New build and renovation air conditioning in Marlborough
First-fix pipework in Marlborough extensions goes in while the joists and studs are open. In the South West, a system that heats well through damp winters is often as valuable as summer cooling.
For new Marlborough extensions with flat roofs, the outdoor unit position is best agreed against the architect's drawings. Marlborough sits around 10 miles from Swindon, inside our Wiltshire area. Coverage includes SN8.
Prices in Marlborough
Air conditioning for new builds and renovations in Marlborough typically comes in at £395–£895 per indoor position (first fix) including VAT, based on South West England rates. That is broadly in line with national guide prices. The biggest variables are the pipe route, access for the outdoor unit and the state of the consumer unit, all of which the survey settles. 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
On a survey in Marlborough 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. Surveys in Marlborough cover heat gain, pipe routes, electrics, access and noise to the nearest neighbour, so surprises on the day are rare.
What is included
Every job in Marlborough includes:
- Nitrogen pressure test and labelled tails
- Second-fix unit installation
- Design and setting-out with your builder
- Vacuum, charge and commissioning
- Commissioning records for building control files
Nearby
Nearby, we also cover Swindon (10 miles), Calne (12 miles) and Devizes (12 miles). See all services in Marlborough or new build and renovation air conditioning across Wiltshire.