Air conditioning for extensions and kitchen-diners in Highbury
For a kitchen-diner in Highbury, we place the indoor unit clear of the hob and plan the outdoor unit at the rear. Many London homes are flats or tall terraces, where heat rises to the top floor and the bedrooms bear the brunt of a hot spell.
An extension in Highbury with a roof lantern or large glazed doors can overheat quickly on a sunny afternoon. Highbury lies roughly 4 miles from central London, and we cover it as part of London. That includes the N5 postcode district.
Prices in Highbury
Budget around £1,895–£5,845 per space including VAT for air conditioning for extensions and kitchen-diners in and around Highbury. That is above the UK middle, mainly because labour and access cost more in London. The biggest variables are the pipe route, access for the outdoor unit and the state of the consumer unit, all of which the survey settles. For reference, the Large single option in Highbury (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
Since 29 May 2025, England's permitted development rules allow larger outdoor units (up to 1.5 m³) and no longer require a 1 m gap to the boundary, provided the MCS 020(a) noise check is met. Listed buildings and pitched-roof installs still need permission.
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. Surveys in Highbury cover heat gain, pipe routes, electrics, access and noise to the nearest neighbour, so surprises on the day are rare.
What is included
Included with air conditioning for extensions and kitchen-diners in Highbury:
- Placement clear of the hob and oven
- Pressure test, vacuum and commissioning
- One or two units sized for the whole space
- Hidden routes during the build, or neat surface routes after
- Free survey with glazing and roof heat-gain check
Nearby
Neighbouring places we cover include Islington (under a mile), Holloway (1 mile) and Stamford Hill (2 miles). See all services in Highbury or air conditioning for extensions and kitchen-diners across London.