Air conditioning for extensions and kitchen-diners in Wimbledon
In Wimbledon, a side wall of a single-storey extension is usually the neatest place for the indoor unit. In London, heat soaks into brick and concrete during the day and comes back out at night, which is when it is hardest to sleep.
For a kitchen-diner in Wimbledon, we place the indoor unit clear of the hob and plan the outdoor unit at the rear. Wimbledon sits around 6 miles from central London, inside our London area. Coverage includes SW19.
Prices in Wimbledon
For Wimbledon, expect roughly £1,895 to £5,845 per space, VAT included, adjusted for typical London rates. That is above the UK middle, mainly because labour and access cost more in London. 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 London figures, the Large single option (one 5–7 kW unit for a large glazed space) is about £2,695–£3,745.
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
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. 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 air conditioning for extensions and kitchen-diners in Wimbledon:
- Pressure test, vacuum and commissioning
- Free survey with glazing and roof heat-gain check
- Hidden routes during the build, or neat surface routes after
- Placement clear of the hob and oven
- Handover of the remote or app
Nearby
Neighbouring places we cover include Morden (2 miles), Mitcham (2 miles) and Putney (3 miles). See all services in Wimbledon or air conditioning for extensions and kitchen-diners across London.