New build and renovation air conditioning in Chelmsford
Low rainfall and long summer days in the East of England make south-facing rooms the first to overheat. Renovations in Chelmsford are the easiest jobs to make invisible, because the pipework goes in before the plaster.
For new Chelmsford extensions with flat roofs, the outdoor unit position is best agreed against the architect's drawings. Chelmsford sits around 17 miles from Southend-on-Sea, inside our Essex area. Homes in CM1 are all within our coverage.
Prices in Chelmsford
For Chelmsford, expect roughly £445 to £995 per indoor position (first fix), VAT included, adjusted for typical East of England rates. 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. As an example, the First and second fix option (complete install priced per room including units) would typically be £1,595–£3,295 here.
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
Surveys in Chelmsford cover heat gain, pipe routes, electrics, access and noise to the nearest neighbour, so surprises on the day are rare. 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
Included as standard in Chelmsford:
- Vacuum, charge and commissioning
- Commissioning records for building control files
- Design and setting-out with your builder
- First-fix pipework, drains and cables
- Nitrogen pressure test and labelled tails
Nearby
Neighbouring places we cover include Billericay (8 miles), Witham (9 miles) and Maldon (9 miles). See all services in Chelmsford or new build and renovation air conditioning across Essex.