Air conditioning for extensions and kitchen-diners in Winchester
Hot spells reach the South East early, which makes spring the easiest time to arrange an installation. For a kitchen-diner in Winchester, we place the indoor unit clear of the hob and plan the outdoor unit at the rear.
In Winchester, a side wall of a single-storey extension is usually the neatest place for the indoor unit. Winchester is about 12 miles from Southampton and falls within our Hampshire coverage. Homes in SO23 and SO25 are all within our coverage.
Prices in Winchester
Guide prices around Winchester run from £1,745 to £5,445 per space including VAT. That is above the UK middle, mainly because labour and access cost more in South East England. 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. On our South East England figures, the Large single option (one 5–7 kW unit for a large glazed space) is about £2,495–£3,495.
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
For most houses in Winchester, the outdoor unit is permitted development if it passes the MCS 020(a) noise check (37 dB(A) or less at the nearest neighbouring window) and stays within the size and number limits. We run that check on survey.
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. 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
What a job in Winchester covers:
- Pressure test, vacuum and commissioning
- Placement clear of the hob and oven
- Free survey with glazing and roof heat-gain check
- One or two units sized for the whole space
- Handover of the remote or app
Nearby
Nearby, we also cover Eastleigh (7 miles), Southampton (12 miles) and Totton (13 miles). See all services in Winchester or air conditioning for extensions and kitchen-diners across Hampshire.