Wall-mounted air conditioning in Blackheath
Where a home in Blackheath faces the street, the outdoor unit usually goes at the rear, out of sight. 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.
In a semi or terrace in Blackheath, the indoor unit often goes on a back bedroom wall with the outdoor unit on a bracket below. Our London coverage takes in Blackheath, about 6 miles from central London. Coverage includes SE3.
Prices in Blackheath
Wall-mounted air conditioning in Blackheath typically comes in at £1,495–£3,895 per room including VAT, based on London rates. That is above the UK middle, mainly because labour and access cost more in London. Quotes move with the length of the pipe run, where the outdoor unit can sit and how much electrical work the job needs. Typical Popular work (quieter mid-range unit with Wi-Fi control and better seasonal efficiency for a living room) lands around £2,045–£2,845 in this area.
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
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
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 Blackheath 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 with wall-mounted air conditioning in Blackheath:
- Insulated copper pipework, drain and interconnecting cable
- Handover of the remote, Wi-Fi app (where fitted) and filter cleaning
- Supply of an R32 inverter unit sized to the room
- Free site survey and room heat-gain check
- Nitrogen pressure test and deep vacuum before commissioning
Nearby
Nearby, we also cover Greenwich (1 mile), Catford (2 miles) and Eltham (2 miles). See all services in Blackheath or wall-mounted air conditioning across London.