Air conditioning for extensions and kitchen-diners in Amersham
For a kitchen-diner in Amersham, we place the indoor unit clear of the hob and plan the outdoor unit at the rear. Hot spells reach the South East early, which makes spring the easiest time to arrange an installation.
In Amersham, a side wall of a single-storey extension is usually the neatest place for the indoor unit. We cover Amersham as part of Buckinghamshire, roughly 27 miles from Milton Keynes. Coverage includes HP7.
Prices in Amersham
Air conditioning for extensions and kitchen-diners in Amersham typically comes in at £1,745–£5,445 per space including VAT, based on South East England rates. Prices here sit above the national middle, reflecting South East England labour rates and parking and access costs. Concealed pipework, access equipment for high walls and any electrical work are what push prices towards the upper figure. Typical Large single work (one 5–7 kW unit for a large glazed space) lands around £2,495–£3,495 in this area.
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
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. On a survey in Amersham the engineer looks at room size, glazing, the route for pipes and drains, the electrics and where the outdoor unit can sit quietly, then the written quote follows.
What is included
Here is what is included on every job in Amersham:
- Handover of the remote or app
- Free survey with glazing and roof heat-gain check
- Hidden routes during the build, or neat surface routes after
- One or two units sized for the whole space
- Placement clear of the hob and oven
Nearby
Nearby, we also cover High Wycombe (6 miles), Rickmansworth (6 miles) and Berkhamsted (7 miles). See all services in Amersham or air conditioning for extensions and kitchen-diners across Buckinghamshire.