Air conditioning for extensions and kitchen-diners in Diss
In Diss, a side wall of a single-storey extension is usually the neatest place for the indoor unit. The East of England is one of the sunniest and driest parts of the UK, which makes glazed rooms and lofts hard to keep cool.
For a kitchen-diner in Diss, we place the indoor unit clear of the hob and plan the outdoor unit at the rear. Diss sits around 19 miles from Norwich, inside our Norfolk area. Homes in IP22 are all within our coverage.
Prices in Diss
Budget around £1,595–£4,995 per space including VAT for air conditioning for extensions and kitchen-diners in and around Diss. That is above the UK middle, mainly because labour and access cost more in the East of England. Quotes move with the length of the pipe run, where the outdoor unit can sit and how much electrical work the job needs. On our East of England figures, the Large single option (one 5–7 kW unit for a large glazed space) is 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
In England, most houses can have an outdoor unit under permitted development if it is no larger than 1.5 m³, meets the MCS 020(a) noise limit of 37 dB(A) at the nearest neighbour's window, and there are no more than two on a detached house or one on other houses. Listed buildings need consent.
The survey
A survey in Diss usually takes one to two hours. We measure the rooms, check the walls and the consumer unit, agree the outdoor unit position with you and photograph the pipe routes. We book surveys in Diss at a time that suits you, including early evenings by arrangement, and send the written quote afterwards.
What is included
Every job in Diss includes:
- Hidden routes during the build, or neat surface routes after
- 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
Neighbouring places we cover include Attleborough (11 miles), Wymondham (13 miles) and Stowmarket (14 miles). See all services in Diss or air conditioning for extensions and kitchen-diners across Norfolk.