Air conditioning for extensions and kitchen-diners in Warrington
An extension in Warrington with a roof lantern or large glazed doors can overheat quickly on a sunny afternoon. Milder summers in the North West mean designing for winter comfort as much as for a heatwave.
For a kitchen-diner in Warrington, we place the indoor unit clear of the hob and plan the outdoor unit at the rear. As well as Warrington itself, our Cheshire coverage takes in Chester, Crewe and the towns around them. Postcode districts we cover here include WA1 and WA55.
Prices in Warrington
In North West England, our guide range for air conditioning for extensions and kitchen-diners is £1,395–£4,245 per space, including VAT. Labour rates in North West England keep this slightly under the national middle. Quotes move with the length of the pipe run, where the outdoor unit can sit and how much electrical work the job needs. As an example, the Large single option (one 5–7 kW unit for a large glazed space) would typically be £1,945–£2,695 here.
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
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. A survey in Warrington 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 Warrington includes:
- Placement clear of the hob and oven
- Free survey with glazing and roof heat-gain check
- Hidden routes during the build, or neat surface routes after
- Handover of the remote or app
- One or two units sized for the whole space
Nearby
Close to Warrington, our coverage also includes Great Sankey (2 miles), Newton-le-Willows (4 miles) and Golborne (6 miles). See all services in Warrington or air conditioning for extensions and kitchen-diners across Cheshire.

