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Heat Pumps

Heat Pumps in Cardiff — 2026 Guide

By Priya Sharma, Contributor · Updated April 2026 · Cardiff, South Glamorgan

Heat Pumps hero image
Quick answer: Heat Pumps in Cardiff cost between £7830 and £13690 installed (2026 prices). The average homeowner may save an estimated £410 per year on energy bills. Government support: grants may be available for eligible installations.
£10870
Est. installed cost
£410/yr
Est. annual saving
~12 yrs
Est. payback
1557 hrs
Sunshine hours

Is Cardiff a Good Place for Heat Pumps?

The area’s housing stock includes a range of properties suited to heat pumps installations throughout Cardiff. Combined with Wales’s energy prices, heat pumps installations here may offer good value (individual results will vary).

Cardiff has a population of 362,000, and the area falls within the Wales region. We recommend getting at least 3 quotes to compare prices.

Cardiff

Heat Pumps Costs in Cardiff (2026)

System size Typical cost Est. annual saving Est. payback
6kW £6720–£8610 £340/yr 13 yrs
9kW (most common) £9330–£11580 £500/yr 12 yrs
14kW £12360–£18110 £700/yr 11 yrs

Source: Green Reach Energy research, March 2026. Prices are estimates and include installation and VAT. Actual costs may vary.

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Available Grants in Cardiff

A government grant of up to £7,500 is available for eligible installations.

Heat Pumps grants in Cardiff

Find Installers in Cardiff

We recommend getting at least 3 quotes from qualified installers before making a decision. Check reviews, ask for local references, and make sure warranties are clearly stated in writing.

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What to check before hiring an installer in Cardiff

  • Qualifications — check the installer holds relevant qualifications and certifications for heat pumps before signing any contract
  • Local references — ask for completed jobs in Cardiff or South Glamorgan
  • Reviews — check online reviews before committing
  • Warranty — product and workmanship warranties should be clearly stated in writing
  • 3 quotes minimum — we recommend comparing at least three quotes to ensure you get a fair price
Heat Pumps installer in Cardiff

Frequently Asked Questions

How much do heat pumps cost in Cardiff?
Heat Pumps in Cardiff cost between £7830 and £13690 installed. A typical mid-range system costs around £10870 including installation and VAT (estimated, based on our research).
Is there a grant for heat pumps in Cardiff?
Yes. The up to £7,500 government grant is available for eligible installations. Use a qualified installer to claim it.
How long is the payback period in Cardiff?
The estimated payback period in Cardiff is around 12 years, based on estimated annual savings of around £410. Actual payback depends on your property insulation, system size and electricity tariff.
Do I need planning permission in Cardiff?
Most heat pumps installations fall under permitted development rights and do not require planning permission. However, listed buildings, conservation areas and flats may need approval. Always check with your local planning authority in Cardiff before installation.
How do I find a good installer in Cardiff?
We recommend getting at least 3 quotes from qualified installers. Check online reviews and verify that the installer holds relevant qualifications before signing any contract.