Multi-split air conditioning in Eltham
Multi-split is a good fit for Eltham flats and maisonettes where only a balcony or one rear wall is available. The urban heat island effect means London bedrooms can stay uncomfortably warm on summer nights.
Twin and triple systems suit Eltham homes where bedrooms sit above the kitchen and one rear wall can take the outdoor unit. Our London coverage takes in Eltham, about 8 miles from central London. Coverage includes SE9.
Prices in Eltham
In London, our guide range for multi-split air conditioning is £3,245–£10,245 for 2–4 rooms, including VAT. That is above the UK middle, mainly because labour and access cost more in London. Quotes move with the length of the pipe run, where the outdoor unit can sit and how much electrical work the job needs. On our London figures, the Triple option (three rooms with mixed indoor styles and Wi-Fi control throughout) is about £4,395–£7,195.
Twin
Two rooms on one outdoor unit, wall-mounted indoor units, standard routes.
Triple
Three rooms with mixed indoor styles and Wi-Fi control throughout.
Quad
Four or five rooms, longer concealed runs or a ducted unit in a loft void.
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
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. On a survey in Eltham 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.
What is included
Every job in Eltham includes:
- One outdoor unit sized to the combined load
- Planned pipe routes through lofts, floors or trunking
- Pressure test, vacuum and refrigerant charge calculated for the pipe lengths
- Commissioning and a walk-round of every room's controls
- Free survey with a room-by-room heat-gain check
Nearby
Close to Eltham, our coverage also includes Blackheath (2 miles), Welling (3 miles) and Catford (3 miles). See all services in Eltham or multi-split air conditioning across London.