Boiler Upgrade Scheme
Help towards replacing eligible heating systems with a heat pump or biomass boiler in a home or business building.
Personal & Business · Energy · England, Wales
Latest official GOV.UK guidance
Successfully checked 2026-10-05T08:09:39.716Z.
You could get a grant to install a heat pump or biomass boiler. Find out if you’re eligible and how to apply.
Overview
Through the Boiler Upgrade Scheme, you could get a grant to cover part of the cost of replacing fossil fuel heating systems with a heat pump or biomass boiler.
You can use the grant to replace a heating system in your home or a building used for your business.
Fossil fuel heating systems include oil, gas, electric or LPG (liquefied petroleum gas).
After you’ve checked you’re eligible, find out how to apply for the grant.
This scheme is open to people in England and Wales.
If you live in Scotland, you might be able to get an interest-free loan or a grant to make your home more energy efficient.
The Boiler Replacement Scheme in Northern Ireland is now closed. If you live in Northern Ireland, you can find out about energy saving grants in your area.
What you can get
You can get one grant per property. Current grants are available for:
£7,500 towards an air source heat pump (sometimes called an air-to-water heat pump)
£7,500 towards a ground source heat pump (including water source heat pumps and those on shared ground loops)
£5,000 towards a biomass boiler
£2,500 towards an air-to-air heat pump
Until March 2027, you can get an additional £1,500 towards an air source heat pump or ground source heat pump if both:
your property is heated by oil or LPG
you do not have a mains gas connection at the property
You cannot get a grant for a hybrid heat pump system (for example a combination of gas boiler and air source heat pump).
The system you install must meet certain standards, such as minimum efficiency levels (your installer can advise you on these).
The maximum capacity is:
45kWth for individual systems
70kWth if a heat pump is installed with one or more additional heat pumps
300kWth for shared ground loops
Find out more about heat pumps and biomass boilers.
You cannot get a grant to replace a low carbon heating system.
Check if you're eligible
You’re eligible for a grant if both of the following are true. You must:
own the property you’re applying for (including if it’s a business, a second home, or a property you rent out to tenants)
be replacing fossil fuel heating systems - such as oil, gas, electric or LPG (liquefied petroleum gas)
You’re still eligible if you’ve already had funding to make your property more energy efficient, for example by insulating it.
Your installer must commission and install the heat pump within 120 days of applying for the grant or it will not be eligible.
Check if your property is eligible
If you’re not sure whether your property is suitable for a low carbon heating system, speak to an MCS certified installer. They can tell you about your options.
Biomass boilers
You can get a grant for a biomass boiler if all the following are true:
your property is off the gas grid
your property is in a rural location (check the Ofgem guidance for property owners if you’re not sure)
your boiler has an emissions certificate showing that polluting emissions are kept to a minimum
You cannot get a grant to install a biomass boiler in a self build property.
Properties you cannot get a grant for
You cannot get a grant for:
most new build properties
social housing
a property that’s already been given government funding or support for a heat pump or biomass boiler
If you own a new build property
New build properties which the developer is still building are not eligible.
If you move into a finished new build with a fossil fuel boiler, you may be able to get a grant for a heat pump under the scheme.
If you own a self build property
Your self build property is eligible if:
you or the original owner built it yourself or you paid a builder to build it
it’s never been owned by a business or organisation
You’ll need to show your installer proof that your property is a self build if you built it yourself, for example, a copy of the title deeds.
If it was built by the original owner you do not need to provide any proof.
How to apply
Contact suitable MCS certified installers to get quotes for the work.
Confirm you’re eligible (your installer will tell you).
Agree a quote with your chosen installer.
The installer will apply on your behalf on the Ofgem website.
The value of the grant will be taken off the amount you pay for installation. This will be shown on your quotation and invoice.
What happens next
Ofgem will contact you to confirm that the installer is acting on your behalf. They might also contact you by phone or visit your property in order to check the installation.
MCS might contact you to carry out their own checks.
Get help
Contact Ofgem if you need help with the Boiler Upgrade Scheme.
Ofgem BUS.enquiry@ofgem.gov.uk Telephone: 0330 053 2006 Monday, Tuesday and Thursday, 9:30am to 4:30pm Wednesday, 9:30am to 12:30pm Friday, 9:30am to 4pm
If you have problems with your new heating system, speak to your installer first.
If you have problems with your installer, MCS can help you. Read their guidance on ‘What to do when things go wrong’.
This guidance takes precedence over the editorial overview below. Read the full guidance and application links on GOV.UK.
Editorial overview
What support is available?
A grant covers part of the cost of an eligible installation. The amount and technology requirements are set out in the current official guidance.
Who may be eligible?
- The property must be in England or Wales.
- The property, existing heating system and proposed installation must meet the scheme requirements.
- Check property ownership and any previous public funding restrictions before commissioning work.
How to apply
- Read the property and technology eligibility guidance.
- Find an appropriately certified installer and agree a quote.
- Follow the installer-led application process described on GOV.UK before work goes ahead.
Important things to know
- You may need to pay the difference between the grant and the installation cost.
- Scotland and Northern Ireland have separate energy-efficiency support arrangements.
Check Boiler Upgrade Scheme on GOV.UK
Editorial overview reviewed: .
GovDealFinder is independent and is not affiliated with HM Government. This is a curated directory, not a complete list or an eligibility decision. Rules, funding and application windows can change. Always check the official guidance before applying. Loans must be repaid; tax relief is not a cash grant.