Air source heat pump installed on a UK home

Heating Solutions

Air Source Heat Pumps UK

Grants Up to £30,000. Free Expert Advice.

Air source heat pumps are an efficient, low-carbon alternative to gas boilers. UK homeowners can access the Boiler Upgrade Scheme (£7,500, no income test) or the Warm Homes Plan (up to £30,000). Cucumber Eco helps you find out which scheme applies to your property.

Check Your Eligibility Free Full Guide to Heat Pump Grants

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£7,500

Boiler Upgrade Scheme grant

£30,000

Max Warm Homes Plan grant

300%+

Efficiency vs gas boilers

Free

Eligibility check with Cucumber Eco

What Is an Air Source Heat Pump?

An air source heat pump (ASHP) extracts heat from outside air and uses it to warm your home and hot water. Unlike a gas boiler, which burns fuel, a heat pump moves existing heat energy from one place to another. For every unit of electricity consumed, a well-installed heat pump typically produces three or more units of heat, making it highly efficient and significantly lower in carbon emissions.

Air source heat pumps are suitable for most UK property types and work in temperatures as low as minus 20 degrees Celsius. When installed alongside good insulation, they deliver consistent, comfortable warmth and improve a property's EPC rating significantly.

Check Eligibility Free

Air source heat pump unit installed outside a UK home

Heat Pump Grant Options in 2026

There are three main funding routes for air source heat pump installation in the UK. Eligibility and grant levels differ between schemes.

Boiler Upgrade Scheme: £7,500

A government grant of £7,500 towards an air source heat pump, open to any eligible homeowner in England or Wales with no income test. The grant is applied directly by your MCS-accredited installer.

Full BUS eligibility criteria

Warm Homes Plan: Up to £30,000

For households with an EPC rating of D, E, F or G and income under £36,000 per year (or in an IMD decile 1 or 2 area). Can fund heat pump installation alongside insulation and other measures. Learn more about the Warm Homes Plan.

Warm Homes Local Grant

Delivered by local authorities for households who may not qualify under the national Warm Homes Plan. Criteria vary by area. Cucumber Eco can check whether a local scheme applies to your postcode.

For a full breakdown of eligibility criteria and how each scheme works, visit our detailed air source heat pump grants guide.

Why Choose Cucumber Eco for Heat Pump Advice

✓ Free property suitability assessments with no obligation
✓ Eligibility checks across all funding routes including BUS and the Warm Homes Plan
✓ Coordination with MCS-accredited installers
✓ 0% finance options for properties that do not qualify for grants
✓ Ongoing support from initial assessment to completed installation

Get a Free Heat Pump Eligibility Check

Tell us about your property and we will assess your eligibility for BUS, Warm Homes Plan, and Warm Homes Local Grant funding. Completely free, no obligation.