Air conditioning for extensions and kitchen-diners in Islington
In London, heat soaks into brick and concrete during the day and comes back out at night, which is when it is hardest to sleep. In Islington, a side wall of a single-storey extension is usually the neatest place for the indoor unit.
For a kitchen-diner in Islington, we place the indoor unit clear of the hob and plan the outdoor unit at the rear. Islington lies roughly 3 miles from central London, and we cover it as part of London. We cover EC1P, EC4P, N1, N1C, N1P and N7 and the streets around them.
Prices in Islington
Guide prices around Islington run from £1,895 to £5,845 per space including VAT. London is one of the dearer parts of the UK for trades, which shows in the range. Longer or hidden pipe runs, high-level brackets and electrical upgrades are the usual reasons a quote lands at the top of the range. For reference, the Large single option in Islington (one 5–7 kW unit for a large glazed space) usually comes to 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
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. 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
What a job in Islington covers:
- One or two units sized for the whole space
- Handover of the remote or app
- Free survey with glazing and roof heat-gain check
- Placement clear of the hob and oven
- Pressure test, vacuum and commissioning
Nearby
We also cover Highbury (under a mile), Holloway (1 mile) and Camden Town (2 miles). See all services in Islington or air conditioning for extensions and kitchen-diners across London.

