Heat Pump Cost Calculator — UK Prices 2025
Heat Pump Cost Calculator
Enter your details for an instant estimate
Prices automatically adjust for your region
Fill in the details on the left to see your cost estimate
How much does heat pump cost in the UK?
Use our calculator above to get an accurate estimate based on your specific requirements. Prices are based on real quotes from UK tradespeople and updated quarterly.
What affects the cost of heat pump?
- Location: London and the South East are 15–40% more expensive than the national average.
- Size and complexity: Larger or more complex jobs cost proportionally more.
- Material quality: Budget, mid-range and premium specifications can vary by 2–3x.
- Time of year: Demand peaks in spring and summer — book in winter for better availability and pricing.
- Access: Difficult access (scaffolding, confined spaces) adds to labour costs.
How to save money on heat pump
- Get at least 3 quotes from different tradespeople.
- Book during quieter periods (January–March for most trades).
- Be flexible on start dates — tradespeople often discount for convenient scheduling.
- Supply your own materials where possible (but confirm with your tradesperson first).
- Combine jobs — having multiple trades on site at once can reduce overall costs.
How to find a good tradesperson
Always check reviews on Checkatrade, Rated People or MyBuilder. Ask for references from recent similar jobs. Ensure they are appropriately qualified and insured. Never pay the full amount upfront — a deposit of 10–25% is standard.
Frequently asked questions
How much does a heat pump cost in the UK?
An air source heat pump costs £8,000–£15,000 installed. After the £7,500 Boiler Upgrade Scheme grant, the net cost is typically £2,000–£8,000. Ground source heat pumps cost £15,000–£35,000 before the grant.
What is the Boiler Upgrade Scheme (BUS) grant?
The BUS grant provides £7,500 off the cost of an air or ground source heat pump. It is applied directly by your MCS-certified installer. Your property must have a valid EPC and not have an active RHI claim.
Are heat pumps cheaper to run than gas boilers?
It depends on your insulation and electricity tariff. A well-insulated home with a heat pump on a standard tariff typically costs similar to gas. With an Octopus Cosy or Economy 7 tariff, heat pumps can be significantly cheaper.
Do heat pumps work in cold weather?
Yes. Modern air source heat pumps work efficiently down to -20°C. They are less efficient in very cold weather (COP drops from 3.5 to 2.0), but still produce more heat energy than the electricity they consume.
Do I need to upgrade my radiators for a heat pump?
Possibly. Heat pumps work at lower flow temperatures (45–55°C vs 70–80°C for gas). Older, undersized radiators may need upgrading to larger ones. A heat pump installer will carry out a heat loss calculation to determine this.