Air conditioning for extensions and kitchen-diners in Eltham
For a kitchen-diner in Eltham, we place the indoor unit clear of the hob and plan the outdoor unit at the rear. The urban heat island effect means London bedrooms can stay uncomfortably warm on summer nights.
In Eltham, a side wall of a single-storey extension is usually the neatest place for the indoor unit. Eltham sits around 8 miles from central London, inside our London area. We cover SE9 and the streets around them.
Prices in Eltham
Guide prices around Eltham run from £1,895 to £5,845 per space including VAT. Prices here sit above the national middle, reflecting London labour rates and parking and access costs. What moves a quote in Eltham 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 £2,695–£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
England's rules let most houses fit an outdoor unit without a planning application, as long as the size, number and MCS 020(a) noise conditions are met. Flats, listed buildings and roof-mounted units are treated differently.
The survey
We book surveys in Eltham at a time that suits you, including early evenings by arrangement, and send the written quote afterwards. 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.
What is included
Included as standard in Eltham:
- Placement clear of the hob and oven
- Handover of the remote or app
- One or two units sized for the whole space
- Hidden routes during the build, or neat surface routes after
- Pressure test, vacuum and commissioning
Nearby
Neighbouring places we cover include Blackheath (2 miles), Welling (3 miles) and Catford (3 miles). See all services in Eltham or air conditioning for extensions and kitchen-diners across London.