New build and renovation air conditioning in Diss
First-fix pipework in Diss extensions goes in while the joists and studs are open. 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.
Renovations in Diss are the easiest jobs to make invisible, because the pipework goes in before the plaster. Our Norfolk coverage takes in Diss, about 19 miles from Norwich. Coverage includes IP22.
Prices in Diss
Air conditioning for new builds and renovations in Diss typically comes in at £445–£995 per indoor position (first fix) including VAT, based on East of England rates. The East of England is one of the dearer parts of the UK for trades, which shows in the range. What moves a quote in Diss up or down is mostly pipe length, how high the outdoor unit goes, and whether a new electrical circuit is needed. For reference, the First and second fix option in Diss (complete install priced per room including units) usually comes to about £1,595–£3,295.
First fix only
Pipework and drains to each position for a later install.
First and second fix
Complete install priced per room including units.
Ducted design and build
Concealed ducted system designed into the build.
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%.
Working with your builder
On build projects the main thing is timing with your builder and electrician; we fit first-fix pipework before plastering and agree the outdoor unit position early.
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. 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.
What is included
What a job in Diss covers:
- Nitrogen pressure test and labelled tails
- First-fix pipework, drains and cables
- Design and setting-out with your builder
- Second-fix unit installation
- Vacuum, charge and commissioning
Nearby
We also cover Attleborough (11 miles), Wymondham (13 miles) and Stowmarket (14 miles). See all services in Diss or new build and renovation air conditioning across Norfolk.

