Every UK Home Renovation Grant in One Place: The Complete 2026 Guide

The short answer

In 2026 the UK runs nine separate national renovation subsidy schemes plus a 0% VAT relief on energy-saving installations. They are funded by three different government departments and an energy-supplier levy, they have different eligibility tests, and they almost never appear on the same page on gov.uk. Which is why most homeowners qualify for between £5,000 and £15,000 of support they never claim.

The fastest filter is this: if your home is off the mains gas grid, has an EPC of D or worse, and your household income is under £36,000, you are eligible for the largest grants in the country (HUG2, Warmer Homes, ECO4 Flex). If you’re on the gas grid but switching to a heat pump, the Boiler Upgrade Scheme pays a flat £7,500 with almost no eligibility filter beyond owning the property. If a household member has a disability or age-related need, the Disabled Facilities Grant pays up to £30,000 (and sometimes substantially more) for accessibility adaptations — entirely separately from the energy schemes.

1. Boiler Upgrade Scheme (BUS) — £7,500 for a heat pump

The Boiler Upgrade Scheme is the UK’s simplest and largest universally-available grant. Run by Ofgem on behalf of the Department for Energy Security and Net Zero (DESNZ), it pays a flat £7,500 toward an air-source or ground-source heat pump installation, and £5,000 toward a biomass boiler in rural off-gas-grid properties. The grant is paid as a voucher to the installer, who deducts it from your invoice — you never handle the cash.

Eligibility is unusually relaxed for a UK scheme. You must own the property (owner-occupiers and private landlords both qualify); the property must have a valid EPC issued within the last 10 years with no outstanding loft insulation or cavity wall recommendations (insulate first, then apply); and the installation must be carried out by an MCS-certified installer. There is no income test, no Council Tax band restriction, and no regional limit.

The scheme runs to March 2028 with a committed budget of £1.5 billion for the 2025–2028 period. Vouchers expire 3 months from issue, so you cannot speculatively bank the grant. Typical full installed cost of an air-source heat pump for a 3-bed UK home in 2026 is £11,000–£15,000 including radiator upgrades, hot water cylinder and controls. After the BUS grant your net cost is therefore £3,500–£7,500, comparable to a high-end replacement gas boiler installation.

The single most common reason BUS applications fail in 2026 is missing loft or cavity wall insulation recommendations on the EPC. The fix is to install the insulation first — often free under ECO4 or GBIS — then re-issue the EPC, then apply for BUS. This is the most common stacking pattern we see in the grant-finder tool.

2. ECO4 — the energy-supplier obligation

The Energy Company Obligation, fourth iteration (ECO4), runs from April 2022 to March 2026 with a Government-mandated £4 billion of supplier spending. Obligated energy suppliers — every supplier with over 150,000 domestic customers, which in practice means British Gas, Octopus, EDF, E.ON, OVO and ScottishPower — must deliver energy efficiency measures to qualifying low-income and vulnerable households. The Warm Homes Plan is expected to roll forward ECO4 or replace it with a successor scheme from April 2026 onward.

ECO4 funds whole-home retrofit rather than single measures. A typical ECO4 project replaces a non-condensing boiler, fits cavity-wall insulation, tops up loft insulation, and may include solid wall insulation, room-in-roof insulation, and underfloor insulation. Average award value is £5,000–£15,000; some external wall insulation packages exceed £20,000.

Eligibility under the default ECO4 route requires receipt of a qualifying means-tested benefit (Universal Credit, Pension Credit, Income Support, income-based JSA or ESA, Child Tax Credit, Working Tax Credit, or Housing Benefit). The property must have an EPC of D, E, F or G. There is no Council Tax band restriction under ECO4 default.

ECO4 Flex is the local-authority referral route: councils can refer households outside the default benefit list provided they meet a defined vulnerability or income criterion (typically household income under £36,000, or a member with a long-term health condition exacerbated by cold). Roughly 40–50% of all ECO4 spending in 2025 came through the Flex route. The application is made via your local council or, more commonly, through an obligated installer who will run the eligibility check for you.

3. Home Upgrade Grant 2 (HUG2) — £25,000 for off-gas-grid retrofit

The Home Upgrade Grant is the most generous grant for homeowners, but the eligibility is narrow: it targets off-gas-grid households with an EPC of D, E, F or G and a combined household income below £36,000. Phase 2 of HUG runs to March 2026; a successor scheme is being absorbed into the Warm Homes Plan.

