New build and renovation air conditioning in Calne
Coastal breezes help, but inland South West towns and glazed rooms still see uncomfortable peaks. First-fix pipework in Calne extensions goes in while the joists and studs are open.
For new Calne extensions with flat roofs, the outdoor unit position is best agreed against the architect's drawings. Calne lies roughly 13 miles from Swindon, and we cover it as part of Wiltshire. Homes in SN11 are all within our coverage.
Prices in Calne
Guide prices around Calne run from £395 to £895 per indoor position (first fix) including VAT. That is close to the UK middle for this kind of work. 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 £1,450–£2,950 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
Because the pipework is built into the structure, coordination with your builder matters more than planning here; the outdoor unit follows the same rules as any other installation.
The survey
On a survey in Calne 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. 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.
What is included
What a job in Calne covers:
- Design and setting-out with your builder
- Vacuum, charge and commissioning
- Commissioning records for building control files
- Nitrogen pressure test and labelled tails
- Second-fix unit installation
Nearby
If you are just outside Calne, we also work in Chippenham (5 miles), Devizes (6 miles) and Corsham (8 miles). See all services in Calne or new build and renovation air conditioning across Wiltshire.

