Since the 1890s, Corrigan Company has built a reputation as a full-service mechanical contractor, specializing in the delivery of quality results on jobs of all sizes. Corrigan s customers include Anheuser-Busch, ADM, Boeing, Chrysler, Ford, General Motors, Granite City Steel, Lever Brothers, Monsanto, Mallinckrodt, Merck, AmerenUE, Southwestern Bell, Met Life and Ritz Carlton. All of the company s sheet metal product and ductwork systems are provided by Lyon Sheet Metal Works, a subsidiary of Corrigan CompanyLyon also fabricates fiberglass and plastic ducts. Corrigan's full range of HVAC capabilities includes complete system design, in-house ductwork fabrication, equipment setting, system installation, coordination with new or existing mechanical systems & ongoing system maintenance. The company is headquartered in St. Louis.