Grants on New Boilers UK 2026: What Is Available and Who Qualifies

The honest starting point for this question is this: there is no government grant that pays toward a new gas boiler for every household. The phrase "boiler grant" gets used loosely online in ways that mislead people about what is actually available, who qualifies, and what the money can be spent on. Getting this right before you start saves significant time and protects you from the fraud that targets this exact search.

Important: InstantGrant is an independent grant information and application-support service. We are not the UK government, Ofgem, or any energy supplier. We do not install boilers or award grants. All scheme details on this page are verified against GOV.UK, instantgrant.co.uk live data, and Ofgem guidance as of 5 September 2026. Scheme eligibility and availability change. Always confirm current details with your energy supplier or an Ofgem-registered installer before proceeding.

There are three situations where government funding can contribute to a new boiler or heating system in 2026. Each has completely different eligibility criteria, a different delivery mechanism, and a different end result.

Grants on New Boilers: The Three Routes

Route 1: ECO4 — Free Boiler Replacement for Benefits Households

ECO4 is the Energy Company Obligation scheme, delivered through large energy suppliers for qualifying lower-income households. If someone in your home receives a qualifying means-tested benefit and your property is rated EPC D to G, ECO4 can fund a boiler repair or replacement at no cost to you.

ECO4 closes on 31 December 2026. Several websites still say it ended in March 2026 or was extended to October 2026. Both are wrong. The correct end date is 31 December 2026, confirmed in the ECO4 scheme extension documentation.

Qualifying benefits include Universal Credit, Pension Credit, Housing Benefit, Income Support, income-based JSA, income-related ESA, Child Benefit, Child Tax Credit, and Working Tax Credit.

Route 2: Boiler Upgrade Scheme — £7,500 Toward a Heat Pump

The Boiler Upgrade Scheme does not fund gas boilers. This matters because the scheme's name causes significant confusion. The BUS gives £7,500 off the cost of replacing your fossil fuel heating system with an air source or ground source heat pump. Oil and LPG properties can access £9,000 until March 2027.

If your goal is a new gas boiler, the BUS does not apply. If you are open to replacing your gas heating with a heat pump instead, the BUS applies to any eligible homeowner in England and Wales with no income test.

Route 3: Warm Homes Local Grant — For Lower-Income Households in England

The Warm Homes Local Grant, delivered through local councils in England, can fund low-carbon heating including heat pumps for households with income under £36,000 or in designated deprived postcode areas. It does not fund like-for-like gas boiler replacements. It covers low-carbon heating measures only.

ECO4 Boiler Grants: What You Actually Receive

ECO4 operates on a whole-house approach. This is the most important practical detail that most "free boiler" guides miss entirely.

A boiler replacement under ECO4 is rarely installed as a standalone measure. The scheme requires that the package of improvements funded lifts your home by at least two EPC bands wherever technically possible. In practice, this means insulation almost always comes alongside a boiler replacement rather than instead of it.

If a Retrofit Assessor visits your property and finds that loft insulation and cavity wall insulation, without a boiler change, can achieve the two-band improvement target, the scheme may fund insulation only rather than a new boiler. Whether you receive a boiler replacement depends on what your specific property needs, not on a simple eligibility checklist.

A property with an old, inefficient boiler alongside poor insulation is more likely to receive both insulation and a boiler replacement as part of the same ECO4 package. A property with reasonable insulation but an old boiler may receive insulation measures only.

The "Boiler Must Be 10 Years Old" Rule

Several websites state that your boiler must be a specific age to qualify for ECO4 boiler replacement. This is not an official government eligibility rule. The decision about whether a boiler replacement is appropriate is made by the Retrofit Assessor during the PAS 2035 home survey, based on the system's condition, efficiency, and the role a replacement would play in achieving the two-band EPC improvement.

Some installers apply their own commercial age threshold when initially screening enquiries. If you are told your boiler is not old enough, ask specifically whether a formal Retrofit Assessment has been carried out rather than accepting a preliminary screening decision as final.

