Wall-mounted air conditioning in Carshalton
The urban heat island effect means London bedrooms can stay uncomfortably warm on summer nights. In a semi or terrace in Carshalton, the indoor unit often goes on a back bedroom wall with the outdoor unit on a bracket below.
A single wall-mounted unit is often all a bedroom or sunny living room in Carshalton needs. We cover Carshalton as part of London, roughly 9 miles from central London. Coverage includes SM5.
Prices in Carshalton
For Carshalton, expect roughly £1,495 to £3,895 per room, VAT included, adjusted for typical London rates. London is one of the dearer parts of the UK for trades, which shows in the range. What moves a quote in Carshalton up or down is mostly pipe length, how high the outdoor unit goes, and whether a new electrical circuit is needed. For reference, the Popular option in Carshalton (quieter mid-range unit with Wi-Fi control and better seasonal efficiency for a living room) usually comes to about £2,045–£2,845.
Essential
Reliable 2.5–3.5 kW unit for a bedroom or study, standard pipe run, basic remote.
Popular
Quieter mid-range unit with Wi-Fi control and better seasonal efficiency for a living room.
Premium
Design-led or very quiet model, larger capacity or concealed pipework through a 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
For most houses in Carshalton, the outdoor unit is permitted development if it passes the MCS 020(a) noise check (37 dB(A) or less at the nearest neighbouring window) and stays within the size and number limits. We run that check on survey.
The survey
A survey in Carshalton 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. On a survey in Carshalton 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
Here is what is included on every job in Carshalton:
- Core-drilled wall penetration and sealed sleeve
- Free site survey and room heat-gain check
- Supply of an R32 inverter unit sized to the room
- Insulated copper pipework, drain and interconnecting cable
- Nitrogen pressure test and deep vacuum before commissioning
Nearby
Neighbouring places we cover include Sutton (2 miles), Mitcham (2 miles) and Morden (2 miles). See all services in Carshalton or wall-mounted air conditioning across London.