Wall-mounted air conditioning in Hayes
Where a home in Hayes faces the street, the outdoor unit usually goes at the rear, out of sight. In London, heat soaks into brick and concrete during the day and comes back out at night, which is when it is hardest to sleep.
A single wall-mounted unit is often all a bedroom or sunny living room in Hayes needs. Hayes is about 13 miles from central London and falls within our London coverage. Coverage includes UB3 and UB8.
Prices in Hayes
For Hayes, expect roughly £1,495 to £3,895 per room, VAT included, adjusted for typical 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. For reference, the Popular option in Hayes (quieter mid-range unit with Wi-Fi control and better seasonal efficiency for a living room) usually comes to 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 Hayes, 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 Hayes 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. Surveys in Hayes cover heat gain, pipe routes, electrics, access and noise to the nearest neighbour, so surprises on the day are rare.
What is included
Included as standard in Hayes:
- Supply of an R32 inverter unit sized to the room
- Nitrogen pressure test and deep vacuum before commissioning
- Free site survey and room heat-gain check
- Core-drilled wall penetration and sealed sleeve
- Handover of the remote, Wi-Fi app (where fitted) and filter cleaning
Nearby
Nearby, we also cover Southall (2 miles), Heston (3 miles) and Greenford (3 miles). See all services in Hayes or wall-mounted air conditioning across London.

