Multi-split air conditioning across West Glamorgan
Multi-split is a good fit for Swansea flats and maisonettes where only a balcony or one rear wall is available. Twin and triple systems suit Swansea homes where bedrooms sit above the kitchen and one rear wall can take the outdoor unit. In South and Mid Wales, efficient heating is often as important as cooling.
Prices in West Glamorgan
Our South and Mid Wales guide price for multi-split air conditioning is £2,245–£7,145 for 2–4 rooms, VAT included. 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 Triple option in West Glamorgan (three rooms with mixed indoor styles and Wi-Fi control throughout) usually comes to about £3,095–£4,995.
Twin
Two rooms on one outdoor unit, wall-mounted indoor units, standard routes.
Triple
Three rooms with mixed indoor styles and Wi-Fi control throughout.
Quad
Four or five rooms, longer concealed runs or a ducted unit in a loft 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 West 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
The free survey is where the real price is set: room measurements, pipe and drain routes, electrical checks and the outdoor unit position, all written into your quote. We book surveys in West Glamorgan at a time that suits you, including early evenings by arrangement, and send the written quote afterwards.
What is included
Included with multi-split air conditioning across West Glamorgan:
- Pressure test, vacuum and refrigerant charge calculated for the pipe lengths
- An indoor unit and controls for every room
- Planned pipe routes through lofts, floors or trunking
- Commissioning and a walk-round of every room's controls
- Free survey with a room-by-room heat-gain check
- One outdoor unit sized to the combined load
Towns in West Glamorgan
Pick your town for local details, or see every service in West Glamorgan.