Air conditioning for extensions and kitchen-diners in Shepton Mallet
In Shepton Mallet, a side wall of a single-storey extension is usually the neatest place for the indoor unit. Coastal breezes help, but inland South West towns and glazed rooms still see uncomfortable peaks.
For a kitchen-diner in Shepton Mallet, we place the indoor unit clear of the hob and plan the outdoor unit at the rear. Shepton Mallet is about 27 miles from Taunton and falls within our Somerset coverage. We cover BA4 and the streets around them.
Prices in Shepton Mallet
Our South West England guide price for air conditioning for extensions and kitchen-diners is £1,450–£4,450 per space, VAT included. It sits near the middle of UK prices. 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. For reference, the Large single option in Shepton Mallet (one 5–7 kW unit for a large glazed space) usually comes to about £2,050–£2,850.
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 Shepton Mallet at a time that suits you, including early evenings by arrangement, and send the written quote afterwards. Surveys in Shepton Mallet cover heat gain, pipe routes, electrics, access and noise to the nearest neighbour, so surprises on the day are rare.
What is included
Included with air conditioning for extensions and kitchen-diners in Shepton Mallet:
- Placement clear of the hob and oven
- Hidden routes during the build, or neat surface routes after
- Pressure test, vacuum and commissioning
- One or two units sized for the whole space
- Handover of the remote or app
Nearby
If you are just outside Shepton Mallet, we also work in Wells (5 miles), Glastonbury (8 miles) and Street (10 miles). See all services in Shepton Mallet or air conditioning for extensions and kitchen-diners across Somerset.

