Ducted air conditioning across West Sussex
For a renovation in Crawley, the best time to plan ducted cooling is before the plasterers arrive. In an older house in Crawley, the loft and any existing bulkheads decide whether a ducted layout will work. The South East sees some of the UK's warmest summer days, and south-facing rooms and conservatories feel it first.
Prices in West Sussex
For West Sussex, expect roughly £6,645 to £18,245 per system, VAT included, adjusted for typical South East England rates. Prices here sit above the national middle, reflecting South East England labour rates and parking and access costs. What moves a quote in West Sussex up or down is mostly pipe length, how high the outdoor unit goes, and whether a new electrical circuit is needed. Typical Zoned work (motorised dampers or two units for separate floors or room groups) lands around £9,095–£13,345 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
For most houses in West Sussex, 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
Surveys in West Sussex cover heat gain, pipe routes, electrics, access and noise to the nearest neighbour, so surprises on the day are rare. 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
Included with ducted air conditioning across West Sussex:
- Wall controller or app control
- Access hatch and condensate route planned in
- Concealed fan unit and outdoor unit sized to the zone
- Free survey with ceiling-void and loft inspection
- Commissioning with airflow balancing per grille
- Insulated ductwork, plenums and grilles
Towns in West Sussex
Pick your town for local details, or see every service in West Sussex.