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While there are no government grants specifically for double glazing, other funding sources can help with the cost of an energy-efficient window installation.
Although there are no specific double glazing grants in the UK, there are several government funding schemes that can help reduce the costs of installing new windows, including double-glazed windows.
Our experts continually monitor the latest government policies, funding schemes and industry updates to ensure you have access to the most accurate and up-to-date information about new windows grants. Any new details on the Labour Government’s Warm Homes Plan, which it outlined in January 2026, are being made available here as soon as possible after they are released.
In the meantime, you should have all the information you need below to find out whether you are eligible for any double glazing grants and how to apply to the various schemes available.
| Double glazing schemes | Window upgrade available | Area covered | Dates | Eligibility |
|---|---|---|---|---|
| Warm Homes: Local Grant | Upgrading to double or triple glazing | England | 2025 – 2028 | Homeowners and tenants on a low income and/or receiving income-related benefits |
| ECO4 scheme | Dependent on inspection | England, Scotland and Wales | 1 April 2022 – 31 December 2026 | People receiving income-related benefits |
| Welsh Home Improvement Loans scheme | Insulation | Wales | 2015 – 2030 | Homeowners on a certain income or benefits requiring essential repairs |
| Home Energy Grant and Loan Scheme | Interest-free loan to upgrade single glazing with double glazing | Scotland | May 2017 – ongoing | Homeowners or self-builders (no property developers or landlords) |
Grants, loans and schemes are all potential sources of funding for double glazing windows, but they work in different ways.
A grant is an award of money that generally doesn’t need to be repaid, while a loan is borrowed money that must be repaid over an agreed period. Meanwhile, a government scheme refers to a policy programme that may include window grants, loans or payment plans.
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Launched in April 2025 as part of the latest Labour government budget, the Warm Homes: Local Grant aims to tackle fuel poverty, cut carbon emissions and promote renewable energy adoption in lower income households.
Under the Local Grant, eligible households across England could receive a grant up to £16,600 towards energy efficient home improvements including installing double or triple glazing, or draught proofing. A further £16,600 is available to each household to install a low-carbon heating solution such as an air source heat pump.
Eligibility criteria includes:
You can check your eligibility for the Warm Homes Plan with the government’s free eligibility checker. If you are eligible, your application will automatically be sent to your local authority. Local authorities are the organisations who handle dispensing the funding and they can flex the requirements to meet their communities’ needs at their discretion, so it’s worth applying even if you don’t meet every single eligibility criteria.
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ECO4 was the major scheme for household energy efficiency improvements in the UK, including double glazing installations. While it has recently been extended until December 2026, allocations for new projects are low in many constituencies, so successful applications are increasingly rare. It is being replaced by the Warm Homes: Local Grant scheme outlined above.
ECO4 is a partnership between medium and large energy suppliers and Ofgem, the UK energy regulator, to help low-income households and those affected by fuel poverty in England, Scotland and Wales reduce their energy bills and household carbon emissions by funding home improvements.
In some cases, the ECO4 scheme could cover 100 per cent of the costs of upgrading windows, but some qualifying homeowners may be required to contribute towards the cost of their double glazing installation. ECO4 funding is means-tested, which means the level of financial support will vary between households depending on income and benefits received.
You can apply for the ECO4 scheme if you’re in receipt of at least one of the following benefits:
If your supplier is not signed up to deliver ECO4 support, you can contact any obligated supplier, which include:
Individuals can’t apply for ECO4 directly; instead, if you want to apply, you’ll have to do so through your window installer. After your application is submitted and you’ve gone through an eligibility check, an energy assessor will conduct a home evaluation to find out your specific needs. If the grant is approved, you’ll receive confirmation and your chosen installer will receive the grant funds directly.
On January 23rd, the UK government announced it was extending the ECO4 scheme until 31 December 2026, so you have more time to apply if you’re eligible. However, note that fewer and fewer applications are successful as the scheme nears its end.
Eligible Welsh homeowners may be able to secure an interest-free loan ranging from £1,000 to £35,000 via the Welsh Government’s Home Improvement Loan scheme.
The loans are administered by Welsh local authorities, who may charge a 15 per cent administration fee upon approving a loan. Home Improvement Loans are the closest option to window replacement grants available in Wales.
To qualify for a Home Improvement Loan, you must be a homeowner, landlord, developer or charity/third sector organisation and pass an affordability assessment.
