Company Performance Metrics
CornerStone One is a commercial contractor based in Southeastern Wisconsin, specializing in a wide range of construction services. Since its inception in 2003, the company has focused on providing professional, cost-effective solutions for various construction projects. CornerStone One is involved in community support through volunteer work, event
sponsorships, and charitable donations. The company's service team is adept at handling service work for commercial, industrial, and medical buildings, ensuring every project meets their high standards. With a commitment to efficiency, CornerStone One aims to prefabricate over 70% of all plumbing components in their 25,000 SF facility for timely installation. The company's adaptability is evident in their site utility team's capability to manage any type of system, from sanitary and water to storm sewer and fire protection systems.