Air conditioning for extensions and kitchen-diners in Calne
In the South West, a system that heats well through damp winters is often as valuable as summer cooling. An extension in Calne with a roof lantern or large glazed doors can overheat quickly on a sunny afternoon.
For a kitchen-diner in Calne, we place the indoor unit clear of the hob and plan the outdoor unit at the rear. Our Wiltshire coverage takes in Calne, about 13 miles from Swindon. Coverage includes SN11.
Prices in Calne
Air conditioning for extensions and kitchen-diners in Calne typically comes in at £1,450–£4,450 per space including VAT, based on South West England rates. That is close to the UK middle for this kind of work. 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 Calne (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
For most houses in Calne, 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 Calne 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
What a job in Calne covers:
- 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
- Placement clear of the hob and oven
- Free survey with glazing and roof heat-gain check
Nearby
Neighbouring places we cover include Chippenham (5 miles), Devizes (6 miles) and Corsham (8 miles). See all services in Calne or air conditioning for extensions and kitchen-diners across Wiltshire.