The Krez Group has been serving the construction industry for more than 100 years. The company operates various subsidiaries, such as Paul J. Krez Company, Spray Insulations, Barrier Corporation, Radian Corporation and John Caretti & Company. Its Paul J. Krez Company specializes in offering fabrication and installation services for pipes, breechings, precipitators, tanks, vessels, turbines, heat exchangers and removable insulation covers. Paul J. Krez Company has completed projects for Merchandise Mart, John Hancock Center, Sears Tower, Wrigley Building, McCormick Place East & South, University of Chicago Center for Advanced Medicine, Water Tower Place, CNA Insurance Building and Inland Steel. The Krez Group, through Spray Insulations, offers low-, medium- and high-density fireproofing services for indoor and outdoor applications.