Air conditioning for extensions and kitchen-diners in Barnes
Many London homes are flats or tall terraces, where heat rises to the top floor and the bedrooms bear the brunt of a hot spell. An extension in Barnes with a roof lantern or large glazed doors can overheat quickly on a sunny afternoon.
For a kitchen-diner in Barnes, we place the indoor unit clear of the hob and plan the outdoor unit at the rear. Barnes is about 6 miles from central London and falls within our London coverage. Homes in SW13 are all within our coverage.
Prices in Barnes
Guide prices around Barnes run from £1,895 to £5,845 per space including VAT. That is above the UK middle, mainly because labour and access cost more in London. Longer or hidden pipe runs, high-level brackets and electrical upgrades are the usual reasons a quote lands at the top of the range. For reference, the Large single option in Barnes (one 5–7 kW unit for a large glazed space) usually comes to 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
For most houses in Barnes, the outdoor unit is permitted development if it passes the MCS 020(a) noise check (37 dB(A) or less at the nearest neighbouring window) and stays within the size and number limits. We run that check on survey.
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. Surveys in Barnes cover heat gain, pipe routes, electrics, access and noise to the nearest neighbour, so surprises on the day are rare.
What is included
Every job in Barnes includes:
- Placement clear of the hob and oven
- One or two units sized for the whole space
- 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
Nearby, we also cover Chiswick (1 mile), Putney (2 miles) and Fulham (2 miles). See all services in Barnes or air conditioning for extensions and kitchen-diners across London.