Wall-mounted air conditioning across South Glamorgan
Where a home in Cardiff faces the street, the outdoor unit usually goes at the rear, out of sight. A single wall-mounted unit is often all a bedroom or sunny living room in Cardiff needs. South Wales summers can be warm and humid, and winters damp, so a reversible system earns its keep all year.
Prices in South Glamorgan
Guide prices around South Glamorgan run from £1,045 to £2,695 per room including VAT. That sits a little below the UK middle, reflecting typical South and Mid Wales labour rates. What moves a quote in South Glamorgan up or down is mostly pipe length, how high the outdoor unit goes, and whether a new electrical circuit is needed. On our South and Mid Wales figures, the Popular option (quieter mid-range unit with Wi-Fi control and better seasonal efficiency for a living room) is about £1,445–£1,995.
Essential
Reliable 2.5–3.5 kW unit for a bedroom or study, standard pipe run, basic remote.
Popular
Quieter mid-range unit with Wi-Fi control and better seasonal efficiency for a living room.
Premium
Design-led or very quiet model, larger capacity or concealed pipework through a void.
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
Wales removed its old 3 m boundary rule on 1 June 2026, so most houses in South Glamorgan can now have an outdoor unit under permitted development if it meets the MCS 020a noise condition. Listed buildings still need consent, and conservation areas have extra restrictions.
The survey
We book surveys in South Glamorgan at a time that suits you, including early evenings by arrangement, and send the written quote afterwards. 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 wall-mounted air conditioning across South Glamorgan:
- Insulated copper pipework, drain and interconnecting cable
- Handover of the remote, Wi-Fi app (where fitted) and filter cleaning
- Nitrogen pressure test and deep vacuum before commissioning
- Free site survey and room heat-gain check
- Supply of an R32 inverter unit sized to the room
- Core-drilled wall penetration and sealed sleeve
Towns in South Glamorgan
Pick your town for local details, or see every service in South Glamorgan.