Heat pump installation in Cardiff
A clear answer on whether a heat pump suits your Cardiff home, then a fixed price from an MCS certified installer.
Heat pumps in Cardiff homes
The Boiler Upgrade Scheme covers Wales, so Cardiff homeowners can claim the same £7,500 as anyone in England. The suburban semis to the north of the city are often the simplest homes to convert, with gardens and cavity walls. Bay-fronted terraces can work, but a small back yard and solid walls make it a closer call. Apartments rarely suit an individual unit.
The Boiler Upgrade Scheme gives £7,500 off an air source heat pump. Your MCS-certified installer claims it and takes it off your bill.
Victorian bay-fronted terraces: There is usually a back yard rather than a garden, so space for the unit decides it. The solid walls lose heat quickly and radiators often need upsizing.
Interwar and post-war semis in the northern suburbs: Often a sensible match, with a garden and side access for the unit and an airing cupboard for the cylinder. Topping up loft and cavity insulation improves running costs.
Modern apartments around Cardiff Bay and the centre: An individual unit is seldom possible without private outdoor space, and the management company or freeholder has to approve it.
Heat pump installation prices in Cardiff
| Job | Typical price | Fitting time |
|---|---|---|
| Air source heat pump, before any grant | £11,000 to £14,500 | 2 to 5 days |
| After the £7,500 Boiler Upgrade Scheme grant | £3,500 to £7,000 | grant applied by installer |
| Radiator upgrades, if needed | £300 to £600 each | same visit |
| Hot water cylinder | usually included | same visit |
Typical prices including VAT, checked October 2026. Your installer gives you a fixed price in writing before any work starts. More detail in our heat pump installation cost guide.
Is a new boiler the better call?
In a draughty or hard-to-insulate Cardiff home, a modern combi can still be the smarter buy. We will tell you straight.
See boiler replacement optionsAreas we cover around Cardiff
- Roath
- Cathays
- Canton
- Pontcanna
- Grangetown
- Splott
- Llandaff
- Whitchurch
- Rhiwbina
- Penarth
Also nearby: Heat pump installation in Swansea, Heat pump installation in Bristol, Heat pump installation in Gloucester
Heat pump installation in Cardiff: questions
Does the £7,500 grant apply in Wales?
Yes. The Boiler Upgrade Scheme covers both England and Wales, so a Cardiff home qualifies on the same terms. You need a valid EPC, an MCS certified installer and to be replacing a fossil fuel system such as a gas boiler. The installer claims it for you.
How much does a heat pump cost in Cardiff?
Before the grant, an air source heat pump typically costs £11,000 to £14,500 fitted. After the £7,500 grant, the usual range is about £3,500 to £7,000. Any larger radiators are included in the fixed quote rather than added later.
Do I need planning permission for a heat pump in Wales?
Many air source heat pumps on houses can go in without a planning application, but Wales sets its own permitted development rules and they are not identical to England's. Flats, listed buildings and conservation areas need extra care. Your installer checks the position against the Welsh rules.
Will a heat pump keep my bay-fronted terrace warm?
It can, but solid brick walls and big bay windows lose heat quickly. Most terraces need some draught-proofing or larger radiators, and the unit needs a suitable spot in the yard. If the numbers do not add up, we will recommend a new boiler instead.