Air conditioning for extensions and kitchen-diners in Gillingham
For a kitchen-diner in Gillingham, we place the indoor unit clear of the hob and plan the outdoor unit at the rear. Hot spells reach the South East early, which makes spring the easiest time to arrange an installation.
In Gillingham, a side wall of a single-storey extension is usually the neatest place for the indoor unit. We cover Gillingham as part of Kent, roughly 9 miles from Maidstone. We cover ME7 and the streets around them.
Prices in Gillingham
Budget around £1,745–£5,445 per space including VAT for air conditioning for extensions and kitchen-diners in and around Gillingham. 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. 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
England's rules let most houses fit an outdoor unit without a planning application, as long as the size, number and MCS 020(a) noise conditions are met. Flats, listed buildings and roof-mounted units are treated differently.
The survey
Surveys in Gillingham cover heat gain, pipe routes, electrics, access and noise to the nearest neighbour, so surprises on the day are rare. 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.
What is included
Every job in Gillingham includes:
- Placement clear of the hob and oven
- Hidden routes during the build, or neat surface routes after
- Handover of the remote or app
- Pressure test, vacuum and commissioning
- One or two units sized for the whole space
Nearby
If you are just outside Gillingham, we also work in Chatham (1 mile), Rochester (2 miles) and Strood (3 miles). See all services in Gillingham or air conditioning for extensions and kitchen-diners across Kent.

