Bedroom and loft air conditioning across West Sussex
Loft conversions and top-floor bedrooms in Crawley gain heat through the roof all day and give it back at night. For bedrooms in Crawley, we place the outdoor unit at the back of the house, away from neighbours' windows. The South East sees some of the UK's warmest summer days, and south-facing rooms and conservatories feel it first.
Prices in West Sussex
Guide prices around West Sussex run from £1,445 to £3,595 per room including VAT. South East England is one of the dearer parts of the UK for trades, which shows in the range. Concealed pipework, access equipment for high walls and any electrical work are what push prices towards the upper figure. On our South East England figures, the Popular option (low-noise unit with Wi-Fi for a loft room or main bedroom) is about £1,895–£2,695.
Essential
2–2.5 kW unit for a small bedroom with a short pipe run.
Popular
Low-noise unit with Wi-Fi for a loft room or main bedroom.
Premium
Very quiet model, concealed pipework or a flat-roof stand.
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
At the survey we look at how each room is used, where the sun hits it and how the pipes can reach the outside wall, then put it all in a written quote. On a survey in West Sussex 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.
What is included
Included with bedroom and loft air conditioning across West Sussex:
- Handover of night-time and timer settings
- Quiet inverter unit with night mode
- Access equipment where needed for high-level work
- Free survey with roof and glazing heat-gain check
- Neat pipe route from loft to outdoor unit
- Pressure test, vacuum and commissioning
Towns in West Sussex
Pick your town for local details, or see every service in West Sussex.