The 2025 Boiler Upgrade Scheme: Get Up to £7,500 Off a Heat Pump
The 2025 Boiler Upgrade Scheme , Up to £7,500 Off a Heat Pump in 2025
Are you thinking of upgrading your home’s heating system? If you live in England or Wales and you’re replacing a fossil-fuel boiler (such as gas or oil) with a low-carbon alternative like a heat pump, the government’s Boiler Upgrade Scheme could significantly reduce your cost.
In 2025 this scheme offers homeowners up to £7,500 off the cost of an air- or ground-source heat pump. Let’s explore how it works, who is eligible, what the savings might look like, and key things to check.
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What is the Boiler Upgrade Scheme?
The Boiler Upgrade Scheme (BUS) is a UK government initiative run by the Ofgem on behalf of the Department for Energy Security and Net Zero (DESNZ) that helps households switch from fossil-fuel boilers to low-carbon heating systems. According to official guidance you can obtain:
£7,500 off the cost of installing an air-source heat pump. Boiler Upgrade Scheme
£7,500 off for a ground-source heat pump (including water-source or shared ground loops).
£5,000 off a biomass boiler (but for many households a heat-pump may be the more relevant option).
In October 2023 the grant value for heat pumps was increased: for air-source from £5,000 to £7,500 and ground-source from £6,000 to £7,500.
The scheme aims to encouraging the uptake of low-carbon heating and help the UK meet its net-zero targets by 2050 (and nearer-term interim targets too) by reducing the reliance on gas boilers.
Who is eligible for The 2025 Boiler Upgrade Scheme?
Before you assume you qualify, check these eligibility conditions:
Eligible properties
Houses or small/medium non-domestic buildings in England or Wales.
The building must have a valid Energy Performance Certificate (EPC).
You must be replacing an existing fossil-fuel heating system (gas or oil) or an electric storage or panel heating system. You cannot use the grant if you are replacing an existing low-carbon heating system.
New-build homes are generally not eligible, though self-build may be.
Important exclusions / restrictions
You cannot receive the BUS grant if you have already received government support for a heat pump or biomass boiler previously.
Hybrid heating systems (e.g., a gas boiler + heat pump combination) are not eligible.
If you live in Northern Ireland or Scotland, separate schemes apply; BUS is primarily for England and Wales.
Other considerations with The 2025 Boiler Upgrade Scheme
Earlier, the scheme required certain insulation standards (for example cavity wall or loft insulation) before a heat-pump installation. But recent changes mean that homeowners may qualify even if they haven’t done these prior insulation upgrades.
What savings can you expect?
The headline is the £7,500 grant. This is deducted from the cost of your heat-pump installation (via your installer) so you upfront pay less.
Here’s a rough breakdown:
Suppose your quote for an air-source heat pump installation is £12,500. With a £7,500 grant, you pay around £5,000 (plus any other costs).
For ground-source systems, which tend to cost more, even with £7,500 off the remaining cost may be sizable.
Because the grant brings the cost of a heat pump closer to the cost of a new gas boiler (which might cost £2,500-£3,000) the financial difference is shrinking.
Additionally, because heat pumps operate more efficiently (they move heat rather than generate it by burning fuel) over time they can reduce your energy bills and carbon emissions. Make sure
your installer provides an estimate of running cost savings.
Why now is a good time to consider switching
The grant is already generous. The £7,500 rate is one of the most generous subsidies for home-heating in Europe.
Regulation and industry support are building. For example, the government is consulting on changes to the BUS and certification requirements, and is supporting greater heat-pump manufacturing capacity in the UK.
With rising interest in decarbonising homes, you may future-proof your property by installing a heat pump now rather than waiting for later.
Some installation barriers are being reduced (for example planning constraints).
What you should check before you commit to The 2025 Boiler Upgrade Scheme
Before you engage an installer and proceed, consider the following checklist:
Find an MCS-certified installer: The scheme requires your installer to be accredited under the Microgeneration Certification Scheme (MCS). Without this certification the grant may not apply.
Obtain quotes from multiple installers: Since cost varies regionally and by property type, getting at least two or three quotes helps ensure value.
Ensure your property is suitable: Heat pumps work best when homes are well-insulated and have suitable heating systems (such as underfloor heating or large radiators). Ask your installer to assess suitability.
Check the voucher process: The 2025 Boiler Upgrade Scheme grant is issued via the installer through a voucher. The voucher must typically be redeemed within a set time after installation. For example, for some systems, the voucher is valid for six months.
Understand ongoing running costs and savings: While the grant covers capital cost, you still face ongoing electricity cost (heat pump uses electricity rather than gas). Ask for expected annual savings.
Check existing heating system and pipework compatibility: Your existing radiators, pipework and system pressure may need alteration; factor in such additional costs.
Confirm that you are eligible: Property is in England/Wales, replacing fossil-fuel system, you haven’t already had a low-carbon heating subsidy, etc.
Time-sensitive: As with many grants, funding is limited and allocated on a first-come, first-served basis. Early application is advisable.
Potential challenges to be aware of
While the scheme is attractive, some hurdles are worth noting:
Upfront costs remain higher than a typical gas boiler even with the grant. You still pay for installation and possibly additional work (insulation, radiators, pipework).
Quality of installers and suitability of properties can vary: some homes may need substantial retrofit work to make a heat pump efficient.
Running costs depend on electricity vs gas pricing and your usage pattern. In some cases savings may be modest unless the property is efficient.
Although the scheme is designed to be simple, some homeowners have found the paperwork, eligibility checks or technical assessments a barrier. (Industry commentary highlights this.)
While the government has signalled future support and regulatory relief, the market for heat pumps is still scaling up — installer availability, supply chain, and cost pressures may persist.
Real-world example: A homeowner story
Imagine a semi-detached 3-bed home with an older gas boiler. The homeowner obtains three quotes: one for an air-source heat pump installation at £13,000, one for a ground-source at £21,000, and a standard new gas boiler at £3,000.
With The 2025 Boiler Upgrade Scheme grant of £7,500 applied to the air-source install, the cost drops to around £5,500 (plus any additional work).
If running costs drop year-on-year by, say, £300-£400 and the system life is 15-20 years (versus a boiler life maybe 10-15 years), then over the long term the investment starts to make sense — especially given the environmental benefit and future proofing.
The homeowner should check the condition of radiators, insulation, seek installer credentials and decide whether the property is a good fit for a heat pump now or may need additional upgrades first.
Final thoughts on The 2025 Boiler Upgrade Scheme
If you’re a homeowner in England or Wales considering replacing a gas or oil boiler, the 2025-era Boiler Upgrade Scheme offers a compelling incentive: up to £7,500 off a heat pump installation.
While it does not eliminate all cost and complexity, it significantly lowers the barrier to low-carbon heating. To get the most benefit: act early, choose a reputable installer, ensure your property is suitable, and understand both capital cost and running cost implications.
Moving away from fossil-fuel heating is increasingly important not just for your bills but for the planet. This grant represents a real opportunity to upgrade and future-proof your home. The upfront work may feel significant, but the payoff could be worth it.