Air conditioning for extensions and kitchen-diners in Walsall
An extension in Walsall with a roof lantern or large glazed doors can overheat quickly on a sunny afternoon. In the West Midlands, sizing for winter heating first and then checking summer cooling usually gives the best all-year system.
In Walsall, a side wall of a single-storey extension is usually the neatest place for the indoor unit. Our West Midlands coverage takes in Walsall, about 8 miles from Birmingham. Postcode districts we cover here include WS1, WS2 and WS5.
Prices in Walsall
In the West Midlands, our guide range for air conditioning for extensions and kitchen-diners is £1,395–£4,345 per space, including VAT. It sits near the middle of UK prices. Quotes move with the length of the pipe run, where the outdoor unit can sit and how much electrical work the job needs. Typical Large single work (one 5–7 kW unit for a large glazed space) lands around £1,995–£2,795 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
For most houses in Walsall, the outdoor unit is permitted development if it passes the MCS 020(a) noise check (37 dB(A) or less at the nearest neighbouring window) and stays within the size and number limits. We run that check on survey.
The survey
Surveys in Walsall cover heat gain, pipe routes, electrics, access and noise to the nearest neighbour, so surprises on the day are rare. The free survey is where the real price is set: room measurements, pipe and drain routes, electrical checks and the outdoor unit position, all written into your quote.
What is included
Every job in Walsall 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
If you are just outside Walsall, we also work in Bloxwich (2 miles), Aldridge (3 miles) and Willenhall (3 miles). See all services in Walsall or air conditioning for extensions and kitchen-diners across the West Midlands.

