Air conditioning for extensions and kitchen-diners in Stevenage
For a kitchen-diner in Stevenage, we place the indoor unit clear of the hob and plan the outdoor unit at the rear. Low rainfall and long summer days in the East of England make south-facing rooms the first to overheat.
An extension in Stevenage with a roof lantern or large glazed doors can overheat quickly on a sunny afternoon. Stevenage lies roughly 19 miles from Watford, and we cover it as part of Hertfordshire. Postcode districts we cover here include SG1.
Prices in Stevenage
For Stevenage, expect roughly £1,595 to £4,995 per space, VAT included, adjusted for typical East of England rates. The East of England 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. 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
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
We book surveys in Stevenage at a time that suits you, including early evenings by arrangement, and send the written quote afterwards. 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.
What is included
Every job in Stevenage includes:
- Free survey with glazing and roof heat-gain check
- Placement clear of the hob and oven
- Hidden routes during the build, or neat surface routes after
- Pressure test, vacuum and commissioning
- Handover of the remote or app
Nearby
Neighbouring places we cover include Hitchin (5 miles), Letchworth Garden City (5 miles) and Welwyn Garden City (7 miles). See all services in Stevenage or air conditioning for extensions and kitchen-diners across Hertfordshire.