Wall-mounted air conditioning in Horsham
In the South East, loft rooms and glazed extensions can climb well above the outside temperature on a sunny afternoon. In a semi or terrace in Horsham, the indoor unit often goes on a back bedroom wall with the outdoor unit on a bracket below.
A single wall-mounted unit is often all a bedroom or sunny living room in Horsham needs. Horsham is about 7 miles from Crawley and falls within our West Sussex coverage. Homes in RH12 are all within our coverage.
Prices in Horsham
For Horsham, expect roughly £1,395 to £3,595 per room, VAT included, adjusted for typical South East England rates. That is above the UK middle, mainly because labour and access cost more in South East England. 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 £1,895–£2,595 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
In England, most houses can have an outdoor unit under permitted development if it is no larger than 1.5 m³, meets the MCS 020(a) noise limit of 37 dB(A) at the nearest neighbour's window, and there are no more than two on a detached house or one on other houses. Listed buildings need consent.
The survey
Surveys in Horsham cover heat gain, pipe routes, electrics, access and noise to the nearest neighbour, so surprises on the day are rare. We book surveys in Horsham at a time that suits you, including early evenings by arrangement, and send the written quote afterwards.
What is included
Included as standard in Horsham:
- Handover of the remote, Wi-Fi app (where fitted) and filter cleaning
- Core-drilled wall penetration and sealed sleeve
- 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
If you are just outside Horsham, we also work in Crawley (7 miles), Horley (11 miles) and Haywards Heath (11 miles). See all services in Horsham or wall-mounted air conditioning across West Sussex.