Air conditioning for extensions and kitchen-diners in Plymouth
Coastal breezes help, but inland South West towns and glazed rooms still see uncomfortable peaks. In Plymouth, a side wall of a single-storey extension is usually the neatest place for the indoor unit.
An extension in Plymouth with a roof lantern or large glazed doors can overheat quickly on a sunny afternoon. We cover Plymouth and the rest of Devon, including Exeter and Paignton. Postcode districts we cover here include PL2 and PL4.
Prices in Plymouth
Air conditioning for extensions and kitchen-diners in Plymouth 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. 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
In England, most houses can have an outdoor unit under permitted development if it is no larger than 1.5 m³, meets the MCS 020(a) noise limit of 37 dB(A) at the nearest neighbour's window, and there are no more than two on a detached house or one on other houses. Listed buildings need consent.
The survey
Surveys in Plymouth cover heat gain, pipe routes, electrics, access and noise to the nearest neighbour, so surprises on the day are rare. A survey in Plymouth usually takes one to two hours. We measure the rooms, check the walls and the consumer unit, agree the outdoor unit position with you and photograph the pipe routes.
What is included
Included with air conditioning for extensions and kitchen-diners in Plymouth:
- Free survey with glazing and roof heat-gain check
- Hidden routes during the build, or neat surface routes after
- Pressure test, vacuum and commissioning
- One or two units sized for the whole space
- Placement clear of the hob and oven
Nearby
We also cover Plymstock (2 miles), Saltash (4 miles) and Liskeard (15 miles). See all services in Plymouth or air conditioning for extensions and kitchen-diners across Devon.