's Warm Homes: Local Grant page for current 2026 eligibility before assuming you qualify. All grant-funded installs must use a TrustMark-registered installer.
The honest take: a grant won't re-roof your house — but it can fund the part underneath
We get this question almost daily, and the disappointment is always the same: homeowners hear "Warm Homes grant" and "roof" in the same breath and assume the state will pay for a new roof. It won't. Warm Homes schemes — the Warm Homes Plan, the council-run Warm Homes: Local Grant, and Ofgem's ECO4 — exist to cut energy waste, not to maintain your building fabric. The funding follows the thermal measure: insulation and heating. A worn covering, slipped tiles, tired fascias or a leak that needs a re-roof are maintenance, and maintenance is on you.
But here's the part worth understanding. Loft insulation and room-in-roof (rafter-level) insulation are among the most commonly funded measures of all — frequently at no cost to an eligible household. If you have a converted or habitable loft, fitting rafter insulation means opening up the roof structure from inside, and the directly-associated making-good can sometimes be included. What is never included is the new tiles, membrane, battens and labour of an actual re-roof.
So the genuinely smart move, if your covering is failing and you're eligible for insulation funding, is to sequence the two jobs together. Have the grant-funded TrustMark installer fit the loft or rafter insulation, and have a private roofer re-roof at the same time — sharing one scaffold hire (worth £700–£1,800) and one access window. You pay only for the re-roof; the insulation is funded; and you avoid paying twice to strip and refit. Don't let anyone tell you the grant "covers the roof" — but don't walk away from genuinely free insulation either.
What a Warm Homes Grant Funds vs What You Pay (2026)
Grant values are indicative 2026 ranges and depend on the scheme, your EPC band, property type and council area. The re-roof figure is what you pay privately because it is not a fundable measure under any Warm Homes scheme.
Combining a Funded Insulation Job With a Private Re-Roof
- Grant-funded rafter/loft insulation (TrustMark installer): £0 to you if eligible
- Strip old covering & dispose: £900–£1,800 (private)
- New membrane, battens, tiles/slates: £3,000–£6,500 (private)
- Shared scaffold (one hire, both jobs): £700–£1,800 — saved vs two hires
- New fascias, soffits, guttering: £900–£2,200 (private, not grant-eligible)
- Roofing labour: £1,500–£3,500 (private)
- EPC reassessment after insulation: £60–£120 (often included in grant)
Net effect: the insulation is funded and the re-roof is private, but by sequencing both behind one scaffold you avoid paying for access twice.
7 Things to Check (and Ways to Get the Most From the Grant)
- Confirm the scheme and route first. Check whether you qualify via income/benefits (ECO4, Warm Homes Plan) or via low EPC band + council area (Warm Homes: Local Grant). Start at gov.uk and your local council page — rules differ and change.
- Get an up-to-date EPC. Most schemes target EPC bands D–G. An old or missing EPC can stall an application; a fresh assessment confirms which measures you can claim.
- Use only TrustMark-registered installers. Grant-funded work must be done by a TrustMark-registered, scheme-approved installer or the funding is void. Verify registration before any work starts.
- Claim the insulation — don't expect the re-roof. Loft and room-in-roof insulation are commonly fully funded; the new covering is not. Apply for the measure that's actually fundable rather than hoping for the roof.
- Sequence a private re-roof to share scaffolding. If your covering is failing, book the private re-roof to coincide with the funded rafter-insulation visit and split one scaffold hire (£700–£1,800 saved).
- Ask about associated making-good in writing. Where a roof is opened for rafter insulation, get the installer to confirm in writing exactly what reinstatement the grant covers — don't assume the covering is included.
- Stack measures while eligible. If you qualify, a heat pump and wall insulation may also be funded in the same package — far higher value than chasing a roof the grant will never pay for.
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Written by the BestBuilders Editorial Team. Last updated: 23 August 2026.