Window grants UK: what is real and what is finance

Are there government grants for new windows in the UK?

Public money for replacement windows is limited and is usually delivered as part of a wider energy efficiency package rather than as a standalone window grant. The main public schemes in Great Britain focus on insulation, heating and renewable measures. Window glazing is not a headline measure under ECO4 or Warm Homes: Local Grant, and in Scotland grant funding is not available for glazing at all. Most adverts that use the phrase window grants are promoting private discount or finance offers, not public grants. The small print on such adverts often states that the scheme is not affiliated with the UK government and that finance is available to anyone who does not qualify for a grant.

For England, the main council-run scheme is Warm Homes: Local Grant. To qualify, the home must be privately owned, either owner-occupied or privately rented, and have an EPC rating of D, E, F or G. Household income must usually be £36,000 a year or less. Households earning more than £36,000 may still qualify if they live in certain postcode areas or if someone in the home receives certain benefits. The council arranges a home survey, usually contacting applicants within 10 working days, and pays for the agreed work. Landlords may have to contribute. The measures listed on the GOV.UK page for this scheme are wall, loft and underfloor insulation, air source heat pumps, smart controls and solar panels. Windows and glazing are not listed there, so glazing is not something to assume will be funded.

ECO4: what it covers and when it ends

The Energy Company Obligation, known as ECO4, covers measures installed from 1 April 2022 and runs until 31 December 2026 after a nine-month extension. It is delivered through energy suppliers and their installers. Householders do not apply to the government directly. Ofgem's ECO page lists insulation and heating upgrades as example measures. Window glazing is not a headline ECO4 measure and is only funded where an installer includes it in a wider package. Anyone considering glazing under ECO4 needs to check with the installer whether it can be included alongside other measures.

Because ECO4 is supplier-led, the route to any funded work is through an energy supplier or an installer working for that supplier. There is no direct government application for ECO4. The scheme is not a window grant scheme. Glazing may appear only as an add-on within a broader package of insulation or heating work, and even then it is not guaranteed. The end date of 31 December 2026 applies to the scheme, and any work must be installed within the scheme rules. For households whose main interest is new windows, ECO4 is unlikely to provide the funding route, and the installer should be asked directly what is included.

Warm Homes: Local Grant in England

Warm Homes: Local Grant is the main council-run scheme in England. The home must be privately owned, either owner-occupied or privately rented, and have an EPC rating of D, E, F or G. Household income must usually be £36,000 a year or less. Households earning more than £36,000 may still qualify if they live in certain postcode areas or if someone in the home receives certain benefits. The council arranges a home survey, usually contacting applicants within 10 working days, and pays for the agreed work. Landlords may have to contribute. The assisted digital helpline is 0800 098 7950, open Monday to Friday 8am to 6pm and Saturday 9am to 12pm.

The GOV.UK Warm Homes: Local Grant page lists wall, loft and underfloor insulation, air source heat pumps, smart controls and solar panels as measures. Windows and glazing are not listed there. That means glazing is not something to assume will be funded under this scheme. A household that meets the income and EPC criteria may still find that the measures offered do not include windows. The council survey determines the agreed work, and the council pays for that work. Anyone who wants to know whether glazing could form part of a wider package should ask the council or the installer directly, but the published list of measures does not include windows.

Scotland, Wales and Northern Ireland

In Scotland, Home Energy Scotland states that grant funding is not available for glazing. An interest-free loan of up to £8,000 is available for glazing, only for improving single glazing. Home Energy Scotland funding is for owner-occupiers whose home is their only or primary residence. It is first come first served, and offers are valid for nine months once issued. This is a loan rather than a grant, and it is limited to improving single glazing rather than replacing windows generally. For households in Scotland, the public support route for glazing is therefore a loan, not a grant.

For Wales and Northern Ireland, the position depends on the current national scheme and the local council. No amounts beyond the facts supplied here should be assumed. Anyone in Wales or Northern Ireland who sees an advert offering a window grant should check the current national scheme and the relevant council before relying on the advert. The pattern seen across Great Britain is that public funding for glazing is either absent or limited to specific circumstances, such as part of a wider package or a loan for single glazing. Adverts that promise fully funded windows should be treated with caution until the underlying scheme is identified and verified.

Great British Insulation Scheme has closed

The Great British Insulation Scheme ended on 31 March 2026. Installations had to be complete by that date, and the GOV.UK eligibility checker has closed. Some energy suppliers were still processing applications at the point the scheme closed. This means the scheme is no longer a route to new funding for insulation or any other measure, including glazing. Any advert that still refers to the Great British Insulation Scheme as an active source of funding is out of date.

