Multi-split air conditioning in Devizes
Twin and triple systems suit Devizes homes where bedrooms sit above the kitchen and one rear wall can take the outdoor unit. Coastal breezes help, but inland South West towns and glazed rooms still see uncomfortable peaks.
Multi-split is a good fit for Devizes flats and maisonettes where only a balcony or one rear wall is available. Devizes is about 17 miles from Swindon and falls within our Wiltshire coverage. Postcode districts we cover here include SN10.
Prices in Devizes
In South West England, our guide range for multi-split air conditioning is £2,450–£7,750 for 2–4 rooms, including VAT. That is broadly in line with national guide prices. Concealed pipework, access equipment for high walls and any electrical work are what push prices towards the upper figure. Typical Triple work (three rooms with mixed indoor styles and Wi-Fi control throughout) lands around £3,350–£5,450 in this area.
Twin
Two rooms on one outdoor unit, wall-mounted indoor units, standard routes.
Triple
Three rooms with mixed indoor styles and Wi-Fi control throughout.
Quad
Four or five rooms, longer concealed runs or a ducted unit in a loft void.
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
On a survey in Devizes the engineer looks at room size, glazing, the route for pipes and drains, the electrics and where the outdoor unit can sit quietly, then the written quote follows. We book surveys in Devizes at a time that suits you, including early evenings by arrangement, and send the written quote afterwards.
What is included
Here is what is included on every job in Devizes:
- Planned pipe routes through lofts, floors or trunking
- Commissioning and a walk-round of every room's controls
- An indoor unit and controls for every room
- Free survey with a room-by-room heat-gain check
- One outdoor unit sized to the combined load
Nearby
Nearby, we also cover Calne (6 miles), Chippenham (9 miles) and Trowbridge (10 miles). See all services in Devizes or multi-split air conditioning across Wiltshire.