What boiler grants are available in the UK?
Heating your home in the UK can be more expensive for some users (who are using outdated boilers), and older boilers become less efficient. There are some government-backed schemes, such as boiler grants, which are available in 2026 for users to help them replace their old boiler system with a new updated system to improve energy efficiency and move toward greener technologies.
ECO4 Scheme – Free or Subsidised Boiler Replacements
The Energy Company Obligation 4 (ECO4) program is one of the primary initiatives that is still in operation as of early 2026. The UK government is supporting this project, which mandates that big energy providers assist low-income and fuel-poor homes in increasing their energy efficiency, particularly by replacing and upgrading their boilers.
In ECO4: A free or significantly subsidised A-rated boiler installation is available to qualified homes.
In general terms, individuals have to be getting qualified benefits like Employment Assistance, Pension Financial Assistance, Social Security Disability Insurance, or anything similar in order to apply.
Some programs enable locally administered Variable Qualification (LA Flex), which allows people who meet local income or vulnerability standards but do not receive benefits to still be eligible.
Boiler Upgrade Scheme/BUS – Grants for Low-Carbon Heating
The Boiler Upgrade Scheme is a great option if you are planning to shift from a traditional gas or oil boiler to a low-carbon alternative option. There are some key points about BUS, like-
For a ground or air source, approx dollar 7,500 can be applied for a heat pump.
Additionally, it provides incentives, usually in the region of £5,000, for biomass boilers that use wood pellets or other sustainable fuel.
In order to lower upfront expenses, the grant is given to the installer directly and subtracted from your final payment.
While these solutions are more expensive than standard boilers, the grant helps bridge the cost gap and can significantly lower running costs over time.
Regional Support Schemes
Regional support scheme across the UK, there are additional tailored programmes, like-
Warmer Homes Scotland provides energy-saving estimates to private tenants and homeowners, and grants of at least £10,000 are available for boiler or heating renovations.
The Affordable Warmth Scheme for Northern Ireland provides low-income homes with grant assistance for boiler and heating upgrades. These programs are designed to help eligible residents outside of England and Wales with their fuel poverty and energy costs.
Other Support & Local Council Funds
There are some additions to national schemes, some local councils and energy suppliers offer supplemental support for energy costs and boiler maintenance or replacement. For example, winter-time hardship funds may include help with heating system repairs, though eligibility and availability vary by area.
There are some boiler grants available if your boiler is old, inefficient, or struggling to meet your heating needs, it’s well worth looking into the boiler grants available in the UK in 2026. Whether you qualify for a free replacement under ECO4, a low-carbon upgrade with the BUS, or regional funding elsewhere in the UK, there are options that can significantly reduce your costs and improve home comfort.