Boiler Upgrade Scheme

What is it?

The government is providing grants to encourage property owners to install low carbon heating systems such as heat pumps, through the Boiler Upgrade Scheme (BUS). These grants can help property owners overcome the upfront cost of low carbon heating technologies.
The scheme is open to domestic and small non-domestic properties in England and Wales. It runs from 2022 to 2025.
You can get one grant per property:
£5,000 off the cost and installation of an air source heat pump
£6,000 off the cost and installation of a ground source heat pump
£5,000 off the cost and installation of a biomass boiler (please note we do not install these)

Homeowner eligibility

You may be eligible if:
You live in England or Wales
You own your property (whether this is a home or a small non-domestic property)
Your property has a current energy performance certificate (EPC), with no outstanding recommendations for loft or cavity wall insulation. You can check this here.
(If your property has recommendations for loft or cavity wall insulation your installer can still apply, but some insulation may need to be installed. A new EPC with no recommendations for loft or cavity wall insulations must be generated, by the time the installer claims the grant at the end of the project.)
Private landlords and second-home owners are eligible.

Product eligibility

Grants are only available for air source heat pumps, ground source heat pumps (including water source heat pumps and those on shared ground loops) and biomass boilers (Solum GB do not install biomass boilers)
Hybrid heat pump systems, for example a combination of a gas boiler and air source heat pump, are not eligible.
The new heating system must:
have been commissioned (that is, installed and fully checked by your installer) on or after 1 April 2022
be capable of meeting the full space heating and hot water requirements of your property
replace an existing fossil fuel heating system (such as oil, gas or electric)
meet certain technical standards, such as minimum efficiency requirements (your installer can advise you on these)
The installation cannot exceed the capacity of 45kWth (this covers most homes)
You cannot get funding for the replacement of existing low carbon heating systems.

Excluded properties

Grants are not available for:
social housing
new build properties (apart from certain self-builds)
properties that have already had government funding or support for a heat pump or biomass boiler
If you own a self-build property, to be eligible, a self-build must have:
been built mainly using the labour or resources of the first owner
not been owned by a business or organisation
You will need to provide proof to your installer that your property is a self-build, for example a copy of the title deeds.

How it works

  1. You will first need to find an MCS certified installer who is registered to take part in the Boiler Upgrade Scheme, like Solum GB.
  2. We will check if a heat pump installation at your property will be eligible for the grant.
  3. An estimated quotation will be given to give you a rough idea of the cost of the system so you can decide if a heat pump installation is within your budget.
  4. This quotation will be subject to a heat loss calculation survey with an independent surveyor, and a pre-installation walk-through survey with one of our engineers.
  5. An in-depth heat loss calculation survey will need to be completed by an independent surveyor – this will ensure that the heat pump we install will fully meet the space heating and domestic hot water demand of your household.
  6. For more information about the survey and why it’s necessary, click here.
  7. We will need to conduct a pre-installation walk-through survey with one of our engineers. During the survey we will confirm the location of the outside heat pump unit, the exact size of the replacement domestic hot water cylinder (if your existing one is not heat pump compatible), and if any radiator upgrades are necessary, confirm the size of the new radiators.
  8. After both surveys have been completed, we will be in a position to prepare our final quotation for you that will be used to apply for the Boiler Upgrade Scheme voucher.
  9. If you accept our quotation, we will apply for the grant voucher on your behalf.
  10. You will need to confirm with Ofgem (the overseer of the scheme) that you are happy for us to act on your behalf.
  11. Once a voucher is granted the installation can be scheduled. Most installations will last 3-5 working days.
  12. Ofgem may contact you to carry out checks on the installation once it has finished. This may involve a phone call or a visit to your property.

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232 Holdenhurst Road, Bournemouth, BH8 8AX