Air-to-air heat pumps across South Glamorgan
We size every heat pump in Cardiff for a cold winter day, then check the cooling side is right for summer. Ask at your Cardiff survey whether the Boiler Upgrade Scheme grant could apply to your home. South Wales summers can be warm and humid, and winters damp, so a reversible system earns its keep all year.
Prices in South Glamorgan
Air-to-air heat pumps in South Glamorgan typically come in at £2,695–£10,545 for 2–5 rooms including VAT, based on South and Mid Wales rates. It is a touch below the UK middle, as trade rates in South and Mid Wales tend to be. The biggest variables are the pipe route, access for the outdoor unit and the state of the consumer unit, all of which the survey settles. For reference, the Small home option in South Glamorgan (three or four rooms heated and cooled) usually comes to about £4,095–£6,845.
Two rooms
Living room and main bedroom on one outdoor unit.
Small home
Three or four rooms heated and cooled.
Whole home
Five or more rooms, sized to replace the existing heating.
Prices are shown before any Boiler Upgrade Scheme grant. The £2,500 air-to-air grant applies only to eligible homes in England and Wales, using an MCS-certified heat pump installed by an MCS-certified installer, who applies for the grant and deducts it from the price. We confirm eligibility, and which installer applies, before you commit.
Guide prices show VAT at 20%. HMRC treats most fixed air conditioners and air-to-air heat pumps installed in homes as energy-saving materials, zero-rated until 31 March 2027 when we supply and fit them. If your installation qualifies, your quote shows 0% VAT and a lower price. Servicing, repairs, cleaning and controls are charged at 20%.
Planning and permissions
Since 1 June 2026, Welsh permitted development rules for outdoor units closely match England's: up to 1.5 m³, two units on a detached home, one on other homes, and MCS 020a noise compliance. Listed buildings need consent, and conservation areas have extra restrictions on units facing a road.
If your home in South Glamorgan is replacing fossil fuel or electric heating, and no gas, oil or LPG boiler stays in use, an MCS-certified air-to-air heat pump may qualify for the £2,500 Boiler Upgrade Scheme grant, which the MCS-certified installer claims and deducts from the price.
The survey
A survey in South Glamorgan usually takes one to two hours. We measure the rooms, check the walls and the consumer unit, agree the outdoor unit position with you and photograph the pipe routes. Surveys in South Glamorgan cover heat gain, pipe routes, electrics, access and noise to the nearest neighbour, so surprises on the day are rare.
What is included
Included with air-to-air heat pumps across South Glamorgan:
- Advice on running settings and tariffs
- Grant eligibility check for the Boiler Upgrade Scheme
- Pressure test, vacuum and commissioning
- Free survey with a room-by-room heat-loss calculation
- Outdoor unit placed for airflow and noise compliance
- Indoor units sized for winter heating, not just cooling
Towns in South Glamorgan
Pick your town for local details, or see every service in South Glamorgan.