Multi-split air conditioning in Coulsdon
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. In a house in Coulsdon with a usable loft, multi-split pipes can often run through it so the front stays clear.
Multi-split is a good fit for Coulsdon flats and maisonettes where only a balcony or one rear wall is available. Our London coverage takes in Coulsdon, about 12 miles from central London. That includes the CR5 postcode district.
Prices in Coulsdon
Guide prices around Coulsdon run from £3,245 to £10,245 for 2–4 rooms including VAT. Prices here sit above the national middle, reflecting London labour rates and parking and access costs. What moves a quote in Coulsdon up or down is mostly pipe length, how high the outdoor unit goes, and whether a new electrical circuit is needed. Typical Triple work (three rooms with mixed indoor styles and Wi-Fi control throughout) lands around £4,395–£7,195 in this area.
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 Coulsdon 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 Coulsdon cover heat gain, pipe routes, electrics, access and noise to the nearest neighbour, so surprises on the day are rare.
What is included
Included with multi-split air conditioning in Coulsdon:
- Pressure test, vacuum and refrigerant charge calculated for the pipe lengths
- One outdoor unit sized to the combined load
- Commissioning and a walk-round of every room's controls
- Planned pipe routes through lofts, floors or trunking
- Free survey with a room-by-room heat-gain check
Nearby
If you are just outside Coulsdon, we also work in Purley (2 miles), Banstead (3 miles) and Sutton (3 miles). See all services in Coulsdon or multi-split air conditioning across London.