Air conditioning for extensions and kitchen-diners in Beckenham
For a kitchen-diner in Beckenham, we place the indoor unit clear of the hob and plan the outdoor unit at the rear. 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.
An extension in Beckenham with a roof lantern or large glazed doors can overheat quickly on a sunny afternoon. We cover Beckenham as part of London, roughly 8 miles from central London. That includes the BR3 postcode district.
Prices in Beckenham
Guide prices around Beckenham 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. Concealed pipework, access equipment for high walls and any electrical work are what push prices towards the upper figure. Typical Large single work (one 5–7 kW unit for a large glazed space) lands around £2,695–£3,745 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
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. We book surveys in Beckenham at a time that suits you, including early evenings by arrangement, and send the written quote afterwards.
What is included
Included with air conditioning for extensions and kitchen-diners in Beckenham:
- Free survey with glazing and roof heat-gain check
- 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
Nearby
We also cover Catford (2 miles), Croydon (4 miles) and Blackheath (4 miles). See all services in Beckenham or air conditioning for extensions and kitchen-diners across London.