Ducted air conditioning across County Londonderry
Ducted systems suit Derry/Londonderry loft conversions and new extensions where ceilings are being boarded anyway. For a renovation in Derry/Londonderry, the best time to plan ducted cooling is before the plasterers arrive. Damp Northern Ireland winters make a heat pump's dehumidifying mode useful well beyond the summer.
Prices in County Londonderry
In Northern Ireland, our guide range for ducted air conditioning is £4,995–£13,745 per system, 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. As an example, the Zoned option (motorised dampers or two units for separate floors or room groups) would typically be £6,845–£10,045 here.
Single zone
One ducted unit serving two or three rooms from a loft or void.
Zoned
Motorised dampers or two units for separate floors or room groups.
Whole home
Multiple ducted units with linear slot diffusers and smart control.
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
Planning rules for outdoor units in Northern Ireland differ from Great Britain's, so we check your property with you and the council where needed.
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. Surveys in County Londonderry cover heat gain, pipe routes, electrics, access and noise to the nearest neighbour, so surprises on the day are rare.
What is included
Included with ducted air conditioning across County Londonderry:
- Free survey with ceiling-void and loft inspection
- Insulated ductwork, plenums and grilles
- Commissioning with airflow balancing per grille
- Wall controller or app control
- Access hatch and condensate route planned in
- Concealed fan unit and outdoor unit sized to the zone
Towns in County Londonderry
Pick your town for local details, or see every service in County Londonderry.