Wall-mounted air conditioning in Grays
A single wall-mounted unit is often all a bedroom or sunny living room in Grays needs. Long sunny spells in the East of England put conservatories and top-floor rooms under real pressure.
In a semi or terrace in Grays, the indoor unit often goes on a back bedroom wall with the outdoor unit on a bracket below. Our Essex coverage takes in Grays, about 17 miles from Southend-on-Sea. Coverage includes RM17.
Prices in Grays
Guide prices around Grays run from £1,295 to £3,295 per room including VAT. The East of England 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. 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 £1,745–£2,395 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
The free survey is where the real price is set: room measurements, pipe and drain routes, electrical checks and the outdoor unit position, all written into your quote. Surveys in Grays cover heat gain, pipe routes, electrics, access and noise to the nearest neighbour, so surprises on the day are rare.
What is included
Included with wall-mounted air conditioning in Grays:
- Nitrogen pressure test and deep vacuum before commissioning
- Core-drilled wall penetration and sealed sleeve
- Insulated copper pipework, drain and interconnecting cable
- Supply of an R32 inverter unit sized to the room
- Free site survey and room heat-gain check
Nearby
If you are just outside Grays, we also work in South Ockendon (3 miles), Gravesend (3 miles) and Dartford (5 miles). See all services in Grays or wall-mounted air conditioning across Essex.

