Air conditioning for extensions and kitchen-diners in Basildon
Bright summers in the East of England mean solar gain through glass is usually the biggest load to design for. In Basildon, a side wall of a single-storey extension is usually the neatest place for the indoor unit.
For a kitchen-diner in Basildon, we place the indoor unit clear of the hob and plan the outdoor unit at the rear. Basildon sits around 11 miles from Southend-on-Sea, inside our Essex area. Coverage includes SS14.
Prices in Basildon
Air conditioning for extensions and kitchen-diners in Basildon typically comes in at £1,595–£4,995 per space including VAT, based on East of England rates. Prices here sit above the national middle, reflecting East of England labour rates and parking and access costs. Longer or hidden pipe runs, high-level brackets and electrical upgrades are the usual reasons a quote lands at the top of the range. For reference, the Large single option in Basildon (one 5–7 kW unit for a large glazed space) usually comes to 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
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. We book surveys in Basildon at a time that suits you, including early evenings by arrangement, and send the written quote afterwards.
What is included
Here is what is included on every job in Basildon:
- Hidden routes during the build, or neat surface routes after
- Handover of the remote or app
- One or two units sized for the whole space
- Pressure test, vacuum and commissioning
- Free survey with glazing and roof heat-gain check
Nearby
Nearby, we also cover Pitsea (2 miles), Stanford-le-Hope (3 miles) and Wickford (4 miles). See all services in Basildon or air conditioning for extensions and kitchen-diners across Essex.