Multi-split air conditioning across County Antrim
Multi-split is a good fit for Belfast flats and maisonettes where only a balcony or one rear wall is available. Twin and triple systems suit Belfast homes where bedrooms sit above the kitchen and one rear wall can take the outdoor unit. Northern Ireland's mild, damp climate makes efficient heating and dehumidifying the main benefits for most homes.
Prices in County Antrim
Guide prices around County Antrim run from £2,245 to £7,145 for 2–4 rooms including VAT. That sits a little below the UK middle, reflecting typical Northern Ireland labour rates. Longer or hidden pipe runs, high-level brackets and electrical upgrades are the usual reasons a quote lands at the top of the range. Typical Triple work (three rooms with mixed indoor styles and Wi-Fi control throughout) lands around £3,095–£4,995 in this area.
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
In Northern Ireland we confirm planning requirements for the outdoor unit on survey, especially for listed buildings and conservation areas.
The survey
A survey in County Antrim 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. On a survey in County Antrim the engineer looks at room size, glazing, the route for pipes and drains, the electrics and where the outdoor unit can sit quietly, then the written quote follows.
What is included
Included with multi-split air conditioning across County Antrim:
- Planned pipe routes through lofts, floors or trunking
- Commissioning and a walk-round of every room's controls
- One outdoor unit sized to the combined load
- Free survey with a room-by-room heat-gain check
- Pressure test, vacuum and refrigerant charge calculated for the pipe lengths
- An indoor unit and controls for every room
Towns in County Antrim
Pick your town for local details, or see every service in County Antrim.