Heat Pump Costs 2026: Factors, Calculator & Running Costs
Air source heat pumps
Ground source heat pumps
Installation factors
Running costs
Grants & savings
Quick cost snapshot:
- Heat pumps typically cost £7,000 to £30,000+ to buy and install.
- An air source heat pump costs around £10,000 on average for a typical 3‑bed home.
- A ground source heat pump is usually more expensive (often £24,000+ for a horizontal installation).
- The Boiler Upgrade Scheme can cut the cost by £7,500 (England & Wales) if you qualify.
How much does a heat pump cost in the UK?
Heat pump pricing depends mainly on the type of heat pump you choose, its capacity (kW), your home’s insulation level, and the complexity of installation. Even two identical homes can get different quotes because of layout, pipework, heating controls, and radiator upgrades.
Typical total range
£7k–£30k+
Installed cost (varies by system & home)
Typical air source total
~£10k
Average for many UK homes
Heat pump costs by type
| Heat pump type | Typical installed cost | Best for |
|---|---|---|
| Air source (ASHP) | Around £10,000 on average | Most UK homes, especially with decent insulation |
| Ground source (GSHP) | Often £24,000+ (horizontal) and can be significantly higher for boreholes | Homes with space for ground loops, long-term performance focus |
| Water source | Often £6,000–£11,000 (site dependent) | Properties with access to a suitable water source |
| Air-to-air (single-room or multi-split) | Commonly £3,000–£15,000 | Room-by-room heating & cooling (not the same as whole-home hot water systems) |
How much do air source heat pumps cost?
Air source heat pumps are normally the cheapest “whole-home” heat pump option. A typical installed system for a three-bedroom house often comes in around £10,000, but larger homes or homes needing extra upgrades can cost more.Cost split (typical): A big chunk of the price is installation labour and commissioning. In many quotes, the unit itself can be roughly half of the total, with the rest covering installation, controls, pipework changes, and setup.
What’s the cheapest heat pump option?
The lowest-cost heat pump setups are usually air-to-air single-room systems (best for individual spaces). If you want a system to heat your whole home with hot water, an air source heat pump is normally the most affordable route.How much do ground source heat pumps cost?
Ground source heat pumps are typically more expensive than air source models because installation is more complex. Prices depend heavily on whether you can do a horizontal ground loop or need a vertical borehole installation.| Ground source install type | Typical cost | Why it costs more |
|---|---|---|
| Horizontal ground loop | Around £24,000 (typical quote range) | Needs significant outdoor space for buried pipe loops |
| Vertical boreholes | Can be around £49,000 (typical quote range) | Drilling is specialised, time-consuming, and equipment-heavy |
Space requirement: Horizontal ground loops often need a large area of land, while boreholes reduce surface space needs but increase drilling cost.
Heat pump installation costs (what you’re paying for)
A heat pump install is more than just swapping one unit for another. Installers usually include system design, controls, commissioning, and any changes needed to make your home run efficiently at lower flow temperatures.Common installation add-ons that can increase the quote
- Hot water cylinder upgrades (if your current setup isn’t compatible)
- Radiator upgrades (some homes need larger radiators to deliver enough heat)
- Pipework changes and system flushing
- Electrical work (new circuits, consumer unit upgrades)
- Heating controls and system balancing
- Insulation improvements (not always required, but often recommended)
Typical expectation: Many homes won’t need every radiator changed — but it’s common to replace some radiators with larger ones so the system can heat the home effectively at lower temperatures.
Heat pump running costs
Running costs vary depending on:- Electricity unit price and tariff
- Heat pump efficiency (often described as COP / SCOP)
- How well your home is insulated and draught-proofed
- Flow temperature settings and heating schedule
- Hot water use (showers, baths, household size)
Important: The most efficient heat pumps usually cost the least to run because they produce more heat per unit of electricity used.
Heat pump grants and how much they can reduce the price
The biggest way to cut heat pump costs is through available grants. In England and Wales, the Boiler Upgrade Scheme offers £7,500 off eligible air source and ground source heat pump installations (installer applies on your behalf).Grants (pros)
- Can reduce the upfront cost significantly
- Installed discount is usually applied directly to your quote
- Makes payback faster for many homes
Grants (cons)
- Eligibility rules apply
- Must use a qualified installer route
- Not every property type is suitable
How to reduce your heat pump quote
If you want the best price (and performance), the biggest wins usually come from preparation and comparison:- Get multiple like-for-like quotes and check exactly what’s included.
- Improve insulation (loft, cavity, draught-proofing) before sizing the system.
- Ask about radiator requirements early so there are no surprises later.
- Check grant eligibility (and confirm the installer will apply it correctly).
- Ask about warranty and servicing and compare across installers.
Are heat pumps worth it?
For many UK homes, a heat pump can be worth it over the long term, especially when you factor in grant support and the potential for lower carbon heating. The best results usually come from pairing a heat pump with good insulation and a well-designed heating setup.Next steps
- Work out the right heat pump type (air source vs ground source).
- Check which upgrades you might need (cylinder, radiators, insulation).
- Compare quotes and confirm the grant discount is included.