Air conditioning for extensions and kitchen-diners in Finchley
London's dense streets hold heat overnight, so top-floor flats and loft rooms often stay warm long after sunset. An extension in Finchley with a roof lantern or large glazed doors can overheat quickly on a sunny afternoon.
For a kitchen-diner in Finchley, we place the indoor unit clear of the hob and plan the outdoor unit at the rear. Our London coverage takes in Finchley, about 8 miles from central London. Coverage includes N3.
Prices in Finchley
Our London guide price for air conditioning for extensions and kitchen-diners is £1,895–£5,845 per space, VAT included. Prices here sit above the national middle, reflecting London labour rates and parking and access costs. Longer or hidden pipe runs, high-level brackets and electrical upgrades are the usual reasons a quote lands at the top of the range. On our London figures, the Large single option (one 5–7 kW unit for a large glazed space) is about £2,695–£3,745.
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
Surveys in Finchley cover heat gain, pipe routes, electrics, access and noise to the nearest neighbour, so surprises on the day are rare. On a survey in Finchley 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
Included as standard in Finchley:
- 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
- Placement clear of the hob and oven
Nearby
If you are just outside Finchley, we also work in Muswell Hill (2 miles), Cricklewood (3 miles) and Kilburn (3 miles). See all services in Finchley or air conditioning for extensions and kitchen-diners across London.