Air conditioning for extensions and kitchen-diners in Warminster
For a kitchen-diner in Warminster, we place the indoor unit clear of the hob and plan the outdoor unit at the rear. South West summers are milder on the coast, but sheltered towns and south-facing rooms still overheat, and efficient winter heating matters just as much.
In Warminster, a side wall of a single-storey extension is usually the neatest place for the indoor unit. Warminster is about 30 miles from Swindon and falls within our Wiltshire coverage. Postcode districts we cover here include BA12.
Prices in Warminster
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. On our South West England figures, the Large single option (one 5–7 kW unit for a large glazed space) is 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
England's rules let most houses fit an outdoor unit without a planning application, as long as the size, number and MCS 020(a) noise conditions are met. Flats, listed buildings and roof-mounted units are treated differently.
The survey
Surveys in Warminster 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 Warminster covers:
- Hidden routes during the build, or neat surface routes after
- Pressure test, vacuum and commissioning
- Placement clear of the hob and oven
- Free survey with glazing and roof heat-gain check
- Handover of the remote or app
Nearby
We also cover Frome (6 miles), Trowbridge (8 miles) and Devizes (13 miles). See all services in Warminster or air conditioning for extensions and kitchen-diners across Wiltshire.