Boiler Upgrade Scheme (BUS)

up to £9,000 Government Grant

To help Homeowners and small-non-domestic building cover the cost and installation of a heat pump.

What is it?

Government initiative in England and Wales supports decarbonisation of homes and small non-domestic buildings by providing upfront capital to replace fossil fuel heating with efficient, low carbon systems like heat pumps and biomass boilers.

Up to £9,000 off!

Home owners and small-non-domestic building can receive up to £9,000 towards cost and installation of an air or ground source heat pump.

Saving an average of 65% of the cost of a new heat pump and installation.

Maximising efficiency without compromising comfort.

Our dedicated team ensures efficient and comfortable service from the BUS application to heat pump installation.
We prioritise a stress-free transition to energy efficiency for your comfort.

Switch to low carbon heating

To meet the UK’s objective of achieving net zero emissions by 2050, it is essential to decarbonise heating systems in buildings. The Boiler Upgrade Scheme (BUS) offers upfront grants to encourage the adoption of low carbon heating solutions in homes and small non-domestic buildings across England and Wales.

Grant Details

The scheme provides capital grants of up to £7,500 to motivate property owners to transition from fossil fuel heating to more efficient, low carbon systems such as heat pumps and biomass boilers.
Notably, in July 2026, the grant for off-gas grid properties utilising oil or LPG will be temporarily increased to £9,000.

This grant is applicable when replacing an existing fossil fuel boiler or constructing an eligible new self-build home.

Benefits of the Scheme

This initiative assists property owners in managing installation expenses, encourages the adoption of sustainable heating solutions, and enhances awareness of the advantages of low carbon systems. The BUS is a crucial component of the UK’s strategy for a sustainable energy future and for reducing carbon emissions.

Grant Levels for Cost and Installation

The following grant amounts are available:

£7,500: Air Source Heat Pump
£7,500: Ground Source Heat Pump
£2,500: Air-to-Air Heat Pump
£5,000: Biomass Boiler
£9,000: Off-grid homes heated by oil or LPG can qualify for an increased grant of £9,000 for either an air-to-water or ground source heat pump.

These grants help property owners overcome the upfront cost of installing a low carbon heating system.

To make the application for the scheme as simple as possible, it will be led by your chosen installer or Ultimate Renewables Supplies, with an opportunity for you to give consent that you are happy to proceed with the application, call us on 01869 929042 for more details.

Your installer

Your chosen installer will need to be certified by the Microgeneration Certification Scheme (MCS). MCS is a nationally recognised standards organisation that gives you assurance of the quality of your product and competence of your installer. It also means your installer complies with high consumer protection standards.

Ultimate Renewables Supplies are MCS certified therefore can file for the grant on behalf of your installer, making it even easier for homeowners to take advantage of this opportunity.

What will your chosen Installer do?

Instruct Ultimate Renewables Supplies to apply to Ofgem, the scheme administrator, for a grant voucher.
Provide your details to Ofgem. Ofgem will email you, asking you to consent to the installer applying on your behalf.
Complete the installation in line with industry standards and scheme requirements.
Redeem the voucher and receive the grant following installation and commissioning.

Call us today for more details on selecting an installer

Your installer will work with you to ensure that your property and technology meet the full range of eligibility requirements. These are the key requirements:

Your property must be a home or small non-domestic building in England or Wales. The maximum installation capacity of 45kWth covers the vast majority of these properties.
Your property must have a valid energy performance certificate
You can still apply if you’ve received separate funding for energy efficiency upgrades such as insulation, doors or windows.
The commissioning date of your low carbon heating system must be on or after 1 April 2022.

You must be fully replacing an existing fossil fuel system such as an oil or gas boiler, or an electric heating system such as storage or panel heaters. Funding will not be available for the replacement of existing low carbon heat systems.
New-build homes and social housing are not eligible for the Boiler Upgrade Scheme, although self-build properties are eligible.
Biomass boilers are only eligible in rural locations and in properties off the gas grid.

You can check to see if your home has an energy performance certificate by searching here: www.gov.uk/find-energy-certificate