Who Qualifies for a Free Boiler Through ECO4

To qualify for ECO4 and potentially receive a boiler replacement as part of the package, all of the following must apply:

Your home must be rated EPC D, E, F, or G. Find your current rating at gov.uk/find-energy-certificate.

You or someone permanently living in your home must receive a qualifying means-tested benefit. The full list covers Universal Credit, Pension Credit (both Guarantee and Savings Credit), Income Support, income-based JSA, income-related ESA, Housing Benefit, Child Benefit, Child Tax Credit, and Working Tax Credit.

Your property must be in England, Scotland, or Wales. ECO4 does not operate in Northern Ireland.

If you do not receive qualifying benefits but your household income is low, ECO4 Flex may provide an alternative route through your local council's referral scheme. Contact your council's housing team to ask whether they operate an ECO4 Flex programme.

What If You Do Not Qualify for ECO4?

This is the question most guides avoid answering directly. If you do not receive qualifying benefits and are not eligible through ECO4 Flex, there is currently no national government grant that covers a like-for-like gas boiler replacement.

Your options in this situation are:

Get at least three quotes from Gas Safe registered engineers. Prices vary significantly and comparison drives the best outcome.

Consider 0 percent interest finance. Most reputable boiler installers offer interest-free finance for 12 months. This spreads the cost without adding to it.

Consider the Boiler Upgrade Scheme as an alternative if you are open to a heat pump. The £7,500 BUS grant reduces the total cost of a heat pump to a range comparable with a quality gas boiler installation for many properties.

Check your local council. Some councils run their own emergency heating support or hardship funds for residents in acute need. Contact your council's housing team.

Check the Warm Homes Local Grant if you are in England and your income is under £36,000. This scheme covers low-carbon heating rather than gas boilers, but it may cover the heating upgrade your home needs.

Is the Boiler Upgrade Scheme a Boiler Grant?

The Boiler Upgrade Scheme is sometimes described as a boiler grant, which creates confusion. The BUS gives £7,500 toward replacing your fossil fuel heating system with a heat pump. A heat pump replaces your boiler entirely, providing all the heating and hot water your home needs without burning gas.

For households currently on gas, switching to a heat pump means your gas connection effectively becomes redundant for heating purposes. The heat pump delivers heat to your existing radiators at lower flow temperatures than a gas boiler. Some homes need larger radiators or some pipework changes for the heat pump to perform optimally.

The BUS is not a grant toward a new gas boiler. It is a grant toward a different type of heating system that removes the need for a boiler. This distinction matters for how you plan your budget and what you discuss with installers.

Grants for New Boilers in Scotland

Scotland runs its own energy grant system and provides more routes to a funded boiler replacement than England and Wales offer for non-benefits households.

Warmer Homes Scotland, delivered by Warmworks, provides fully funded boiler repair and replacement as part of a wider package for households receiving qualifying benefits, those aged 75 or over, and households where a disability or health condition is worsened by cold. There is no cap on the total value of the package. Contact Home Energy Scotland free on 0808 808 2282.

ECO4 also operates in Scotland through energy suppliers for benefits households, closing 31 December 2026.

The Home Energy Scotland Grant and Loan provides up to £7,500 in grants plus £7,500 in interest-free loans for low-carbon heating including heat pumps, for all Scottish homeowners regardless of income.

Grants for New Boilers in Northern Ireland

ECO4, the Boiler Upgrade Scheme, and the Warm Homes Local Grant do not operate in Northern Ireland. The main route for boiler replacement support in NI is the Affordable Warmth Scheme, administered by the Northern Ireland Housing Executive, for households with gross income under £23,000. Disability benefits are excluded from the income calculation. Contact the NI Energy Advice line free on 0800 111 44 55.

Free Boiler Scams: How to Protect Yourself

"Free boiler" is one of the most commonly exploited phrases in UK energy fraud. Knowing what genuine schemes look like makes the difference between accessing real help and losing money or personal data.