Award value is up to £25,000 per property (the headline cap was raised from £15,000 in 2024). Funding is delivered through Local Authority Delivery Partners — in many regions a consortium of councils. The installation is typically managed by the delivery partner end-to-end: they survey the property, propose the measures, procure the installer, and pay the bill directly. The homeowner never handles invoicing.

A typical HUG2 retrofit covers: air-source heat pump replacing oil or LPG; whole-home insulation (loft, cavity, solid wall, underfloor); solar PV in some regions; smart heating controls; ventilation upgrades to prevent condensation after fabric improvements. The full bundle delivers an EPC uplift of typically 2–3 bands.

If you’re on the gas grid, you don’t qualify for HUG2 — ECO4 is the equivalent for gas-grid homes. If you’re off-grid but household income is above £36,000, you don’t qualify for HUG2 either, but you remain fully eligible for the Boiler Upgrade Scheme at £7,500.

4. Great British Insulation Scheme (GBIS)

GBIS (formerly ECO+) is the lighter-touch supplier obligation scheme alongside ECO4. It runs to March 2026 with a Government-mandated spending floor of £1 billion. It targets a wider pool of households than ECO4 but funds only basic insulation measures.

Eligibility is by Council Tax band A–D in England (A–E in Wales, A–C in Scotland under the equivalent scheme), with the property holding an EPC of D–G. No income test applies under the default route. A separate “general group” rule allows households on any benefit (not just the qualifying ECO4 list) to qualify in higher Council Tax bands.

Eligible measures: loft insulation top-up (most common, typical value £400–£800); cavity wall insulation (£1,500–£3,500); flat roof insulation; room-in-roof insulation; underfloor insulation; draught-proofing. External wall insulation is not covered under GBIS — for that you need ECO4.

GBIS is applied through any obligated supplier or approved installer. The 2026 average GBIS award is around £2,000–£5,000; the upper quartile (loft + cavity + draught-proofing as a package) reaches £8,000.

5. The Warm Homes Plan

Announced in the October 2024 Budget, the Warm Homes Plan commits £6.6 billion over five years to replace and expand the existing ECO and HUG framework. The first £3.4 billion was confirmed for 2025–2028, covering 350,000 homes. The remaining £3.2 billion is contingent on the next spending review.

The structural change versus ECO/HUG is to route delivery through local authorities rather than through energy suppliers. Councils will receive ring-fenced budgets to retrofit social housing and to deliver area-based programmes (whole streets of solid-wall housing, whole estates of off-gas-grid homes). The scheme also funds the public sector decarbonisation programme separately.

For homeowners, the practical implication in 2026 is that local councils are running a growing number of area-based offer schemes — bulk procurement deals where, if you live in a targeted street or postcode, you can have insulation or a heat pump installed at heavily subsidised cost or free entirely. Check your council’s website under “Warm Homes” or “Energy Efficiency” for current offers.

6. Disabled Facilities Grant (DFG)

The Disabled Facilities Grant is the oldest and most under-claimed grant on this list. Administered by every local council under the Housing Grants, Construction and Regeneration Act 1996, it funds adaptations to a home for a disabled occupant of any age. The statutory cap is £30,000 in England; many councils now apply a discretionary uplift to £40,000 or £60,000 under their local DFG policy.

Eligible works are wide: level-access showers and wet rooms; through-floor lifts and stairlifts; ramps and widened doorways; ground-floor bedroom and bathroom conversions; specialist sensory-impairment fittings; safe-play areas for children with learning disabilities. The works must be necessary and appropriate to meet a specific disability or age-related need, and reasonable and practicable given the property.

Eligibility is means-tested for adults (excluding children under 18 and adults receiving certain disability benefits, who automatically qualify in full). The means test considers household income and savings above £6,000; awards taper rapidly above £25,000 household income.

The application sequence is: contact the council’s Adult Social Care team and request an Occupational Therapist assessment; the OT writes a recommendation; the housing team produces a formal proposal; the works are tendered (DFG cases over £15,000 typically require competitive bids); the council pays the contractor on completion. Timelines vary widely: 12–26 weeks from first contact to works starting is typical, though urgent cases (palliative care, hospital discharge) can be fast-tracked to 4–6 weeks.

7. The 0% VAT route — the invisible saving

Under VAT Notice 708/6 (as extended by the 2022 Spring Statement and again in the 2024 Autumn Budget), a wide range of energy-saving installations qualify for a 0% rate of VAT until 31 March 2027. This is not a grant in the conventional sense — you don’t apply for it — but it’s a 20% reduction on the labour and materials cost of every qualifying install, regardless of household income or property type.

