Air conditioning for extensions and kitchen-diners in Canvey Island
Long sunny spells in the East of England put conservatories and top-floor rooms under real pressure. In Canvey Island, a side wall of a single-storey extension is usually the neatest place for the indoor unit.
For a kitchen-diner in Canvey Island, we place the indoor unit clear of the hob and plan the outdoor unit at the rear. We cover Canvey Island as part of Essex, roughly 6 miles from Southend-on-Sea. Postcode districts we cover here include SS8.
Prices in Canvey Island
For Canvey Island, expect roughly £1,595 to £4,995 per space, VAT included, adjusted for typical East of England rates. That is above the UK middle, mainly because labour and access cost more in the East of England. What moves a quote in Canvey Island up or down is mostly pipe length, how high the outdoor unit goes, and whether a new electrical circuit is needed. On our East of England figures, the Large single option (one 5–7 kW unit for a large glazed space) is about £2,295–£3,195.
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
A survey in Canvey Island 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 with air conditioning for extensions and kitchen-diners in Canvey Island:
- Hidden routes during the build, or neat surface routes after
- Placement clear of the hob and oven
- Free survey with glazing and roof heat-gain check
- Handover of the remote or app
- One or two units sized for the whole space
Nearby
Nearby, we also cover South Benfleet (2 miles), Pitsea (4 miles) and Rayleigh (5 miles). See all services in Canvey Island or air conditioning for extensions and kitchen-diners across Essex.