At Regional Sewer and Watermain, we’re not just your average underground construction company; we’re the wizards of the underground world based right in Cambridge, ON! Founded in 1985, By Emilio Cabral, Regional Sewer and Watermain is a full-service underground construction company, assisting developers in creating a quality property to start building on; reconstructing sites, or helping to fix any underground watermains within your city. Working with Regional means you get quality work in a timely manor.