Minimum loan amount are £1,000 per household, and repayment terms are decided on a case-by-case basis, with a maximum repayment period of 10 years.
The Home Energy Scotland Grant and Loan scheme is open to all homeowners in Scotland, who could be eligible to receive an interest-free loan of up to £8,000 to help with the costs of upgrading from single glazing to double or triple glazing.
A ‘rural uplift’ of £1,500 is also available, raising that total to £9,500 for households in remote rural and island areas, as well as off-grid accessible rural areas as defined by the Rural Urban Classification.
Previously, the scheme also offered grant funding for energy efficient home improvements such as upgrading windows, but this is no longer available for windows specifically (you could still get a grant for insulation or high heat retention storage heaters). Grant funding is also still available for clean heating systems such as solar thermal panels or heat pumps.
Importantly, you must own your home and live in it to apply for the Home Energy Scotland Grant and Loan Scheme. This means landlords and property developers cannot benefit.
You can check your eligibility using the Home Energy Scotland self-assessment tool. If you are eligible, your contact details will be sent over to an adviser who can assess your home’s needs and recommend home improvements to improve its efficiency, which may include double glazing.
If you do not qualify for a government windows grant, the good news is that there are other loans and financial assistance options available, including the Barclays Greener Home Rewards.
Many double glazing providers offer finance options to help you spread the upfront cost of installation, as well as time-limited discounts that decrease the price of window replacement.
We’ve compiled some of the best alternative sources of double glazing funding or cost savings below.
| Double glazing financial assistance schemes | Running time | Regions covered |
|---|---|---|
| Barclays Greener Home Reward | Ongoing | England, Scotland, Wales and Northern Ireland |
| Installer-led window scrappage schemes | Ongoing | England, Scotland, Wales and Northern Ireland |
The Greener Home Reward scheme is offered to homeowners who have a mortgage with Barclays. It provides at least £500 towards the cost of various energy-efficient home improvements, including double glazed windows. You have 3 months from the invoice or payment date to submit your claim for a Greener Home Reward.
To apply for the Barclays Greener Home Reward, you must meet a number of criteria:
From the 8th of January 2026, Barclays is reducing the types of home improvements eligible under the scheme, as well as reward amounts.
Many double glazing companies across the UK offer scrappage schemes. Essentially, the installer pays you a certain amount for your old windows and then recycles them responsibly, reducing the cost and environmental impact of replacing your windows.
One highly rated windows installer, Anglian, offers the Anglian Scrappage Scheme, which can reduce the cost of replacement windows by an average of £1,000. Your old window frames will be recycled to make other products such as loft insulation and plastic piping, while the glass panes are used for things like aggregate for road surfacing.
Installers in Scotland, Wales, the North of England and the Midlands’ scrappage schemes are supported by FENSA, which is a government-authorised scheme that monitors regulatory compliance for replacement windows and doors.
The Affordable Warmth Scheme, which ran until the end of March 2026, supported low-income households in Northern Ireland through funding for energy-efficient home improvements. To qualify for the scheme, applicants must own or privately rent the property as their main home and earn less than £23,000 a year. Eligible households could receive up to £7,500 towards energy-efficient upgrades, including double glazing installations.
The scheme offered upgrades in the following priority order:
Improvements must have been carried out in the order of priority outlined above until the funding is used up. For example, if a property required improvements listed under Priority 1 or Priority 2, then it’s unlikely that the grant would cover window replacement, which is classed as Priority 3.
The Home Upgrade Grant (HUG2) scheme was designed to support an estimated low-income households, including those living off the gas grid or in social housing with energy-efficient or low-carbon home improvements, including double glazing. The scheme, which closed in March 2025, was supported by local authority funding and was available through 45 of the 317 local authorities in England.
The Green Deal was a government scheme that ran between 2012 and 2015, and while it is closed to new applications, homeowners who applied then can still receive funding today.
Financed by private financial services providers, the Green Deal Loan scheme offers funding for energy-saving home improvements to properties in England, Wales and Scotland, including double glazing, solar panels and boiler upgrades.
An EPC is a document that provides an overview of a property’s energy efficiency. It rates your home’s energy efficiency on a scale from A (most efficient) to G (least efficient) and includes recommendations for improving energy usage. The EPC rating is crucial for homeowners looking to understand their property’s energy consumption and potential areas for improvement. It’s often required when selling or renting a home or when applying for a government grant to fund energy-efficient home improvements such as double glazing.
