Air conditioning for extensions and kitchen-diners in Derry/Londonderry
An extension in Derry/Londonderry 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 Derry/Londonderry, we place the indoor unit clear of the hob and plan the outdoor unit at the rear. We cover Derry/Londonderry and the rest of County Londonderry, including Coleraine and Limavady. We cover BT48 and BT47 and the streets around them.
Prices in Derry/Londonderry
Guide prices around Derry/Londonderry 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. What moves a quote in Derry/Londonderry up or down is mostly pipe length, how high the outdoor unit goes, and whether a new electrical circuit is needed. 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
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
At the survey we look at how each room is used, where the sun hits it and how the pipes can reach the outside wall, then put it all in a written quote. We book surveys in Derry/Londonderry at a time that suits you, including early evenings by arrangement, and send the written quote afterwards.
What is included
Included with air conditioning for extensions and kitchen-diners in Derry/Londonderry:
- Free survey with glazing and roof heat-gain check
- Hidden routes during the build, or neat surface routes after
- One or two units sized for the whole space
- Handover of the remote or app
- Placement clear of the hob and oven
Nearby
Nearby, we also cover Strabane (14 miles), Limavady (15 miles) and Coleraine (27 miles). See all services in Derry/Londonderry or air conditioning for extensions and kitchen-diners across County Londonderry.