Ducted air conditioning in Sunbury-on-Thames
Ducted systems suit Sunbury-on-Thames loft conversions and new extensions where ceilings are being boarded anyway. Hot spells reach the South East early, which makes spring the easiest time to arrange an installation.
For a renovation in Sunbury-on-Thames, the best time to plan ducted cooling is before the plasterers arrive. Our Surrey coverage takes in Sunbury-on-Thames, about 8 miles from Woking. That includes the TW16 and TW17 postcode districts.
Prices in Sunbury-on-Thames
Our South East England guide price for ducted air conditioning is £6,645–£18,245 per system, VAT included. South East England is one of the dearer parts of the UK for trades, which shows in the range. The biggest variables are the pipe route, access for the outdoor unit and the state of the consumer unit, all of which the survey settles. For reference, the Zoned option in Sunbury-on-Thames (motorised dampers or two units for separate floors or room groups) usually comes to about £9,095–£13,345.
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
For most houses in Sunbury-on-Thames, the outdoor unit is permitted development if it passes the MCS 020(a) noise check (37 dB(A) or less at the nearest neighbouring window) and stays within the size and number limits. We run that check on survey.
The survey
We book surveys in Sunbury-on-Thames at a time that suits you, including early evenings by arrangement, and send the written quote afterwards. A survey in Sunbury-on-Thames 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 with ducted air conditioning in Sunbury-on-Thames:
- Commissioning with airflow balancing per grille
- Free survey with ceiling-void and loft inspection
- Insulated ductwork, plenums and grilles
- Concealed fan unit and outdoor unit sized to the zone
- Wall controller or app control
Nearby
Neighbouring places we cover include Walton-on-Thames (1 mile), Hanworth (2 miles) and Ashford, Surrey (3 miles). See all services in Sunbury-on-Thames or ducted air conditioning across Surrey.

