How Much Does a Heat Pump Cost to Install?

Article • Installation

How Much Does a Heat Pump Cost to Install in the UK?

Heat pump installation costs vary widely depending on the property, system design and installation complexity. Understanding the main cost factors can help homeowners plan more effectively.

Typical heat pump installation costs

Air source heat pump installations typically cost more than replacing a gas boiler.

System type Typical installed cost
Gas boiler replacement £2,500 – £5,000
Air source heat pump £8,000 – £15,000+

Boiler Upgrade Scheme grant

The UK Boiler Upgrade Scheme (BUS) provides a grant to help homeowners install low-carbon heating systems.

The current BUS grant provides up to £7,500 towards air source heat pump installations.

Main factors affecting installation cost

  • Heat pump size
  • Pipework modifications
  • Radiator upgrades
  • Hot water cylinder installation
  • Electrical work
  • Installation complexity

Additional system components

Many installations include additional components beyond the heat pump itself.

  • Hot water cylinders
  • Buffer tanks
  • Magnetic filters
  • Control systems
  • Electrical upgrades

Why installation costs vary so much

Every home is different, which means installation costs can vary significantly.

Factors such as insulation levels, system design and emitter sizing all influence the final price.

Long-term ownership costs

Installation cost is only one part of the overall picture. Homeowners should also consider:

  • Running costs
  • Maintenance costs
  • Equipment lifespan
  • Energy efficiency

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