Air conditioning for extensions and kitchen-diners in Haywards Heath
An extension in Haywards Heath with a roof lantern or large glazed doors can overheat quickly on a sunny afternoon. In the South East, loft rooms and glazed extensions can climb well above the outside temperature on a sunny afternoon.
In Haywards Heath, a side wall of a single-storey extension is usually the neatest place for the indoor unit. Haywards Heath sits around 9 miles from Crawley, inside our West Sussex area. That includes the RH16 postcode district.
Prices in Haywards Heath
Guide prices around Haywards Heath run from £1,745 to £5,445 per space including VAT. That is above the UK middle, mainly because labour and access cost more in South East England. What moves a quote in Haywards Heath up or down is mostly pipe length, how high the outdoor unit goes, and whether a new electrical circuit is needed. Typical Large single work (one 5–7 kW unit for a large glazed space) lands around £2,495–£3,495 in this area.
Single unit
One 3.5–5 kW unit for a medium extension.
Large single
One 5–7 kW unit for a large glazed space.
Twin units
Two indoor units on a multi-split for long or L-shaped spaces.
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 Haywards Heath, 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 Haywards Heath 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. 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.
What is included
What a job in Haywards Heath covers:
- Placement clear of the hob and oven
- Hidden routes during the build, or neat surface routes after
- Handover of the remote or app
- Free survey with glazing and roof heat-gain check
- One or two units sized for the whole space
Nearby
If you are just outside Haywards Heath, we also work in Burgess Hill (3 miles), Crawley (9 miles) and East Grinstead (10 miles). See all services in Haywards Heath or air conditioning for extensions and kitchen-diners across West Sussex.