Home air conditioning in South Glamorgan
South Wales summers can be warm and humid, and winters damp, so a reversible system earns its keep all year. Wet South Wales winters make a heat pump's quiet, even heating and dehumidifying mode useful well beyond summer.
For period homes in Cardiff, we look at consoles in place of radiators and ducted units from the loft before anything else. Ask at your Cardiff survey whether the Boiler Upgrade Scheme grant could apply to your home. For landlords with several properties around Cardiff, one plan keeps every system's records together. Many homes start with one or two rooms. A system can be designed so that more rooms are added later without replacing the outdoor unit. For a single hot bedroom or living room, a wall-mounted split is usually the simplest answer. Two to four rooms often suit a multi-split on one outdoor unit, while a ducted system hides everything except the grilles.
Towns we cover in South Glamorgan
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.
South Glamorgan is in the Boiler Upgrade Scheme area, so eligible homes replacing oil, gas, LPG or electric heating may be able to get £2,500 off an air-to-air heat pump, as long as no fossil-fuel boiler stays in use. An MCS-certified installer must claim it; we confirm eligibility, and which installer applies, before you commit.
Guide prices in South Glamorgan
A selection of services on our South and Mid Wales figures, including VAT. Every service, with its local price, is listed below.
| Service | Guide price | Basis |
|---|---|---|
| Ducted air conditioning | £4,995–£13,745 | per system |
| Bedroom and loft air conditioning | £1,095–£2,695 | per room |
| Garden room and home office air conditioning | £1,345–£2,895 | per system |
| Air conditioning for period and listed homes | £1,495–£7,295 | per home, one room upwards |
| New build and renovation air conditioning | £365–£795 | per indoor position (first fix) |
| Air-to-air heat pumps | £2,695–£10,545 | for 2–5 rooms, before any grant |
| Air conditioning servicing | £85–£170 | per system visit (first indoor unit) |
| Air conditioning replacement and removal | £180–£445 | to remove and recover one system |