No, you cannot get completely free windows and doors under any standard UK government scheme, though some homeowners may qualify for a grant that covers the full cost. The Great British Insulation Scheme closed on 31 March 2026. It funded insulation measures only and never covered windows or glazing.
The key variable is your household income and property type. The Great British Insulation Scheme closed on 31 March 2026. It funded insulation measures only and never covered windows or glazing. These are aimed at low-income, vulnerable, or fuel-poor households, often those receiving specific benefits. If you do not meet the eligibility criteria, you will need to pay for upgrades yourself. Private landlords cannot access these grants for their rental properties, and the schemes do not cover repairs, only replacements that improve energy efficiency.
Only ECO4 and GBIS offer full funding
The Energy Company Obligation (ECO4) scheme runs from 2022 to 2026 and funds energy-efficiency measures, including windows and doors, for eligible households. To qualify, you must receive a means-tested benefit such as Pension Credit, Income Support, or Universal Credit, and your home must have an Energy Performance Certificate rating of D, E, F, or G. The Great British Insulation Scheme closed on 31 March 2026. It funded insulation measures only and never covered windows or glazing. Both schemes are delivered through your energy supplier, and you must apply directly, there is no central government application portal (Ofgem, 2026).
Local authority grants may help
Some councils offer discretionary grants for window and door replacements through the Local Authority Delivery (LAD) scheme or the Home Upgrade Grant (HUG). These are typically for off-gas-grid homes with low energy efficiency and low household income. For example, the Home Upgrade Grant provides up to £10,000 per property for measures including double glazing, but eligibility varies by region. You should contact your local council’s energy-efficiency team to check current availability. These grants are not guaranteed and often have waiting lists (GOV.UK, 2026).
No free schemes exist for general homeowners
If you do not qualify for means-tested support, there are no government schemes offering free windows and doors. The Green Homes Grant was closed in 2021 and not replaced. However, you may be eligible for reduced-rate VAT (currently 0% on energy-saving materials under the 2026 rules) or interest-free loans through the Energy Company Obligation’s Affordable Warmth element. Always check with a TrustMark-registered installer before paying for work, as some companies advertise “free” windows but add hidden charges or tie you into expensive credit agreements (TrustMark, 2026).
A worked example
Glazing is standard-rated for VAT at 20%. The zero rate for energy-saving materials covers insulation, heat pumps and solar panels; HMRC names secondary and double glazing as excluded (VAT Notice 708/6). If the householder receives Pension Credit, they may qualify for full funding under the ECO4 scheme, reducing their upfront cost to £0. The Great British Insulation Scheme closed on 31 March 2026. It funded insulation measures only and never covered windows or glazing. Annual energy savings from draught-proofed, double-glazed windows and an insulated door are estimated at £260 per year by the Energy Saving Trust. At that rate, the payback period for the net cost after partial grant support is roughly 27 years, though the main benefit is improved comfort, reduced condensation, and a warmer home overall.
| Item | Figure |
|---|---|
| Upfront cost after grants | £7,000 |
| Yearly savings | £260 |
| Payback period | 27 years |
| 25-year lifetime savings | £6,500 |
What homeowners often get wrong
The most common mistake is assuming that any UK homeowner can get free windows and doors through a government scheme. This misconception leads to disappointment and wasted time applying for grants you cannot access. Here are the top three errors people make
- The Great British Insulation Scheme closed on 31 March 2026. It funded insulation measures only and never covered windows or glazing. Only owner-occupiers or tenants in social housing qualify, so if you rent out your property, you must pay for upgrades yourself.
- Thinking the grant covers repairs, not replacements These schemes only fund energy-efficiency improvements that meet specific standards, such as installing double glazing where none exists. Replacing a broken single pane or fixing a rotten frame does not qualify, leaving you with the full repair bill.
- Overlooking the Energy Performance Certificate requirement Your home must have an EPC rating of D, E, F, or G to be eligible for most free window and door schemes. If your property already has a C rating or above, you cannot get funding, regardless of income or benefits.
Quick reference
- Only households receiving a means-tested benefit such as Pension Credit or Universal Credit can get 100% funded windows and doors through ECO4.
- The Great British Insulation Scheme closed on 31 March 2026. It funded insulation measures only and never covered windows or glazing.
- All government-funded window and door replacements must be installed by an MSC-certified installer to keep the warranty valid.
- Typical annual energy savings from upgrading single glazing to A-rated double glazing are around £260 for a semi-detached home in the UK.
- Applying for a grant without first checking your EPC rating and benefit eligibility often results in a rejected application and no funding at all.
Frequently Asked Questions
Yes, if you receive Universal Credit and your home has an EPC rating of D-G, ECO4 may fully fund replacements. Contact your energy supplier to apply.
Check with your energy supplier or local council via GOV.UK.
You qualify if you receive a means-tested benefit like Pension Credit or Income Support and your home has an EPC rating of D, E, F, or G. Energy Saving Trust confirms this.
