Air conditioning for extensions and kitchen-diners in Farnborough
Summers in the South East are among the warmest in the country, so cooling often comes first, with efficient winter heating as a bonus. For a kitchen-diner in Farnborough, we place the indoor unit clear of the hob and plan the outdoor unit at the rear.
An extension in Farnborough with a roof lantern or large glazed doors can overheat quickly on a sunny afternoon. We cover Farnborough as part of Hampshire, roughly 39 miles from Southampton. Coverage includes GU11.
Prices in Farnborough
For Farnborough, expect roughly £1,745 to £5,445 per space, VAT included, adjusted for typical South East England rates. South East England is one of the dearer parts of the UK for trades, which shows in the range. What moves a quote in Farnborough up or down is mostly pipe length, how high the outdoor unit goes, and whether a new electrical circuit is needed. On our South East England figures, the Large single option (one 5–7 kW unit for a large glazed space) is about £2,495–£3,495.
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 Farnborough, 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 Farnborough 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 as standard in Farnborough:
- Handover of the remote or app
- One or two units sized for the whole space
- Placement clear of the hob and oven
- Pressure test, vacuum and commissioning
- Free survey with glazing and roof heat-gain check
Nearby
Nearby, we also cover Camberley (3 miles), Aldershot (3 miles) and Fleet (3 miles). See all services in Farnborough or air conditioning for extensions and kitchen-diners across Hampshire.