Air conditioning for extensions and kitchen-diners across Cheshire
For a kitchen-diner in Warrington, we place the indoor unit clear of the hob and plan the outdoor unit at the rear. In Warrington, a side wall of a single-storey extension is usually the neatest place for the indoor unit. North West summers are cooler, so many systems here earn their keep as efficient heaters, with cooling for the warmest weeks.
Prices in Cheshire
For Cheshire, expect roughly £1,395 to £4,245 per space, VAT included, adjusted for typical North West England rates. It is a touch below the UK middle, as trade rates in North West England tend to be. Concealed pipework, access equipment for high walls and any electrical work are what push prices towards the upper figure. For reference, the Large single option in Cheshire (one 5–7 kW unit for a large glazed space) usually comes to about £1,945–£2,695.
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
A survey in Cheshire 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. 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
Included with air conditioning for extensions and kitchen-diners across Cheshire:
- Handover of the remote or app
- Hidden routes during the build, or neat surface routes after
- Pressure test, vacuum and commissioning
- Placement clear of the hob and oven
- One or two units sized for the whole space
- Free survey with glazing and roof heat-gain check
Towns in Cheshire
Pick your town for local details, or see every service in Cheshire.

