Air conditioning for extensions and kitchen-diners across South Yorkshire
For a kitchen-diner in Sheffield, we place the indoor unit clear of the hob and plan the outdoor unit at the rear. In Sheffield, a side wall of a single-storey extension is usually the neatest place for the indoor unit. Across Yorkshire, an air-to-air system is a practical way to replace old electric heaters, with cooling for the hottest spells.
Prices in South Yorkshire
Guide prices around South Yorkshire run from £1,395 to £4,245 per space including VAT. Labour rates in Yorkshire and the Humber keep this slightly under the national middle. What moves a quote in South Yorkshire up or down is mostly pipe length, how high the outdoor unit goes, and whether a new electrical circuit is needed. As an example, the Large single option (one 5–7 kW unit for a large glazed space) would typically be £1,945–£2,695 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
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
On a survey in South Yorkshire 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. Surveys in South Yorkshire cover heat gain, pipe routes, electrics, access and noise to the nearest neighbour, so surprises on the day are rare.
What is included
Included with air conditioning for extensions and kitchen-diners across South Yorkshire:
- Free survey with glazing and roof heat-gain check
- Handover of the remote or app
- Pressure test, vacuum and commissioning
- One or two units sized for the whole space
- Hidden routes during the build, or neat surface routes after
- Placement clear of the hob and oven
Towns in South Yorkshire
Pick your town for local details, or see every service in South Yorkshire.