Air conditioning for extensions and kitchen-diners in Rochester
For a kitchen-diner in Rochester, we place the indoor unit clear of the hob and plan the outdoor unit at the rear. In the South East, loft rooms and glazed extensions can climb well above the outside temperature on a sunny afternoon.
An extension in Rochester with a roof lantern or large glazed doors can overheat quickly on a sunny afternoon. Rochester sits around 8 miles from Maidstone, inside our Kent area. That includes the ME1 postcode district.
Prices in Rochester
Our South East England guide price for air conditioning for extensions and kitchen-diners is £1,745–£5,445 per space, VAT included. South East England is one of the dearer parts of the UK for trades, which shows in the range. 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. 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
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 Rochester 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 as standard in Rochester:
- Handover of the remote or app
- Free survey with glazing and roof heat-gain check
- Pressure test, vacuum and commissioning
- One or two units sized for the whole space
- Placement clear of the hob and oven
Nearby
If you are just outside Rochester, we also work in Chatham (1 mile), Strood (1 mile) and Gillingham (2 miles). See all services in Rochester or air conditioning for extensions and kitchen-diners across Kent.