Qualifying measures: heat pumps (air-source, ground-source, water-source); solar PV; solar thermal; insulation (every type); draught-stripping; hot water cylinders for renewables; central heating controls; wind turbines; biomass boilers; water turbines; battery storage installed alongside another qualifying measure.

The 0% rate applies to both the materials and the labour provided they are supplied together by the same installer (the “single supply” rule). If you buy the panels yourself and hire labour separately, only the labour qualifies. The installer applies the 0% rate automatically on the invoice — you don’t claim it. From 1 April 2027 the rate reverts to the reduced 5% rate.

8. Local authority and pilot schemes

Beyond the national schemes, every local council runs a varying portfolio of pilots, area-based programmes, and Vacant Homes initiatives. The most useful ones in 2026:

• Cornwall – Sustainable Warmth: package up to £15,000 for energy retrofit, broader eligibility than HUG2.
• Greater Manchester Combined Authority: solar PV and battery storage grants in defined wards.
• West Midlands Combined Authority: retrofit accelerator pilot, £20,000+ for whole-house EWI in solid-wall areas.
• Northern Ireland Affordable Warmth: distinct from England’s ECO4, delivered by NIHE for households below £23,000 income.
• Welsh Nest scheme: free retrofit package for low-income households, delivered by British Gas under contract to Welsh Government.
• Scottish Warmer Homes Scotland: free retrofit package for low-income households; £6,000 typical award.

The signal-to-noise ratio on local schemes is poor — many advertise on council websites that haven’t been updated for two budget cycles. Phone the council’s Energy Efficiency or Sustainability team to confirm what is actually open for new applications.

How to stack — the realistic best-case scenario

The headline stacking principle is: different measures, different schemes. You cannot use two schemes to fund the same measure (no double-dipping). But you can use one scheme to insulate the fabric and another to replace the heating system, and a third to add solar PV.

For a 1970s detached, off-gas-grid home, EPC E, with household income £30,000, here is the realistic 2026 stack:

For a 1990s gas-grid semi-detached, EPC C, household income £55,000, the realistic 2026 stack is much shorter:

How to actually apply — the order that works

The single biggest mistake homeowners make is applying for individual grants in isolation. The correct sequence in 2026 is:

1. Get a current EPC. Most schemes require an EPC issued within the last 10 years. If yours is missing or expired, instruct an EPC assessor (£60–£120) before applying for anything. The recommendations on the EPC determine which measures the grants will fund.
2. Run the eligibility filter. Postcode, off-gas-grid status, household income, household composition, Council Tax band, EPC band — this combination determines your stack. The grant finder does this in one pass.
3. Apply for fabric grants first. ECO4, GBIS and HUG2 fund insulation. Insulating first means the heat pump system you install afterward is correctly sized for the new (lower) heat demand — saving £1,500–£3,000 on the heat pump unit.
4. Apply for heating last. The Boiler Upgrade Scheme voucher is the most valuable single grant. Apply once insulation is complete and the EPC has been re-issued reflecting the new fabric.
5. DFG runs in parallel. If applicable, the OT assessment and DFG process is independent of the energy grants and can run concurrently — don’t wait.
6. Use a single project manager. The 0% VAT rate requires the supplier and installer to be the same entity. A “single supply” project manager (a registered installer running a turnkey contract) is the only reliable way to capture both the grant value and the VAT relief.

What changed in 2026

Three things have shifted since the 2025 Spring Statement that materially affect homeowners:

• HUG2 cap rose from £15,000 to £25,000 for the most-deprived 10% of LSOAs in early 2026.
• The 0% VAT rate, originally scheduled to revert to 5% on 31 March 2027, was extended by the 2025 Autumn Statement to 31 March 2030 for “heat decarbonisation” measures (heat pumps and biomass) while remaining at 0% until March 2027 for other ESM categories.
• The Warm Homes Plan is replacing the ECO/HUG split with a single local-authority-routed delivery model from April 2026 onward. Apply under the existing scheme names where they still exist; the successor scheme will inherit live applications.

Common reasons applications fail

The 2025 ECO4/HUG ombudsman casework identified five recurring failure modes. The fixes for each are small and worth knowing:

• Outdated EPC. Re-issue before applying. Cheapest fix, biggest impact.
• Mismatch between benefit record and application. Universal Credit and Tax Credit data must match HMRC and DWP records exactly — double-check forenames and addresses.
• Property classification. Mobile homes, listed buildings and HMOs all have specific tightening rules; some installers refuse them. Confirm classification first.
• Outstanding loft/cavity recommendation. If the EPC flags an outstanding insulation recommendation, the BUS application will be rejected until it’s done. Sequence matters.
• VAT inadvertently charged at 20%. Some smaller installers default to 20% and will refund only on request. Confirm zero-rating in writing before signing the contract.

