Air conditioning for extensions and kitchen-diners in Slough
Hot spells reach the South East early, which makes spring the easiest time to arrange an installation. An extension in Slough with a roof lantern or large glazed doors can overheat quickly on a sunny afternoon.
In Slough, a side wall of a single-storey extension is usually the neatest place for the indoor unit. We cover Slough as part of Berkshire, roughly 17 miles from Reading. We cover SL1 and the streets around them.
Prices in Slough
Budget around £1,745–£5,445 per space including VAT for air conditioning for extensions and kitchen-diners in and around Slough. That is above the UK middle, mainly because labour and access cost more in South East England. What moves a quote in Slough up or down is mostly pipe length, how high the outdoor unit goes, and whether a new electrical circuit is needed. Typical Large single work (one 5–7 kW unit for a large glazed space) lands around £2,495–£3,495 in this area.
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
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
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. A survey in Slough 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 air conditioning for extensions and kitchen-diners in Slough:
- Handover of the remote or app
- Placement clear of the hob and oven
- Hidden routes during the build, or neat surface routes after
- One or two units sized for the whole space
- Free survey with glazing and roof heat-gain check
Nearby
If you are just outside Slough, we also work in Windsor (2 miles), Maidenhead (5 miles) and Uxbridge (6 miles). See all services in Slough or air conditioning for extensions and kitchen-diners across Berkshire.