Air conditioning for extensions and kitchen-diners in North Walsham
An extension in North Walsham with a roof lantern or large glazed doors can overheat quickly on a sunny afternoon. Bright summers in the East of England mean solar gain through glass is usually the biggest load to design for.
In North Walsham, a side wall of a single-storey extension is usually the neatest place for the indoor unit. Our Norfolk coverage takes in North Walsham, about 14 miles from Norwich. We cover NR28 and the streets around them.
Prices in North Walsham
Guide prices around North Walsham run from £1,595 to £4,995 per space including VAT. The East of England is one of the dearer parts of the UK for trades, which shows in the range. Quotes move with the length of the pipe run, where the outdoor unit can sit and how much electrical work the job needs. For reference, the Large single option in North Walsham (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
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
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. On a survey in North Walsham 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
What a job in North Walsham covers:
- Free survey with glazing and roof heat-gain check
- One or two units sized for the whole space
- Placement clear of the hob and oven
- Pressure test, vacuum and commissioning
- Hidden routes during the build, or neat surface routes after
Nearby
Nearby, we also cover Cromer (8 miles), Norwich (14 miles) and Great Yarmouth (21 miles). See all services in North Walsham or air conditioning for extensions and kitchen-diners across Norfolk.