Wiegmann Associates has been named a 2018 Midwest Top Specialty Contractor by Engineering News Record, the leading international construction industry news magazine. With $21.63 million in 2017 revenue, Wiegmann Associates ranks among the top 50 of combined specialty subcontractors.


2018 List



Wiegmann Associates is a St. Louis-based mechanical contractor serving the commercial, industrial and institutional markets, and a national leader in design/build HVAC projects.  Since 1995, Wiegmann Associates has engineered and installed innovative, energy saving and cost-efficient HVAC solutions and automation controls for clients in a wide range of industries. Wiegmann also provides 24-hour preventative maintenance programs and service in the St. Louis region. Wiegmann is ranked among the top 50 specialty contractors in the Midwest by Engineering News Record and the top 10 largest mechanical contractors by the St. Louis Business Journal. For more information, visit www.wiegmannassoc.com or call (636) 940-1056.