What this means for your renovation budget

For the typical UK whole-house renovation costing £40,000–£80,000, the realistic 2026 grant envelope sits at £8,000–£22,000 for owner-occupiers, depending entirely on the income/EPC/off-gas combination. That’s 15–30% of the project. It’s rarely enough to fund a renovation by itself but it almost always covers the energy-system upgrade in full — which is the most expensive single line item on most renovations.

The grants do not cover: structural alterations; cosmetic finishes; kitchens; bathrooms; flooring; decoration; landscaping. They are tightly focused on fabric and heating. Plan the energy elements of the project as a grant-funded sub-project and the rest as a self-funded renovation; the two can be contracted together but kept on separate invoices.

Frequently asked questions

What is the biggest UK home renovation grant in 2026?

For most homeowners the biggest single grant is the Boiler Upgrade Scheme (BUS) at £7,500 toward an air-source or ground-source heat pump installation. If you qualify for the Home Upgrade Grant Phase 2 the cap is higher — up to £25,000 for fabric-first retrofit of off-gas-grid homes — but eligibility is narrow. Disabled Facilities Grants pay up to £30,000 (and sometimes more under local discretion) for accessibility adaptations, also means-tested.

Can I stack UK renovation grants?

Yes, but only in specific combinations. ECO4 and the Great British Insulation Scheme cannot be used on the same measure but can fund different measures in the same house. The Boiler Upgrade Scheme can be combined with ECO4 funding for insulation upgrades that improve the heat pump's performance. The Disabled Facilities Grant runs in parallel to energy schemes. The 0% VAT rate stacks on top of every grant because it's a tax exemption, not a cash payment. Realistic best-case stacking for an off-gas-grid 1970s detached house with low household income: £25,000 HUG2 + £7,500 BUS + £5,000 GBIS bolt-ons = ~£37,500, plus 0% VAT savings of £2,000–£4,000 on the remaining works.

Do I have to repay UK home renovation grants?

No. Every grant on this list is a non-repayable subsidy. There are no clawback clauses or repayment triggers if you stay in the property. If you sell within a defined window (typically 5 years for Vacant Homes-style schemes, where they exist locally) some councils retain a clawback charge, but the national energy and accessibility grants are unconditional. You do not need to remortgage, take additional borrowing, or repay anything when the works complete.

How long does a UK renovation grant application take to approve?

Application to grant offer letter typical timelines in 2026: Boiler Upgrade Scheme — 4 weeks (the installer applies for the voucher on your behalf, valid 3 months). ECO4 — 6–10 weeks via an obligated supplier (British Gas, Octopus, EDF, etc.). Home Upgrade Grant Phase 2 — 8–14 weeks via the local authority delivery partner. Disabled Facilities Grant — 12–26 weeks; means-tested and requires an OT assessment. The realistic gap between deciding to apply and works starting on site is around 3–6 months for energy schemes and 6–9 months for DFG.

Who funds UK renovation grants — taxpayers or energy bills?

It depends on the scheme. ECO4 and GBIS are funded by a levy on energy suppliers, which is ultimately recovered through everyone's bills (around £40–£50 a year for the average household). The Boiler Upgrade Scheme, Home Upgrade Grant, Warm Homes Plan and Disabled Facilities Grant are funded directly by HM Treasury through Defra, DESNZ and MHCLG budgets. The 0% VAT is a Treasury tax expenditure (forgone revenue). Whether your council, an installer, or an energy supplier writes the cheque, the money ultimately comes from one of those two pots.

Are UK renovation grants taxable income?

No. Home improvement grants paid to owner-occupiers are not taxable as income. They are also not counted as capital gains because they're tied to the dwelling, not realised. The grant value does reduce the qualifying expenditure for Capital Gains Tax purposes on a future sale — i.e. if you spend £30,000 on a renovation funded £10,000 by a grant, only £20,000 is added to your base cost. For private landlords the position is different: grants reduce allowable expenses against rental income. Consult a tax adviser for any property with a mixed-use history.

This guide covers the grant landscape in England, with notes on Wales, Scotland and Northern Ireland where schemes diverge. Confirm details directly with your delivery body before relying on any figure quoted. Funding caps and eligibility rules are reviewed by HM Treasury each Budget. Explore the rest of the guides library or jump to the renovation calculator or the UK grant finder.