Air conditioning for extensions and kitchen-diners in Aylesbury
Summers in the South East are among the warmest in the country, so cooling often comes first, with efficient winter heating as a bonus. In Aylesbury, a side wall of a single-storey extension is usually the neatest place for the indoor unit.
An extension in Aylesbury with a roof lantern or large glazed doors can overheat quickly on a sunny afternoon. Our Buckinghamshire coverage takes in Aylesbury, about 16 miles from Milton Keynes. We cover HP19 and HP20 and the streets around them.
Prices in Aylesbury
Budget around £1,745–£5,445 per space including VAT for air conditioning for extensions and kitchen-diners in and around Aylesbury. Prices here sit above the national middle, reflecting South East England labour rates and parking and access costs. 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. As an example, the Large single option (one 5–7 kW unit for a large glazed space) would typically be £2,495–£3,495 here.
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
We book surveys in Aylesbury at a time that suits you, including early evenings by arrangement, and send the written quote afterwards. 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 as standard in Aylesbury:
- Pressure test, vacuum and commissioning
- Hidden routes during the build, or neat surface routes after
- Handover of the remote or app
- Free survey with glazing and roof heat-gain check
- Placement clear of the hob and oven
Nearby
Close to Aylesbury, our coverage also includes Thame (8 miles), Leighton Buzzard (10 miles) and Berkhamsted (11 miles). See all services in Aylesbury or air conditioning for extensions and kitchen-diners across Buckinghamshire.