Air conditioning for extensions and kitchen-diners across Norfolk
In Norwich, a side wall of a single-storey extension is usually the neatest place for the indoor unit. An extension in Norwich with a roof lantern or large glazed doors can overheat quickly on a sunny afternoon. Low rainfall and long summer days in the East of England make south-facing rooms the first to overheat.
Prices in Norfolk
Air conditioning for extensions and kitchen-diners in Norfolk typically comes in at £1,595–£4,995 per space including VAT, based on East of England rates. That is above the UK middle, mainly because labour and access cost more in the East of England. Concealed pipework, access equipment for high walls and any electrical work are what push prices towards the upper figure. For reference, the Large single option in Norfolk (one 5–7 kW unit for a large glazed space) usually comes to 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
For most houses in Norfolk, 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. We book surveys in Norfolk 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 across Norfolk:
- Placement clear of the hob and oven
- Pressure test, vacuum and commissioning
- One or two units sized for the whole space
- Hidden routes during the build, or neat surface routes after
- Handover of the remote or app
- Free survey with glazing and roof heat-gain check
Towns in Norfolk
Pick your town for local details, or see every service in Norfolk.