Air conditioning for extensions and kitchen-diners in Poole
An extension in Poole 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 Poole, we place the indoor unit clear of the hob and plan the outdoor unit at the rear. We cover Poole as part of Dorset, roughly 5 miles from Bournemouth. Postcode districts we cover here include BH15.
Prices in Poole
In South West England, our guide range for air conditioning for extensions and kitchen-diners is £1,450–£4,450 per space, including VAT. That is broadly in line with national guide prices. What moves a quote in Poole up or down is mostly pipe length, how high the outdoor unit goes, and whether a new electrical circuit is needed. 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
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
Surveys in Poole cover heat gain, pipe routes, electrics, access and noise to the nearest neighbour, so surprises on the day are rare. 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
Included with air conditioning for extensions and kitchen-diners in Poole:
- Handover of the remote or app
- One or two units sized for the whole space
- Free survey with glazing and roof heat-gain check
- Hidden routes during the build, or neat surface routes after
- Pressure test, vacuum and commissioning
Nearby
We also cover Bournemouth (5 miles), Wimborne Minster (5 miles) and Wareham (6 miles). See all services in Poole or air conditioning for extensions and kitchen-diners across Dorset.