Air conditioning for extensions and kitchen-diners in Brentwood
For a kitchen-diner in Brentwood, we place the indoor unit clear of the hob and plan the outdoor unit at the rear. Long sunny spells in the East of England put conservatories and top-floor rooms under real pressure.
In Brentwood, a side wall of a single-storey extension is usually the neatest place for the indoor unit. We cover Brentwood as part of Essex, roughly 18 miles from Southend-on-Sea. Postcode districts we cover here include CM14.
Prices in Brentwood
Our East of England guide price for air conditioning for extensions and kitchen-diners is £1,595–£4,995 per space, VAT included. That is above the UK middle, mainly because labour and access cost more in the East of England. Concealed pipework, access equipment for high walls and any electrical work are what push prices towards the upper figure. Typical Large single work (one 5–7 kW unit for a large glazed space) lands around £2,295–£3,195 in this area.
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
A survey in Brentwood 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. We book surveys in Brentwood at a time that suits you, including early evenings by arrangement, and send the written quote afterwards.
What is included
Included as standard in Brentwood:
- Handover of the remote or app
- Placement clear of the hob and oven
- Hidden routes during the build, or neat surface routes after
- One or two units sized for the whole space
- Pressure test, vacuum and commissioning
Nearby
Neighbouring places we cover include Billericay (5 miles), Hornchurch (6 miles) and Romford (6 miles). See all services in Brentwood or air conditioning for extensions and kitchen-diners across Essex.