In 1969, Calco Ltd. was formed on the Southwest side of Chicago, IL.
Calco was able to quickly become a leader in technology like filtration, ion exchange, reverse osmosis, ultraviolet sterilization, microfiltration, to provide high purity water management for commercial needs.
Calco later moved to Hanover Park, IL where it operates today.
A family business, into it's third generation, shipping DI tanks nationwide, and providing Chicago businesses with high purity water.
Our sister Company
With Calco's water industry expertise, Water One was founded shortly after Calco. Water One purifies drinking water through reverse osmosis and delivers to both Southwest Florida and the Chicago Suburbs.