Air conditioning for extensions and kitchen-diners in Castlereagh
An extension in Castlereagh with a roof lantern or large glazed doors can overheat quickly on a sunny afternoon. In Northern Ireland, homes on oil or electric heating can look at air-to-air systems for efficient warmth.
For a kitchen-diner in Castlereagh, we place the indoor unit clear of the hob and plan the outdoor unit at the rear. Castlereagh is about 2 miles from Belfast and falls within our County Antrim coverage. Homes in BT5 and BT6 are all within our coverage.
Prices in Castlereagh
Guide prices around Castlereagh run from £1,345 to £4,095 per space including VAT. It is a touch below the UK middle, as trade rates in Northern Ireland tend to be. Quotes move with the length of the pipe run, where the outdoor unit can sit and how much electrical work the job needs. On our Northern Ireland figures, the Large single option (one 5–7 kW unit for a large glazed space) is about £1,895–£2,595.
Single unit
One 3.5–5 kW unit for a medium extension.
Large single
One 5–7 kW unit for a large glazed space.
Twin units
Two indoor units on a multi-split for long or L-shaped spaces.
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
We book surveys in Castlereagh at a time that suits you, including early evenings by arrangement, and send the written quote afterwards. A survey in Castlereagh 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.
What is included
Included as standard in Castlereagh:
- Placement clear of the hob and oven
- Handover of the remote or app
- Free survey with glazing and roof heat-gain check
- One or two units sized for the whole space
- Hidden routes during the build, or neat surface routes after
Nearby
If you are just outside Castlereagh, we also work in Belfast (2 miles), Holywood (5 miles) and Newtownabbey (6 miles). See all services in Castlereagh or air conditioning for extensions and kitchen-diners across County Antrim.