Air conditioning for extensions and kitchen-diners in Redhill
In Redhill, a side wall of a single-storey extension is usually the neatest place for the indoor unit. In the South East, loft rooms and glazed extensions can climb well above the outside temperature on a sunny afternoon.
For a kitchen-diner in Redhill, we place the indoor unit clear of the hob and plan the outdoor unit at the rear. We cover Redhill as part of Surrey, roughly 18 miles from Woking. Coverage includes RH1.
Prices in Redhill
For Redhill, expect roughly £1,745 to £5,445 per space, VAT included, adjusted for typical South East England rates. That is above the UK middle, mainly because labour and access cost more in South East England. 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. On our South East England figures, the Large single option (one 5–7 kW unit for a large glazed space) is about £2,495–£3,495.
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
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. Surveys in Redhill cover heat gain, pipe routes, electrics, access and noise to the nearest neighbour, so surprises on the day are rare.
What is included
What a job in Redhill covers:
- One or two units sized for the whole space
- Pressure test, vacuum and commissioning
- Handover of the remote or app
- Free survey with glazing and roof heat-gain check
- Hidden routes during the build, or neat surface routes after
Nearby
We also cover Reigate (2 miles), Horley (5 miles) and Coulsdon (6 miles). See all services in Redhill or air conditioning for extensions and kitchen-diners across Surrey.