Ducted air conditioning in Trowbridge
For a renovation in Trowbridge, the best time to plan ducted cooling is before the plasterers arrive. Coastal breezes help, but inland South West towns and glazed rooms still see uncomfortable peaks.
In an older house in Trowbridge, the loft and any existing bulkheads decide whether a ducted layout will work. We cover Trowbridge as part of Wiltshire, roughly 25 miles from Swindon. Coverage includes BA14.
Prices in Trowbridge
Budget around £5,450–£14,950 per system including VAT for ducted air conditioning in and around Trowbridge. It sits near the middle of UK prices. 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. Typical Zoned work (motorised dampers or two units for separate floors or room groups) lands around £7,450–£10,950 in this area.
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
Since 29 May 2025, England's permitted development rules allow larger outdoor units (up to 1.5 m³) and no longer require a 1 m gap to the boundary, provided the MCS 020(a) noise check is met. Listed buildings and pitched-roof installs still need permission.
The survey
We book surveys in Trowbridge at a time that suits you, including early evenings by arrangement, and send the written quote afterwards. 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.
What is included
What a job in Trowbridge covers:
- Free survey with ceiling-void and loft inspection
- Insulated ductwork, plenums and grilles
- Wall controller or app control
- Concealed fan unit and outdoor unit sized to the zone
- Commissioning with airflow balancing per grille
Nearby
We also cover Bath (8 miles), Frome (8 miles) and Warminster (8 miles). See all services in Trowbridge or ducted air conditioning across Wiltshire.