Air conditioning for extensions and kitchen-diners in Crawley
The South East sees some of the UK's warmest summer days, and south-facing rooms and conservatories feel it first. In Crawley, a side wall of a single-storey extension is usually the neatest place for the indoor unit.
For a kitchen-diner in Crawley, we place the indoor unit clear of the hob and plan the outdoor unit at the rear. We cover Crawley and the rest of West Sussex, including Worthing and Bognor Regis. Coverage includes RH11 and RH77.
Prices in Crawley
Air conditioning for extensions and kitchen-diners in Crawley typically comes in at £1,745–£5,445 per space including VAT, based on South East England rates. That is above the UK middle, mainly because labour and access cost more in South East England. Quotes move with the length of the pipe run, where the outdoor unit can sit and how much electrical work the job needs. As an example, the Large single option (one 5–7 kW unit for a large glazed space) would typically be £2,495–£3,495 here.
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
In England, most houses can have an outdoor unit under permitted development if it is no larger than 1.5 m³, meets the MCS 020(a) noise limit of 37 dB(A) at the nearest neighbour's window, and there are no more than two on a detached house or one on other houses. Listed buildings need consent.
The survey
On a survey in Crawley the engineer looks at room size, glazing, the route for pipes and drains, the electrics and where the outdoor unit can sit quietly, then the written quote follows. 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.
What is included
What a job in Crawley covers:
- Handover of the remote or app
- One or two units sized for the whole space
- Pressure test, vacuum and commissioning
- Free survey with glazing and roof heat-gain check
- Hidden routes during the build, or neat surface routes after
Nearby
If you are just outside Crawley, we also work in Horley (4 miles), Horsham (7 miles) and East Grinstead (8 miles). See all services in Crawley or air conditioning for extensions and kitchen-diners across West Sussex.