New build and renovation air conditioning in Dorchester
South West summers are milder on the coast, but sheltered towns and south-facing rooms still overheat, and efficient winter heating matters just as much. Renovations in Dorchester are the easiest jobs to make invisible, because the pipework goes in before the plaster.
For new Dorchester extensions with flat roofs, the outdoor unit position is best agreed against the architect's drawings. We cover Dorchester as part of Dorset, roughly 24 miles from Bournemouth. Coverage includes DT1.
Prices in Dorchester
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. Quotes move with the length of the pipe run, where the outdoor unit can sit and how much electrical work the job needs. 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
First-fix work is about coordination, while the outdoor unit follows the normal planning rules for the property.
The survey
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. We book surveys in Dorchester at a time that suits you, including early evenings by arrangement, and send the written quote afterwards.
What is included
Here is what is included on every job in Dorchester:
- Commissioning records for building control files
- First-fix pipework, drains and cables
- Vacuum, charge and commissioning
- Second-fix unit installation
- Design and setting-out with your builder
Nearby
If you are just outside Dorchester, we also work in Weymouth (7 miles), Wareham (14 miles) and Bridport (14 miles). See all services in Dorchester or new build and renovation air conditioning across Dorset.