Wall-mounted air conditioning in Thamesmead
Many London homes are flats or tall terraces, where heat rises to the top floor and the bedrooms bear the brunt of a hot spell. Where a home in Thamesmead faces the street, the outdoor unit usually goes at the rear, out of sight.
In a semi or terrace in Thamesmead, the indoor unit often goes on a back bedroom wall with the outdoor unit on a bracket below. Thamesmead lies roughly 11 miles from central London, and we cover it as part of London. That includes the SE2 and SE28 postcode districts.
Prices in Thamesmead
For Thamesmead, expect roughly £1,495 to £3,895 per room, VAT included, adjusted for typical London rates. That is above the UK middle, mainly because labour and access cost more in London. Longer or hidden pipe runs, high-level brackets and electrical upgrades are the usual reasons a quote lands at the top of the range. 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 Thamesmead, 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
On a survey in Thamesmead 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. We book surveys in Thamesmead at a time that suits you, including early evenings by arrangement, and send the written quote afterwards.
What is included
Included as standard in Thamesmead:
- Insulated copper pipework, drain and interconnecting cable
- Core-drilled wall penetration and sealed sleeve
- Supply of an R32 inverter unit sized to the room
- Handover of the remote, Wi-Fi app (where fitted) and filter cleaning
- Nitrogen pressure test and deep vacuum before commissioning
Nearby
We also cover Barking (3 miles), Welling (3 miles) and Becontree (3 miles). See all services in Thamesmead or wall-mounted air conditioning across London.