Because the eligibility checker has closed, there is no live public route to check eligibility for that scheme. Households that had applications in progress with an energy supplier may still be contacted by that supplier, but no new applications can be made. For anyone researching window grants, the closure of the Great British Insulation Scheme removes one potential source of confusion. The remaining public schemes are ECO4, which runs until 31 December 2026, Warm Homes: Local Grant in England, and the Home Energy Scotland loan for single glazing. None of these is a general window grant scheme.

How 'free window' adverts work

Some online adverts describe private discount or finance schemes as window grants or fully funded windows. The small print often states that the scheme is not affiliated with the UK government and that the offer provides finance to anyone who does not qualify for a grant. These adverts commonly appear as advertorial pages that look like news or consumer advice. They may include a region or postcode checker that asks a few questions before presenting an offer. The offer is typically a finance agreement or a discount, not a public grant. No company names are given here because the pattern is what matters, not any individual advertiser.

The structure of these adverts is consistent. A headline suggests that government money is available for windows. A short eligibility quiz follows, often asking about home ownership, age or postcode. The result is a finance offer or a discount, sometimes with a monthly payment figure. The small print then clarifies that the scheme is not a government grant and that finance is available to those who do not qualify for any grant. This is a finance offer dressed as a grant. The distinction matters because a grant does not have to be repaid, while finance does, and the terms of finance are set by the lender, not by a government scheme.

Checks before you sign anything

A firm offering finance for windows must be authorised by the FCA for credit broking. Status can be checked on the FCA Financial Services Register. A credit broker is not the lender. Contracts signed at home or online are usually covered by a 14-day cancellation period under the Consumer Contracts (Information, Cancellation and Additional Charges) Regulations 2013. Replacement windows in England and Wales must meet Building Regulations. An installer registered with a competent person scheme can self-certify the work; otherwise building control approval is needed. Written quotes should be obtained, and no fee should be paid to check eligibility for a grant.

Before signing, the key checks are the FCA register for any credit broking, the 14-day cancellation right, and the Building Regulations position for the glazing work. A competent person scheme registration allows the installer to self-certify, which simplifies compliance. If the installer is not registered, building control approval is needed. Written quotes allow comparison and provide a record of what is included. Paying a fee to check eligibility for a grant is not a normal part of public schemes. Public schemes such as ECO4 and Warm Homes: Local Grant do not require an upfront fee to check eligibility, and the Warm Homes: Local Grant helpline is free to call.

Source: Ofgem: Energy Company Obligation.

Related coverage on Kael Tripton: ECO4 eligibility checker UK 2026: the rules that actually apply, Loft Insulation UK 2026: Costs, ECO4 Eligibility & TrustMark Verification, Warm Homes Plan 2026: Free Insulation, Heat Pump Grants and Solar Loans - What You Can Claim, Loft Insulation Cost UK 2026: Prices, Savings & Grants, Boiler Upgrade Scheme: £7,500 and £9,000 Heat Pump Grants.

Frequently asked questions

Are there government grants for new windows in the UK?

Public grants for new windows are rare. ECO4 and Warm Homes: Local Grant focus on insulation, heating and renewable measures, and glazing is not a headline measure. In Scotland, grant funding is not available for glazing, though an interest-free loan of up to £8,000 is available for improving single glazing. Most adverts using the phrase window grants are promoting private discount or finance offers.

What is the income limit for Warm Homes: Local Grant in England?

Household income must usually be £36,000 a year or less. Households earning more than £36,000 may still qualify if they live in certain postcode areas or if someone in the home receives certain benefits.

Does ECO4 cover window glazing?

Window glazing is not a headline ECO4 measure. It is only funded where an installer includes it in a wider package. ECO4 is delivered through energy suppliers and their installers, and householders do not apply to the government directly. ECO4 runs until 31 December 2026.

Is there a grant for glazing in Scotland?

Home Energy Scotland states that grant funding is not available for glazing. An interest-free loan of up to £8,000 is available for glazing, only for improving single glazing. Funding is for owner-occupiers whose home is their only or primary residence, is first come first served, and offers are valid for nine months once issued.

Has the Great British Insulation Scheme closed?

Yes. The Great British Insulation Scheme ended on 31 March 2026. Installations had to be complete by that date, and the GOV.UK eligibility checker has closed. Some energy suppliers were still processing applications at the point the scheme closed.