Air conditioning for extensions and kitchen-diners in Staines
The South East sees some of the UK's warmest summer days, and south-facing rooms and conservatories feel it first. An extension in Staines with a roof lantern or large glazed doors can overheat quickly on a sunny afternoon.
For a kitchen-diner in Staines, we place the indoor unit clear of the hob and plan the outdoor unit at the rear. Staines sits around 8 miles from Woking, inside our Surrey area. Postcode districts we cover here include TW18.
Prices in Staines
Air conditioning for extensions and kitchen-diners in Staines 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. Longer or hidden pipe runs, high-level brackets and electrical upgrades are the usual reasons a quote lands at the top of the range. 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
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 Staines 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. 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 Staines covers:
- Pressure test, vacuum and commissioning
- Handover of the remote or app
- Placement clear of the hob and oven
- Hidden routes during the build, or neat surface routes after
- Free survey with glazing and roof heat-gain check
Nearby
Neighbouring places we cover include Egham (2 miles), Ashford, Surrey (2 miles) and Feltham (4 miles). See all services in Staines or air conditioning for extensions and kitchen-diners across Surrey.