Introduction
If your boiler is old, unreliable, or expensive to run, you may be wondering whether any boiler grants 2026 schemes can help cover the cost of repairs, replacement, or heating upgrades. The short answer is yes — but funding depends heavily on your household income, property type, EPC rating, heating system, and whether you are upgrading to a low-carbon alternative.
For homeowners across West Sussex, the funding landscape can feel confusing. Some schemes support boiler repairs or replacements, while others focus on insulation, heat pumps, smart controls, or wider energy efficiency improvements.
At Lock & Lindfield, we help homeowners understand their heating options clearly. This guide explains what boiler grants and heating funding are available in 2026, who may qualify, and when to speak to a professional heating engineer.
What Boiler Grants Are Available in 2026?
In 2026, the main boiler and heating funding routes include ECO4, the Boiler Upgrade Scheme, Warm Homes: Local Grant, local West Sussex schemes, and certain bill-support payments. Some schemes may support boiler repairs or replacement, while others focus on heat pumps, insulation, solar panels, and heating controls.
The key schemes to know about are:
- Energy Company Obligation (ECO4)
- Boiler Upgrade Scheme (BUS)
- Warm Homes: Local Grant
- West Sussex Warmer Homes / local energy grants
- Warm Home Discount
- Winter Fuel Payment
- Cold Weather Payment
It is important to understand that not every scheme is a direct “free boiler grant”. In many cases, the funding is designed to improve your home’s overall energy efficiency, which may include heating upgrades alongside insulation, controls, or low-carbon heating.
If your boiler is currently faulty or unreliable, you can also speak to our team about boiler repairs in West Sussex or whether replacement may be more cost-effective.
What Is the ECO4 Boiler Grant?
The ECO4 scheme is a government-backed energy efficiency programme delivered through energy suppliers to help low-income, fuel-poor, and vulnerable households improve their homes. It may help fund insulation, boiler repair or replacement, or other heating upgrades where eligibility criteria are met.
Through GOV.UK’s Energy Company Obligation guidance, households may be able to get help with energy-saving improvements if they claim certain benefits and live in private housing, or if they live in eligible social housing. Support can include insulation work and replacing or repairing a boiler or other heating upgrades.
You may be more likely to qualify if:
- You receive certain benefits
- You own your home or rent privately
- Your property has a low EPC rating
- Your home is expensive to heat
- Your household is considered low income or vulnerable
- Your current heating system is inefficient, broken, or unsuitable
ECO4 is not always a simple cash grant paid directly to the homeowner. Instead, qualifying work is usually arranged through participating energy suppliers, installers, or local authority routes.
To check the official guidance, visit the GOV.UK page for help from your energy supplier through the Energy Company Obligation.
Who Qualifies for ECO4 in 2026?
You may qualify for ECO4 in 2026 if you receive eligible benefits, live in private housing or eligible social housing, and your property has a low energy efficiency rating. Homeowners usually need an EPC rating of D, E, F, or G, while private rented homes may need an EPC rating of E, F, or G.
According to GOV.UK, eligible benefits may include:
- Universal Credit
- Pension Guarantee Credit
- Pension Savings Credit
- Income Support
- Income-based Jobseeker’s Allowance
- Income-related Employment and Support Allowance
- Child Benefit
- Housing Benefit
Eligibility can depend on your personal circumstances, your property, and supplier participation.
If you do not qualify through benefits, there may still be local authority routes through ECO Flex, depending on your council’s participation and local rules.
A good first step is to check your home’s EPC rating and contact your local council or energy supplier. You can also review GOV.UK’s official Energy Company Obligation guidance.
What Is the Boiler Upgrade Scheme?
The Boiler Upgrade Scheme is not a traditional gas boiler replacement grant. It provides upfront funding to help property owners replace fossil fuel heating systems with low-carbon heating, such as air source heat pumps, ground source heat pumps, and, in limited cases, biomass boilers.
Despite the name, the Boiler Upgrade Scheme is mainly about moving away from fossil fuel heating systems.
GOV.UK explains that the scheme can help cover part of the cost of replacing fossil fuel heating systems, including gas, oil, LPG, or electric systems, with a heat pump or biomass boiler.
The scheme is available in England and Wales and can apply to homes and some business properties.
Funding currently includes:
- Support towards air source heat pumps
- Support towards ground source heat pumps
- Support towards biomass boilers in limited eligible situations
You can read the official guidance on GOV.UK’s Boiler Upgrade Scheme page.
How Much Can You Get Through the Boiler Upgrade Scheme?
The Boiler Upgrade Scheme can provide upfront funding towards low-carbon heating, with grants of up to £7,500 available for eligible heat pump installations and lower support for eligible biomass boilers. The grant is normally applied for by the installer and deducted from the installation cost.
According to GOV.UK’s Find a Grant service, the Boiler Upgrade Scheme offers:
| Heating upgrade | Grant support |
|---|---|
| Air source heat pump | Up to £7,500 |
| Ground source heat pump | Up to £7,500 |
| Biomass boiler | Up to £5,000 |
This is not usually a route for replacing an old gas boiler with another gas boiler. It is most relevant if you are considering a low-carbon heating system.
