Air conditioning for extensions and kitchen-diners in Grays
Long sunny spells in the East of England put conservatories and top-floor rooms under real pressure. An extension in Grays with a roof lantern or large glazed doors can overheat quickly on a sunny afternoon.
For a kitchen-diner in Grays, we place the indoor unit clear of the hob and plan the outdoor unit at the rear. Grays is about 17 miles from Southend-on-Sea and falls within our Essex coverage. Coverage includes RM17.
Prices in Grays
In the East of England, our guide range for air conditioning for extensions and kitchen-diners is £1,595–£4,995 per space, including VAT. Prices here sit above the national middle, reflecting East of England labour rates and parking and access costs. Quotes move with the length of the pipe run, where the outdoor unit can sit and how much electrical work the job needs. 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
We book surveys in Grays at a time that suits you, including early evenings by arrangement, and send the written quote afterwards. A survey in Grays 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.
What is included
Included with air conditioning for extensions and kitchen-diners in Grays:
- One or two units sized for the whole space
- Handover of the remote or app
- Hidden routes during the build, or neat surface routes after
- Pressure test, vacuum and commissioning
- Placement clear of the hob and oven
Nearby
If you are just outside Grays, we also work in South Ockendon (3 miles), Gravesend (3 miles) and Dartford (5 miles). See all services in Grays or air conditioning for extensions and kitchen-diners across Essex.