Air conditioning for extensions and kitchen-diners in Crowborough
Hot spells reach the South East early, which makes spring the easiest time to arrange an installation. For a kitchen-diner in Crowborough, we place the indoor unit clear of the hob and plan the outdoor unit at the rear.
In Crowborough, a side wall of a single-storey extension is usually the neatest place for the indoor unit. Crowborough sits around 21 miles from Brighton, inside our East Sussex area. Coverage includes TN6.
Prices in Crowborough
For Crowborough, expect roughly £1,745 to £5,445 per space, 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. What moves a quote in Crowborough up or down is mostly pipe length, how high the outdoor unit goes, and whether a new electrical circuit is needed. For reference, the Large single option in Crowborough (one 5–7 kW unit for a large glazed space) usually comes to about £2,495–£3,495.
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
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
We book surveys in Crowborough at a time that suits you, including early evenings by arrangement, and send the written quote afterwards. Surveys in Crowborough cover heat gain, pipe routes, electrics, access and noise to the nearest neighbour, so surprises on the day are rare.
What is included
What a job in Crowborough covers:
- One or two units sized for the whole space
- Free survey with glazing and roof heat-gain check
- Handover of the remote or app
- Placement clear of the hob and oven
- Pressure test, vacuum and commissioning
Nearby
If you are just outside Crowborough, we also work in Tunbridge Wells (7 miles), East Grinstead (9 miles) and Tonbridge (10 miles). See all services in Crowborough or air conditioning for extensions and kitchen-diners across East Sussex.