Multi-split air conditioning in New Malden
Twin and triple systems suit New Malden homes where bedrooms sit above the kitchen and one rear wall can take the outdoor unit. London's dense streets hold heat overnight, so top-floor flats and loft rooms often stay warm long after sunset.
In a house in New Malden with a usable loft, multi-split pipes can often run through it so the front stays clear. New Malden is about 9 miles from central London and falls within our London coverage. Postcode districts we cover here include KT3.
Prices in New Malden
For New Malden, expect roughly £3,245 to £10,245 for 2–4 rooms, VAT included, adjusted for typical London rates. Prices here sit above the national middle, reflecting London labour rates and parking and access costs. Concealed pipework, access equipment for high walls and any electrical work are what push prices towards the upper figure. For reference, the Triple option in New Malden (three rooms with mixed indoor styles and Wi-Fi control throughout) usually comes to 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
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
A survey in New Malden usually takes one to two hours. We measure the rooms, check the walls and the consumer unit, agree the outdoor unit position with you and photograph the pipe routes. Surveys in New Malden 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 New Malden includes:
- One outdoor unit sized to the combined load
- An indoor unit and controls for every room
- Pressure test, vacuum and refrigerant charge calculated for the pipe lengths
- Planned pipe routes through lofts, floors or trunking
- Free survey with a room-by-room heat-gain check
Nearby
Neighbouring places we cover include Surbiton (2 miles), Morden (3 miles) and Wimbledon (3 miles). See all services in New Malden or multi-split air conditioning across London.