Eligibility includes replacing an existing fossil fuel heating system, such as a gas, oil, LPG, or electric heating system. Biomass boilers are only eligible in rural properties not connected to the gas grid.
You can check the grant summary through GOV.UK’s Boiler Upgrade Scheme grant listing.
What Is the Warm Homes: Local Grant?
The Warm Homes: Local Grant is a government-funded scheme delivered through local authorities in England to help low-income households improve energy efficiency and install low-carbon heating. It may fund insulation, air source heat pumps, smart controls, solar panels, and other agreed improvements.
GOV.UK states that eligible households may receive free energy-saving improvements if they are on a low income, receive certain benefits, or live in a qualifying postcode area.
The scheme can include improvements such as:
- Wall, loft, and underfloor insulation
- Air source heat pumps
- Smart heating controls
- Solar panels
Eligibility usually depends on:
- Living in England
- Being in a privately owned home
- Having an EPC rating of D, E, F, or G
- Having household income of £36,000 a year or less, or meeting other eligibility routes
Your local council will usually arrange a home survey and organise agreed improvement work if you qualify.
You can start with the official GOV.UK Warm Homes: Local Grant application page.
What Local Heating Grants Are Available in West Sussex?
West Sussex homeowners may be able to access local heating, insulation, and low-carbon energy grants through local authority-backed schemes such as Warmer Homes. These schemes can support eligible households with improvements including insulation, air source heat pumps, solar PV, heating controls, and other energy-saving measures.
West Sussex Energy lists heating, insulation, and low-carbon heating grants available across the county. Its Warmer Homes scheme is aimed at eligible households in West Sussex and can support fully funded energy-saving improvements.
Local schemes may be especially useful if:
- Your household income is under the scheme threshold
- You receive means-tested benefits
- Your home has a low EPC rating
- You are an owner occupier or private tenant
- Your property is suitable for the recommended measures
West Sussex Energy lists measures such as insulation, air source heat pumps, solar PV, heating controls, and high heat retention storage heaters.
You can review current local support through West Sussex Energy’s heating and insulation grants page.
If your current boiler is not suitable for grant funding but is failing, Lock & Lindfield can still advise on practical options through our boiler installation service in West Sussex.
Has the Great British Insulation Scheme Ended?
Yes, the Great British Insulation Scheme ended on 31 March 2026, and installations under the scheme had to be completed by that date. Homeowners who missed the deadline should now look at other options such as Warm Homes: Local Grant, ECO4, or local authority funding.
The Great British Insulation Scheme, also known as GBIS, helped eligible homes access free or cheaper insulation.
Energy Saving Trust explains that GBIS supported people with some of the least energy-efficient homes to install measures such as cavity wall insulation or loft insulation.
Although GBIS has ended, improving insulation remains one of the most important ways to reduce heating demand. A new boiler or heat pump will perform better in a home that holds heat properly.
You can read Energy Saving Trust’s explainer on the Great British Insulation Scheme.
Are There Grants for Standard Gas Boiler Replacement?
In 2026, standard gas boiler replacement grants are limited and usually only available through targeted schemes such as ECO4 for eligible low-income, vulnerable, or fuel-poor households. Most homeowners will not receive a universal grant simply to replace an old gas boiler with a new one.
This is where many homeowners get confused. Online adverts often use phrases like “free boiler grant”, but the reality is more specific.
You may be able to access help if:
- Your boiler is broken or inefficient
- Your household meets income or benefit criteria
- Your home has a low EPC rating
- The improvement forms part of an approved energy-saving package
- An energy supplier or local authority confirms eligibility
If you do not qualify for a grant, replacement may still be worth considering if your boiler is over 10–15 years old, regularly breaking down, or increasing your energy bills.
A professional engineer can help you compare repair costs against replacement. You can explore Lock & Lindfield’s full range of boiler and heating services if you are unsure which route is best.
What Energy Bill Support Is Available in 2026?
Energy bill support in 2026 may include the Warm Home Discount, Winter Fuel Payment, and Cold Weather Payment, depending on your age, benefits, income, and circumstances. These schemes do not usually pay for a new boiler, but they can help reduce winter heating costs.
Useful support schemes include:
Warm Home Discount
The Warm Home Discount is designed to help eligible households with energy bills. Ofgem says the scheme runs in England, Scotland, and Wales and usually reopens in autumn, with eligibility confirmed for each scheme year.
You can check Ofgem’s Warm Home Discount eligibility guidance.
Winter Fuel Payment
The Winter Fuel Payment helps older people with heating bills. GOV.UK states that for winter 2026 to 2027, eligible people born before 28 June 1960 could receive between £100 and £300.
You can check GOV.UK’s Winter Fuel Payment guidance.
Cold Weather Payment
Cold Weather Payments are designed to help eligible households during periods of very cold weather.
