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Boiler Upgrade Scheme UK 2026: Get Up to £7,500 Towards a Heat Pump

SYM

The Boiler Upgrade Scheme (BUS) is a UK government grant programme that pays £7,500 towards the installation of an air source heat pump, £7,500 for a ground source heat pump, or £5,000 for a biomass boiler in your home. It's designed to accelerate the switch away from gas boilers ahead of planned future restrictions on new gas boiler installations. But with heat pumps costing £8,000–£15,000 to install and potentially higher running costs unless your home is well-insulated, the decision to switch requires careful financial analysis.

What Is the Boiler Upgrade Scheme?

The Boiler Upgrade Scheme (BUS) provides upfront capital grants to homeowners in England and Wales who want to replace an existing fossil fuel heating system (gas boiler, oil boiler, electric storage heaters) with a low-carbon alternative. The grant is paid directly to your MCS-certified installer, who deducts it from your installation quote — you only pay the balance. The scheme runs until March 2028. There are no income or property price limits. The grant is not means-tested. However, there are property requirements: you need a valid EPC (Energy Performance Certificate) with no outstanding loft or cavity wall insulation recommendations before you can apply.
  • Air source heat pump grant: £7,500
  • Ground source heat pump grant: £7,500
  • Biomass boiler grant: £5,000
  • Available in England and Wales only
  • No income limit — any homeowner can apply
  • Property must have valid EPC, with no outstanding basic insulation recommendations

How to Apply for the Grant

You don't apply to the Boiler Upgrade Scheme directly — your MCS-certified installer applies on your behalf as part of the installation. Find an MCS-certified heat pump installer via mcscertified.com or the Find a Tradesperson tool on GOV.UK. Get 3 quotes. Check that each installer will claim the BUS grant (not all do). Before installation, ensure your EPC is up to date and doesn't flag outstanding loft or cavity wall insulation requirements — if it does, you'll need to have that insulation installed first (the installer can advise). After installation, the installer submits the grant application and receives the £7,500 directly — it should be clearly shown as a deduction on your invoice.
  • Find certified installer: mcscertified.com or GOV.UK 'Find a Tradesperson'
  • Get 3 quotes — prices vary significantly
  • Confirm installer will claim BUS grant before proceeding
  • Update your EPC before installation if it's over 10 years old
  • Tackle any outstanding insulation recommendations first

Will a Heat Pump Actually Save You Money?

This is the most important question — and the honest answer is: it depends. Heat pumps are more efficient than gas boilers (producing 3 units of heat per 1 unit of electricity), but electricity costs roughly 3–4x more per kWh than gas. The net result is that running costs can be similar to a modern gas boiler for well-insulated homes, or higher for poorly insulated ones. The financial case improves as: electricity prices fall relative to gas (expected over the medium term as renewables grow), your home is better insulated (larger radiators, underfloor heating, good EPC rating), and you have solar panels generating cheap electricity. The upfront cost after the grant (£1,000–£7,500 depending on your home) is typically recovered in 8–15 years in running cost savings — longer in poorly insulated homes.
  • Heat pump efficiency: ~3x more efficient than gas boiler per unit of energy
  • But electricity costs 3–4x more than gas per kWh
  • Net: broadly similar costs in well-insulated homes
  • Better savings if: good insulation, underfloor heating, solar panels
  • Typical payback period after grant: 8–15 years

Other Energy Efficiency Grants Worth Knowing

The BUS isn't the only financial support available for home energy upgrades. The Great British Insulation Scheme and ECO4 scheme can pay for loft insulation, cavity wall insulation, and solid wall insulation for homeowners on low incomes or benefits — potentially free. The Home Upgrade Grant (HUG2) targets off-gas-grid homes and can cover multiple upgrades including solar, insulation, and heat pumps. Local authorities also occasionally offer additional grants — check your council's website. The Energy Company Obligation (ECO4) is specifically for fuel-poor households. Smart Export Guarantee (SEG) pays you for solar electricity exported to the grid. Stacking multiple grants and schemes can significantly reduce the cost of a full home decarbonisation.
  • ECO4/GBIS: free insulation for eligible low-income/benefit households
  • Home Upgrade Grant: off-gas-grid homes, multiple upgrades
  • Smart Export Guarantee: paid for solar electricity exported to grid
  • Local authority grants: check your council website
  • Stack schemes: combine BUS + insulation grant for maximum benefit

Frequently Asked Questions

Can renters apply for the Boiler Upgrade Scheme?+

No — BUS is for homeowners only, including landlords upgrading rental properties (which can claim the grant too).

My home has no gas connection — can I still get the grant?+

Yes — in fact, the BUS is particularly beneficial for off-gas-grid homes currently on oil heating, which is expensive to run and has no government future.

Will I need to replace my radiators with a heat pump?+

Sometimes — heat pumps work best with larger surface-area radiators or underfloor heating. An installer will assess whether your existing radiators are suitable.

What about maintenance costs?+

Heat pumps generally require an annual service (~£100–150) and have fewer mechanical parts than gas boilers. Most come with 5–10 year manufacturer warranties.

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