Garden room and home office air conditioning in West Sussex

Garden room and home office air conditioning across West Sussex

We check the armoured supply cable on every Crawley garden room before quoting. For a garden room in Crawley, the outdoor unit usually sits on a small stand behind the building. In the South East, loft rooms and glazed extensions can climb well above the outside temperature on a sunny afternoon.

Prices in West Sussex

Our South East England guide price for garden room and home office air conditioning is £1,745–£3,845 per system, VAT included. That is above the UK middle, mainly because labour and access cost more in South East England. 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 West Sussex (3.5 kW unit with Wi-Fi to warm up before you walk down the garden) usually comes to about £2,195–£2,995.

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

A survey in West Sussex usually takes one to two hours. We measure the rooms, check the walls and the consumer unit, agree the outdoor unit position with you and photograph the pipe routes. Surveys in West Sussex 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 garden room and home office air conditioning across West Sussex:

• Short pipe run to a ground-mounted outdoor unit
• Handover and timer set-up for working hours
• Pressure test, vacuum and commissioning
• Compact inverter unit sized to the space
• Fixings into frame or solid sections
• Free survey including the garden room's electrics

Towns in West Sussex

Pick your town for local details, or see every service in West Sussex.

• Crawley
• Worthing
• Bognor Regis
• Littlehampton
• Horsham
• Haywards Heath
• Chichester
• Burgess Hill
• East Grinstead