Air conditioning for extensions and kitchen-diners in Braintree
In Braintree, a side wall of a single-storey extension is usually the neatest place for the indoor unit. Long sunny spells in the East of England put conservatories and top-floor rooms under real pressure.
For a kitchen-diner in Braintree, we place the indoor unit clear of the hob and plan the outdoor unit at the rear. Braintree lies roughly 25 miles from Southend-on-Sea, and we cover it as part of Essex. That includes the CM7 and CM77 postcode districts.
Prices in Braintree
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. The East of England is one of the dearer parts of the UK for trades, which shows in the range. What moves a quote in Braintree 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
We book surveys in Braintree at a time that suits you, including early evenings by arrangement, and send the written quote afterwards. A survey in Braintree 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 as standard in Braintree:
- Handover of the remote or app
- Free survey with glazing and roof heat-gain check
- Hidden routes during the build, or neat surface routes after
- Placement clear of the hob and oven
- One or two units sized for the whole space
Nearby
If you are just outside Braintree, we also work in Witham (7 miles), Chelmsford (10 miles) and Maldon (11 miles). See all services in Braintree or air conditioning for extensions and kitchen-diners across Essex.

