New build and renovation air conditioning across Cornwall
For new Truro extensions with flat roofs, the outdoor unit position is best agreed against the architect's drawings. First-fix pipework in Truro extensions goes in while the joists and studs are open. Coastal breezes help, but inland South West towns and glazed rooms still see uncomfortable peaks.
Prices in Cornwall
In South West England, our guide range for air conditioning for new builds and renovations is £395–£895 per indoor position (first fix), including VAT. It sits near the middle of UK prices. What moves a quote in Cornwall up or down is mostly pipe length, how high the outdoor unit goes, and whether a new electrical circuit is needed. 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
We book surveys in Cornwall at a time that suits you, including early evenings by arrangement, and send the written quote afterwards. 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
Included with air conditioning for new builds and renovations across Cornwall:
- Second-fix unit installation
- First-fix pipework, drains and cables
- Commissioning records for building control files
- Nitrogen pressure test and labelled tails
- Design and setting-out with your builder
- Vacuum, charge and commissioning
Towns in Cornwall
Pick your town for local details, or see every service in Cornwall.