New build and renovation air conditioning in Helston
First-fix pipework in Helston extensions goes in while the joists and studs are open. Damp South West winters make the dehumidifying side of a heat pump almost as useful as its cooling.
For new Helston extensions with flat roofs, the outdoor unit position is best agreed against the architect's drawings. Our Cornwall coverage takes in Helston, about 15 miles from Truro. Coverage includes TR13.
Prices in Helston
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. Longer or hidden pipe runs, high-level brackets and electrical upgrades are the usual reasons a quote lands at the top of the range. 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
First-fix work is about coordination, while the outdoor unit follows the normal planning rules for the property.
The survey
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. We book surveys in Helston at a time that suits you, including early evenings by arrangement, and send the written quote afterwards.
What is included
Every job in Helston includes:
- Second-fix unit installation
- Nitrogen pressure test and labelled tails
- Vacuum, charge and commissioning
- Design and setting-out with your builder
- Commissioning records for building control files
Nearby
We also cover Redruth (9 miles), Falmouth (10 miles) and Truro (15 miles). See all services in Helston or new build and renovation air conditioning across Cornwall.

