Multi-split air conditioning in Belfast
In Northern Ireland, homes on oil or electric heating can look at air-to-air systems for efficient warmth. In a house in Belfast with a usable loft, multi-split pipes can often run through it so the front stays clear.
Twin and triple systems suit Belfast homes where bedrooms sit above the kitchen and one rear wall can take the outdoor unit. As well as Belfast itself, our County Antrim coverage takes in Lisburn, Newtownabbey and the towns around them. We cover BT1, BT2, BT3, BT7, BT9 and 3 more and the streets around them.
Prices in Belfast
In Northern Ireland, our guide range for multi-split air conditioning is £2,245–£7,145 for 2–4 rooms, including VAT. It is a touch below the UK middle, as trade rates in Northern Ireland tend to be. Concealed pipework, access equipment for high walls and any electrical work are what push prices towards the upper figure. For reference, the Triple option in Belfast (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
Northern Ireland has its own planning rules for outdoor units, and conservation areas and listed buildings need particular care. We confirm the position for your property before installation.
The survey
A survey in Belfast 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 Belfast 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 in Belfast:
- 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
- Planned pipe routes through lofts, floors or trunking
- An indoor unit and controls for every room
Nearby
Neighbouring places we cover include Castlereagh (2 miles), Newtownabbey (4 miles) and Holywood (5 miles). See all services in Belfast or multi-split air conditioning across County Antrim.

