Air conditioning for extensions and kitchen-diners in Leigh
Damp North West weather makes the dehumidifying mode of a modern split system genuinely useful for much of the year. In Leigh, a side wall of a single-storey extension is usually the neatest place for the indoor unit.
For a kitchen-diner in Leigh, we place the indoor unit clear of the hob and plan the outdoor unit at the rear. Leigh is about 12 miles from Manchester and falls within our Greater Manchester coverage. Coverage includes WN7.
Prices in Leigh
Budget around £1,395–£4,245 per space including VAT for air conditioning for extensions and kitchen-diners in and around Leigh. It is a touch below the UK middle, as trade rates in North West England tend to be. Quotes move with the length of the pipe run, where the outdoor unit can sit and how much electrical work the job needs. On our North West England figures, the Large single option (one 5–7 kW unit for a large glazed space) is 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
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
We book surveys in Leigh at a time that suits you, including early evenings by arrangement, and send the written quote afterwards. Surveys in Leigh cover heat gain, pipe routes, electrics, access and noise to the nearest neighbour, so surprises on the day are rare.
What is included
Every job in Leigh includes:
- Pressure test, vacuum and commissioning
- Handover of the remote or app
- Placement clear of the hob and oven
- Hidden routes during the build, or neat surface routes after
- One or two units sized for the whole space
Nearby
We also cover Atherton (2 miles), Tyldesley (2 miles) and Golborne (3 miles). See all services in Leigh or air conditioning for extensions and kitchen-diners across Greater Manchester.

