BrightGrid EnergyBrightGrid
Heat Pumps

Heat Pump Installation Cost UK 2026: Air-Source vs Ground-Source

Sarah Kimani· 1 min read

Heat pump installation costs vary substantially because every property is different. The heat-loss characteristics of the building, heating system, outdoor space, cylinder requirements, electrical work and system design all affect the final project cost.

Air-source heat pump installation

Air-source heat pumps extract heat from outdoor air and transfer it into the property. They are generally easier to install than ground-source systems because they do not require extensive ground collectors.

Ground-source heat pump installation

Ground-source systems extract heat from the ground using buried pipework or boreholes. They can provide efficient heating but usually involve more significant installation work because of the ground infrastructure.

FactorAir-sourceGround-source
Main heat sourceOutdoor airGround
GroundworksUsually limitedUsually significant
Space requirementOutdoor unit and associated equipmentCollector area or borehole access
Installation complexityGenerally lowerGenerally higher
Suitable propertyMany property typesProperties with suitable land or drilling access

What does a heat pump installation include?

  • Heat pump unit
  • Hydraulic components
  • Hot water cylinder where required
  • Controls
  • Electrical connection
  • Pipework
  • Heating emitter modifications where necessary
  • Commissioning
  • System balancing
  • Installation certification

Why heat-loss calculations matter

A heat pump should be sized around the building's heat demand rather than simply replacing an existing boiler with an equivalent output. A proper heat-loss assessment helps determine the required capacity and operating conditions.

Can solar panels work with a heat pump?

Yes. Solar can offset some of the electricity used by a heat pump. Because solar generation is seasonal, the grid will normally remain part of the heating system during periods of low solar production.

Do not compare heat pumps by equipment price alone

The quality of the design and installation can have a major effect on performance. Compare the complete system, heat-loss calculations, controls and commissioning process.

Explore heat pump installation

Assess your property, heating demand and potential integration with solar and battery storage.

Explore Heat Pumps

Frequently asked questions

How much does a heat pump cost in the UK?

The cost depends on the heat pump type, property, heating system, electrical work, cylinder, pipework and installation complexity.

Is air-source or ground-source heat pump better?

Neither is universally better. Air-source systems can be easier to install, while ground-source systems can be attractive where suitable land or drilling access is available.

Can solar power a heat pump?

Solar electricity can offset some of a heat pump's electricity consumption, although seasonal differences between solar generation and heating demand remain.

Does a heat pump need new radiators?

Not always. Existing radiators may be suitable depending on the property's heat-loss characteristics and the temperatures required. A system assessment should determine whether changes are necessary.

SK

Sarah Kimani

Systems Designer at BrightGrid Energy

Ready when you are

See what this means for your home.

Two minutes of questions, seven system options, modelled against your own numbers.

Check Your Savings