Wall-mounted air conditioning in Harrow
London's dense streets hold heat overnight, so top-floor flats and loft rooms often stay warm long after sunset. A single wall-mounted unit is often all a bedroom or sunny living room in Harrow needs.
Where a home in Harrow faces the street, the outdoor unit usually goes at the rear, out of sight. Harrow sits around 10 miles from central London, inside our London area. Homes in HA2 are all within our coverage.
Prices in Harrow
Wall-mounted air conditioning in Harrow typically comes in at £1,495–£3,895 per room including VAT, based on London rates. London is one of the dearer parts of the UK for trades, which shows in the range. The biggest variables are the pipe route, access for the outdoor unit and the state of the consumer unit, all of which the survey settles. As an example, the Popular option (quieter mid-range unit with Wi-Fi control and better seasonal efficiency for a living room) would typically be £2,045–£2,845 here.
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
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
A survey in Harrow 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. We book surveys in Harrow at a time that suits you, including early evenings by arrangement, and send the written quote afterwards.
What is included
Included as standard in Harrow:
- Handover of the remote, Wi-Fi app (where fitted) and filter cleaning
- Free site survey and room heat-gain check
- Insulated copper pipework, drain and interconnecting cable
- Core-drilled wall penetration and sealed sleeve
- Supply of an R32 inverter unit sized to the room
Nearby
If you are just outside Harrow, we also work in Wembley (2 miles), Northolt (3 miles) and Greenford (4 miles). See all services in Harrow or wall-mounted air conditioning across London.