You can check GOV.UK’s Cold Weather Payment eligibility page.
These schemes are worth knowing about, especially for vulnerable households, but they are not the same as boiler replacement funding.
How Do You Check If You Are Eligible for Boiler Funding?
To check if you are eligible for boiler funding in 2026, start by checking your benefits, household income, EPC rating, property ownership, heating system type, and local authority funding availability. Eligibility varies by scheme, so it is best to check official sources before agreeing to any work.
Use this step-by-step process:
- Check your EPC rating
Many schemes target homes rated D, E, F, or G. - Check your household income
Some schemes use income thresholds, such as £36,000 or less. - Check benefits eligibility
ECO4 and other schemes often focus on households receiving certain benefits. - Check your heating system
Funding may depend on whether you have gas, oil, LPG, electric, or no central heating. - Check local authority schemes
West Sussex residents should review local grant support as well as national schemes. - Use official websites
Always check GOV.UK, Ofgem, your council, or trusted energy advice sources. - Ask for written confirmation
Do not rely on verbal promises from cold callers or adverts.
If your boiler is unsafe, leaking, or not working, do not wait for funding checks before getting professional advice. A Gas Safe registered engineer should inspect urgent issues.
What Should You Watch Out for With Boiler Grant Claims?
Homeowners should be cautious with boiler grant claims that promise guaranteed free boilers, pressure you to sign quickly, request unusual payments, or avoid explaining eligibility. Genuine schemes have rules, checks, surveys, and approved delivery routes.
Be careful if someone:
- Guarantees funding before checking eligibility
- Says “everyone qualifies”
- Pressures you into signing immediately
- Refuses to provide paperwork
- Cannot explain which scheme they are using
- Asks for large upfront payments without clarity
- Avoids mentioning your EPC rating or benefits
- Will not confirm installer credentials
Government-backed schemes can be valuable, but they should be handled carefully. Always check the scheme through official sources and confirm who is doing the work.
For any gas boiler work, make sure the engineer is Gas Safe registered.
Should You Repair, Replace, or Apply for Funding First?
If your boiler is unsafe or completely broken, you should arrange professional advice immediately. If the issue is not urgent, check whether you may qualify for funding before committing to a repair or replacement. The right order depends on safety, urgency, eligibility, and long-term cost.
Here is a simple guide:
Apply for funding first if:
- Your boiler is working but inefficient
- You are on a low income or qualifying benefits
- Your home has a poor EPC rating
- You are considering wider home energy improvements
- You may qualify for ECO4, Warm Homes, or local support
Call an engineer first if:
- You have no heating or hot water
- Your boiler is leaking
- You smell gas
- Your carbon monoxide alarm is sounding
- Your boiler is displaying serious fault codes
- You are worried about safety
Consider replacement if:
- Your boiler is over 10–15 years old
- Repairs are becoming frequent
- Parts are hard to source
- Your heating bills are rising
- The boiler no longer heats your home properly
Lock & Lindfield can help homeowners understand whether a boiler repair, annual boiler service, or new boiler installation is the most practical next step.
Frequently Asked Questions
Can I get a free boiler grant in 2026?
Some eligible households may receive help with boiler repair or replacement through ECO4, but there is no universal free boiler grant for everyone. Eligibility depends on benefits, income, EPC rating, property type, and scheme rules.
Does the Boiler Upgrade Scheme pay for a new gas boiler?
No. The Boiler Upgrade Scheme is mainly for replacing fossil fuel heating systems with low-carbon heating, such as heat pumps or eligible biomass boilers. It is not a grant for replacing a gas boiler with another gas boiler.
What is the best boiler funding scheme in 2026?
The best scheme depends on your circumstances. ECO4 may help eligible low-income households with heating upgrades, the Boiler Upgrade Scheme supports heat pumps, and Warm Homes: Local Grant supports low-income households through local authorities.
Are there heating grants in West Sussex?
Yes, West Sussex Energy lists local heating, insulation, and low-carbon heating grants, including support through the Warmer Homes scheme for eligible households.
Should I wait for a grant before replacing my boiler?
If your boiler is unsafe or has completely failed, you should seek professional advice immediately. If it is still working but inefficient, it may be worth checking grant eligibility before committing to a replacement.
Conclusion
There are several boiler grants 2026 and heating funding routes available, but the right option depends on your home, income, benefits, EPC rating, and heating system. ECO4 may help some eligible households with boiler repairs or replacement, while the Boiler Upgrade Scheme supports low-carbon heating such as heat pumps. Warm Homes: Local Grant and West Sussex schemes may also help with insulation, heating controls, solar panels, and energy-saving improvements.
The most important thing is to check eligibility through official sources and get honest advice before making a decision.
At Lock & Lindfield, we help homeowners across West Sussex keep their heating systems safe, efficient, and reliable. Whether you need a boiler repair, annual service, or advice on replacing an ageing boiler, our team is here to help.
📞 Contact Lock & Lindfield today to speak to a trusted local heating engineer, or explore our full range of boiler and heating services.
