New build and renovation air conditioning across Dorset
For new Bournemouth extensions with flat roofs, the outdoor unit position is best agreed against the architect's drawings. First-fix pipework in Bournemouth 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 Dorset
For Dorset, expect roughly £395 to £895 per indoor position (first fix), VAT included, adjusted for typical South West England rates. That is close to the UK middle for this kind of work. Concealed pipework, access equipment for high walls and any electrical work are what push prices towards the upper figure. Typical First and second fix work (complete install priced per room including units) lands around £1,450–£2,950 in this area.
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
A survey in Dorset 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
Included with air conditioning for new builds and renovations across Dorset:
- Second-fix unit installation
- Nitrogen pressure test and labelled tails
- Commissioning records for building control files
- Design and setting-out with your builder
- First-fix pipework, drains and cables
- Vacuum, charge and commissioning
Towns in Dorset
Pick your town for local details, or see every service in Dorset.