Wall-mounted air conditioning in Hounslow
Where a home in Hounslow faces the street, the outdoor unit usually goes at the rear, out of sight. The urban heat island effect means London bedrooms can stay uncomfortably warm on summer nights.
In a semi or terrace in Hounslow, the indoor unit often goes on a back bedroom wall with the outdoor unit on a bracket below. Hounslow is about 10 miles from central London and falls within our London coverage. Homes in TW3, TW4 and TW6 are all within our coverage.
Prices in Hounslow
Our London guide price for wall-mounted air conditioning is £1,495–£3,895 per room, VAT included. 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. 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
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
We book surveys in Hounslow at a time that suits you, including early evenings by arrangement, and send the written quote afterwards. Surveys in Hounslow cover heat gain, pipe routes, electrics, access and noise to the nearest neighbour, so surprises on the day are rare.
What is included
Here is what is included on every job in Hounslow:
- Core-drilled wall penetration and sealed sleeve
- Nitrogen pressure test and deep vacuum before commissioning
- Free site survey and room heat-gain check
- Insulated copper pipework, drain and interconnecting cable
- Supply of an R32 inverter unit sized to the room
Nearby
We also cover Isleworth (under a mile), Heston (1 mile) and Richmond (2 miles). See all services in Hounslow or wall-mounted air conditioning across London.