Heat Pumps in Cardiff — 2026 Guide
Based on a typical system size, average energy prices and a typical home — your figure will differ.
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.
Heat Pumps Costs in Cardiff (2026)
| System size | Typical cost | Could save (est.) | Payback (est.) |
|---|---|---|---|
| 6kW | £6720–£8610 | up to £340/yr | ~13 yrs |
| 9kW (most common) | £9330–£11580 | up to £500/yr | ~12 yrs |
| 14kW | £12360–£18110 | up to £700/yr | ~11 yrs |
Source: Green Reach Energy research, July 2026. Prices are estimates and include installation and VAT. Actual costs may vary.
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Available Grants in Cardiff
The Boiler Upgrade Scheme offers up to £7,500 towards a heat pump in Cardiff.
Register interest →
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.
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
Frequently Asked Questions
How much do heat pumps cost in Cardiff?
Is there a grant for heat pumps in Cardiff?
The Boiler Upgrade Scheme offers up to £7,500 towards a heat pump in Cardiff.
How long is the payback period in Cardiff?
Do I need planning permission in Cardiff?
How do I find a good installer in Cardiff?
Cardiff on the map
