Air conditioning for extensions and kitchen-diners in Coulsdon
An extension in Coulsdon with a roof lantern or large glazed doors can overheat quickly on a sunny afternoon. In London, heat soaks into brick and concrete during the day and comes back out at night, which is when it is hardest to sleep.
In Coulsdon, a side wall of a single-storey extension is usually the neatest place for the indoor unit. Our London coverage takes in Coulsdon, about 12 miles from central London. That includes the CR5 postcode district.
Prices in Coulsdon
Budget around £1,895–£5,845 per space including VAT for air conditioning for extensions and kitchen-diners in and around Coulsdon. London is one of the dearer parts of the UK for trades, which shows in the range. Concealed pipework, access equipment for high walls and any electrical work are what push prices towards the upper figure. As an example, the Large single option (one 5–7 kW unit for a large glazed space) would typically be £2,695–£3,745 here.
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
England's rules let most houses fit an outdoor unit without a planning application, as long as the size, number and MCS 020(a) noise conditions are met. Flats, listed buildings and roof-mounted units are treated differently.
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 Coulsdon at a time that suits you, including early evenings by arrangement, and send the written quote afterwards.
What is included
Included with air conditioning for extensions and kitchen-diners in Coulsdon:
- Placement clear of the hob and oven
- Hidden routes during the build, or neat surface routes after
- Handover of the remote or app
- Pressure test, vacuum and commissioning
- One or two units sized for the whole space
Nearby
We also cover Purley (2 miles), Banstead (3 miles) and Sutton (3 miles). See all services in Coulsdon or air conditioning for extensions and kitchen-diners across London.