Legitimate ECO4 boiler replacement funding:

• Is always free — no deposit, no processing fee, no payment at any stage

• Requires a home survey before any work is agreed or confirmed

• Is delivered by TrustMark-registered installers

• Does not involve someone arriving at your door unannounced offering a free boiler immediately

• Does not require your bank details to "process" the grant

Warning signs of a scam or misleading company:

• Being told you are approved for a free boiler without any eligibility questions being asked

• Pressure to sign paperwork on the same day as first contact

• A request for any upfront payment to secure the installation date

• Vague references to "the government scheme" without naming the specific programme

• An online calculator that tells you within seconds that you qualify for a specific cash amount

If something feels wrong, verify any company at trustmark.org.uk before allowing anyone into your home. Report suspected fraud to Action Fraud at actionfraud.police.uk or on 0300 123 2040.

UK Nations at a Glance: Boiler Grants Compared

Frequently Asked Questions

Is there a government grant for a new gas boiler? Only for qualifying households through ECO4. If you or someone in your household receives a means-tested benefit and your home is rated EPC D to G, ECO4 can fund a boiler replacement as part of a wider package. There is no universal grant for a new gas boiler for all households.

What grants are available for new boilers in 2026? ECO4 (benefits-based, closes 31 December 2026), the Boiler Upgrade Scheme (£7,500 toward a heat pump, no income test, to 2030), and the Warm Homes Local Grant (low-carbon heating, England, to 2028). Scotland has Warmer Homes Scotland and the Home Energy Scotland Grant and Loan. Northern Ireland has the Affordable Warmth Scheme.

Does ECO4 always provide a free boiler? No. ECO4 takes a fabric-first approach. The Retrofit Assessment determines what measures your property needs. Some households receive insulation only. Others receive insulation and a boiler replacement. The decision depends on what the assessment determines is needed to achieve a two-band EPC improvement for your specific property.

Does the Boiler Upgrade Scheme cover gas boilers? No. The BUS covers air source heat pumps, ground source heat pumps, and biomass boilers in rural off-grid properties only. It does not fund a new gas boiler of any kind.

Do I need to be on benefits to get a free boiler? Through ECO4, yes — or you need to qualify through the ECO4 Flex low-income referral route via your local council. The Boiler Upgrade Scheme has no means test but funds heat pumps rather than gas boilers. Scotland's Warmer Homes Scotland covers vulnerability-based as well as benefits-based eligibility.

Is there a boiler grant if I am not on benefits? There is no national grant for a like-for-like gas boiler replacement for households not on benefits. The Boiler Upgrade Scheme is available without a means test but funds a heat pump replacement rather than a new gas boiler. In Scotland, the Home Energy Scotland Grant and Loan provides up to £15,000 in grants and loans for heat pump installations for all Scottish homeowners regardless of income.

How do I know if a free boiler offer is genuine? Genuine ECO4 boiler grants never require upfront payment and always involve a home survey before any work is confirmed. Verify any company at trustmark.org.uk before proceeding. Report suspected fraud to Action Fraud on 0300 123 2040.

When does ECO4 close? 31 December 2026. Several websites still state March 2026 or October 2026 as end dates. These are incorrect. The correct date is 31 December 2026, confirmed in the official ECO4 extension documentation.

How InstantGrant Can Help

Understanding which route applies to your household, whether ECO4, the Boiler Upgrade Scheme, or a Scotland or Northern Ireland alternative best fits your situation, takes more than reading a grants list.

InstantGrant is an independent grant information and application-support service. We help UK households and homeowners identify the right scheme for their heating situation, understand what they can realistically expect to receive, and avoid wasting time on routes that do not fit.

We are not Ofgem, any energy supplier, or any installer. We do not award grants and we do not guarantee any outcome. We help you start the right process with accurate information.

Check your eligibility at instantgrant.co.uk