Wall-mounted air conditioning in Greenwich
London's dense streets hold heat overnight, so top-floor flats and loft rooms often stay warm long after sunset. Where a home in Greenwich faces the street, the outdoor unit usually goes at the rear, out of sight.
A single wall-mounted unit is often all a bedroom or sunny living room in Greenwich needs. We cover Greenwich as part of London, roughly 5 miles from central London. Coverage includes SE10.
Prices in Greenwich
Budget around £1,495–£3,895 per room including VAT for wall-mounted air conditioning in and around Greenwich. London is one of the dearer parts of the UK for trades, which shows in the range. What moves a quote in Greenwich up or down is mostly pipe length, how high the outdoor unit goes, and whether a new electrical circuit is needed. On our London figures, the Popular option (quieter mid-range unit with Wi-Fi control and better seasonal efficiency for a living room) is 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 Greenwich, 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
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 Greenwich 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
Included as standard in Greenwich:
- Free site survey and room heat-gain check
- Handover of the remote, Wi-Fi app (where fitted) and filter cleaning
- Supply of an R32 inverter unit sized to the room
- Nitrogen pressure test and deep vacuum before commissioning
- Insulated copper pipework, drain and interconnecting cable
Nearby
We also cover Blackheath (1 mile), Canary Wharf (2 miles) and Catford (2 miles). See all services in Greenwich or wall-mounted air conditioning across London.

