Air conditioning for extensions and kitchen-diners across Buckinghamshire
For a kitchen-diner in Milton Keynes, we place the indoor unit clear of the hob and plan the outdoor unit at the rear. An extension in Milton Keynes with a roof lantern or large glazed doors can overheat quickly on a sunny afternoon. Hot spells reach the South East early, which makes spring the easiest time to arrange an installation.
Prices in Buckinghamshire
Our South East England guide price for air conditioning for extensions and kitchen-diners is £1,745–£5,445 per space, VAT included. That is above the UK middle, mainly because labour and access cost more in South East England. What moves a quote in Buckinghamshire up or down is mostly pipe length, how high the outdoor unit goes, and whether a new electrical circuit is needed. 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
For most houses in Buckinghamshire, the outdoor unit is permitted development if it passes the MCS 020(a) noise check (37 dB(A) or less at the nearest neighbouring window) and stays within the size and number limits. We run that check on survey.
The survey
A survey in Buckinghamshire 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. The free survey is where the real price is set: room measurements, pipe and drain routes, electrical checks and the outdoor unit position, all written into your quote.
What is included
Included with air conditioning for extensions and kitchen-diners across Buckinghamshire:
- Free survey with glazing and roof heat-gain check
- Hidden routes during the build, or neat surface routes after
- Placement clear of the hob and oven
- One or two units sized for the whole space
- Pressure test, vacuum and commissioning
- Handover of the remote or app
Towns in Buckinghamshire
Pick your town for local details, or see every service in Buckinghamshire.