Air conditioning for extensions and kitchen-diners in Bournemouth
An extension in Bournemouth with a roof lantern or large glazed doors can overheat quickly on a sunny afternoon. 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.
For a kitchen-diner in Bournemouth, we place the indoor unit clear of the hob and plan the outdoor unit at the rear. We cover Bournemouth and the rest of Dorset, including Poole and Weymouth. We cover BH1, BH2, BH7 and BH10 and the streets around them.
Prices in Bournemouth
For Bournemouth, expect roughly £1,450 to £4,450 per space, VAT included, adjusted for typical South West England rates. It sits near the middle of UK prices. What moves a quote in Bournemouth up or down is mostly pipe length, how high the outdoor unit goes, and whether a new electrical circuit is needed. For reference, the Large single option in Bournemouth (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
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
A survey in Bournemouth 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. At the survey we look at how each room is used, where the sun hits it and how the pipes can reach the outside wall, then put it all in a written quote.
What is included
Here is what is included on every job in Bournemouth:
- Free survey with glazing and roof heat-gain check
- Placement clear of the hob and oven
- Pressure test, vacuum and commissioning
- One or two units sized for the whole space
- Handover of the remote or app
Nearby
We also cover Christchurch (4 miles), Poole (5 miles) and Ferndown (6 miles). See all services in Bournemouth or air conditioning for extensions and kitchen-diners across Dorset.

