Air conditioning for extensions and kitchen-diners in Tonbridge
In Tonbridge, a side wall of a single-storey extension is usually the neatest place for the indoor unit. The South East sees some of the UK's warmest summer days, and south-facing rooms and conservatories feel it first.
An extension in Tonbridge with a roof lantern or large glazed doors can overheat quickly on a sunny afternoon. Tonbridge sits around 12 miles from Maidstone, inside our Kent area. Postcode districts we cover here include TN9.
Prices in Tonbridge
For Tonbridge, 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 Tonbridge up or down is mostly pipe length, how high the outdoor unit goes, and whether a new electrical circuit is needed. On our South East England figures, the Large single option (one 5–7 kW unit for a large glazed space) is 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
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 Tonbridge cover heat gain, pipe routes, electrics, access and noise to the nearest neighbour, so surprises on the day are rare. A survey in Tonbridge 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.
What is included
Every job in Tonbridge includes:
- Placement clear of the hob and oven
- Handover of the remote or app
- Pressure test, vacuum and commissioning
- One or two units sized for the whole space
- Hidden routes during the build, or neat surface routes after
Nearby
If you are just outside Tonbridge, we also work in Tunbridge Wells (4 miles), Sevenoaks (6 miles) and Crowborough (10 miles). See all services in Tonbridge or air conditioning for extensions and kitchen-diners across Kent.