To check your home’s EPC rating, visit the Government’s EPC register and search for your property by postcode. The register maintains a database of EPCs for properties assessed in the past 10 years. If your home has an up-to-date EPC, you can view and download the certificate free of charge.
If your property doesn’t have an EPC or its EPC has expired, you’ll need to have your home assessed by an accredited energy assessor, which can cost between £60 and £120. The assessor will evaluate various aspects of your property such as its insulation, heating systems and window quality before issuing the EPC rating.
Listed buildings are usually exempt from requiring an EPC.
Even without a double glazing grant, upgrading to double glazed windows could still make financial sense for many households.
Double glazing reduces the transfer of heat from inside your home to the outside. This energy efficiency improvement can save you up to £235 per year on your heating bills – a figure that will only rise as energy prices continue to skyrocket.
In addition, double glazed windows can improve the appearance, value and saleability of your home. If you have plans to move, you’ll be pleased to know that double glazing can add up to 10 per cent to your property’s value while reducing your carbon footprint.
If you’re the tenant of a privately-let property and you meet the applicable eligibility criteria, your landlord may qualify for ECO4 funding to improve the EPC of the property through a double glazed windows grant. Landlords can also apply to the Warm Homes: Local Grant for a range of home energy improvements, and no contribution will be expected from you as the tenant.
Landlords with properties listed with the Scottish Assessors Association can apply for a Private Rented Sector Landlord Loan from Home Energy Scotland. The landlord can borrow up to £38,500 per property, with a set amount applicable to specific upgrades, including £4,500 for upgrading single glazing. Note that this funding does not apply to replace or improve existing double- or triple-glazing.
Yes, landlords can enhance their rental properties’ attractiveness and profitability by applying for double glazing grants to cover home improvements, providing tenants with a better experience while maximising their return on investment.
For example, private rented sector landlords can have a set of upgrades fully funded for one property under the Warm Homes: Local Grant scheme, and social landlords can also apply but will need to make a 50 per cent contribution towards the measures installed.
Whether or not you can get a window grant or loan to help with installation costs, we would still recommend replacing your windows with double glazing if your budget allows it.
Double glazing brings many valuable benefits to a home, including:
You should replace your old windows every 20 years to keep your home as energy efficient as possible. If you’re noticing draughts, condensation, or rising energy bills, it might be time to upgrade those faulty windows by applying for a government grant, if you are eligible.
There are other ways to save money on double glazing aside from grants and loans. Consider the following factors to reduce the cost of installing double glazing:
Home improvement schemes including double glazing grants or loans are updated regularly, although brand new initiatives are quite rare.
Our research team regularly checks official sources to discover upcoming grants for windows in England, Scotland, Wales, and Northern Ireland. Whenever a new scheme is announced, you’ll find the details here.
Depending on your location, you can also check the following sources for updates:
You could get free windows under the Warm Homes Plan: Local Grant if you live in the UK, but that depends on your income levels, whether you receive any benefits, where you live and the energy efficiency rating of your home.
If you are eligible, a government grant may cover up to 100 per cent of double glazing costs, though some schemes prioritise other home improvements first. Depending on the terms and conditions of your funding, you may be expected to contribute to installation costs. Double glazing costs vary based on the window type and material, the number of windows and the installer. On average, uPVC windows cost around £500 each, while timber windows start at about £1,500 per window.
When to upgrade your windows depends on factors such as your financial situation, your property plans and the condition of your existing windows. However, considering the current rise in energy prices, now is a good time to make any energy efficient improvements to your home that may bring your bills down.
In January 2024, the UK Government eased the rules on double glazing for listed buildings in England, allowing energy-efficient window replacements subject to planning permission and conservation guidelines. Listed properties – which are often eligible for energy efficiency grants due to poor energy performance – are usually required to meet certain socio-economic criteria to receive a grant
Alternatively, you can bookmark this page as we regularly update it with accessible summaries of new double glazing grants, loans and schemes.
We hope this guide has helped you find details of a suitable funding source. Our research team regularly checks official sources to discover upcoming grants for windows in England, Scotland, Wales, and Northern Ireland. Whenever a new scheme is announced, you’ll find the details here.
