Important notice
Costs quoted are compiled from installer websites, industry surveys, and trade body publications. Actual costs vary significantly by property, location, and system specification. Always get multiple quotes from MCS-certified installers for accurate pricing.
Heat Pump Cost Breakdown
Air source
Air source heat pump
Ground source
Ground source heat pump
Totals are the middle half of installs paid under the Boiler Upgrade Scheme in 2026 Q2 (April to June). The item lines are typical splits, not part of that data. Source: Boiler Upgrade Scheme (BUS) monthly statistics, England and Wales: July 2026 (Department for Energy Security and Net Zero, published 27 August 2026).
Additional costs to consider
Heat output
Radiator upgrades
Heat pumps operate at lower flow temperatures than gas boilers. Some radiators may need upsizing for adequate heat output.
Distribution
Underfloor heating
Ideal pairing with heat pumps due to lower water temperatures. Cost depends on floor area and whether it's a retrofit or new build.
Fabric
Insulation improvements
Good insulation reduces the heat pump size needed. In England, lower-income households in a home rated EPC D to G may have this funded through the Warm Homes: Local Grant; Wales, Scotland and Northern Ireland run their own schemes.
Check Your £7,500 Heat Pump Grant Eligibility
The Boiler Upgrade Scheme can reduce your heat pump cost by £7,500. Check your eligibility.
Key eligibility factors:
- Replacing gas/oil/LPG boiler
- Property suitable for heat pump
- England or Wales
- +£1,500 if on oil/LPG with no mains gas, until March 2027
Check your property against the live MHCLG EPC register to see your current band and the schemes you may qualify for — free, in under a minute.
Check your propertyWhat affects your heat pump cost
Property size
Larger homes need more powerful systems. A 3-bed semi might need a 7–9kW unit, while a 5-bed detached could need 12–16kW, significantly affecting the unit cost — the leading heat pump brands each cover that range with different units.
Insulation quality
Well-insulated homes need smaller, cheaper systems. Poorly insulated homes may need a larger unit plus insulation improvements before installation.
Existing system
If your existing pipework and radiators are compatible, installation is simpler and cheaper. Older systems may need significant modification.
Location
Installation costs vary by region. Urban areas typically have more installer competition, while rural properties may incur additional travel charges.
Get accurate heat pump quotes
Connect with MCS-certified installers for accurate quotes based on your property. All installers can apply for the £7,500 BUS grant on your behalf.
One matched certified installer. Never a list. No obligation.
Related guides
£7,500 grant
Boiler Upgrade Scheme
The government grant that takes £7,500 off your heat pump cost. Eligibility and how to apply.
Read guide →Insulation
Free insulation schemes
Insulate first, then install a heat pump. Better insulation means a smaller, cheaper system.
Read guide →Boilers
New boiler costs 2026
Compare heat pump costs with the price of a new gas boiler replacement.
Read guide →Get your heat pump quotes
MCS-certified installers can apply for your £7,500 grant and provide accurate pricing for your property.