Air conditioning for extensions and kitchen-diners in Selby
In Selby, a side wall of a single-storey extension is usually the neatest place for the indoor unit. In Yorkshire, south-facing lofts and glazed extensions are where summer cooling makes the biggest difference.
An extension in Selby with a roof lantern or large glazed doors can overheat quickly on a sunny afternoon. Our North Yorkshire coverage takes in Selby, about 12 miles from York. Postcode districts we cover here include YO8.
Prices in Selby
Air conditioning for extensions and kitchen-diners in Selby typically comes in at £1,395–£4,245 per space including VAT, based on Yorkshire and the Humber rates. Labour rates in Yorkshire and the Humber keep this slightly under the national middle. The biggest variables are the pipe route, access for the outdoor unit and the state of the consumer unit, all of which the survey settles. Typical Large single work (one 5–7 kW unit for a large glazed space) lands around £1,945–£2,695 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
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
The free survey is where the real price is set: room measurements, pipe and drain routes, electrical checks and the outdoor unit position, all written into your quote. On a survey in Selby the engineer looks at room size, glazing, the route for pipes and drains, the electrics and where the outdoor unit can sit quietly, then the written quote follows.
What is included
Included as standard in Selby:
- Pressure test, vacuum and commissioning
- Free survey with glazing and roof heat-gain check
- One or two units sized for the whole space
- Handover of the remote or app
- Placement clear of the hob and oven
Nearby
If you are just outside Selby, we also work in Pontefract (12 miles), York (12 miles) and Castleford (13 miles). See all services in Selby or air conditioning for extensions and kitchen-diners across North Yorkshire.