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  • 24-Hour Emergency Service: (636) 757-2000
  • SystemAire & Wiegmann Associates Combine Forces

    Wiegmann Associates Inc., locally based in St. Charles, Missouri, has acquired the service division of SystemAire, Inc.  Seventeen of of the SystemAire technicians and staff will join the Wiegmann team.

    Starting January 15, they, and the rest of the Wiegmann service team, will fulfill our clients’ HVAC service needs.

    The leadership of Wiegmann and SystemAire have enjoyed a multi-decade relationship.  One of the largest mechanical contractors in the region with extensive national design/build expertise, Wiegmann also is a multi-generational family company.  They bring extensive experience servicing, repairing, designing and constructing mechanical systems for school, healthcare, financial, corporate and government facilities. Our established clients and new clients alike will benefit from Wiegmann’s expertise, strength and stability.

    About Wiegmann Associates

    Wiegmann Associates’ HVAC service is backed by an excellent team, fifteen engineers, and a dedicated and experienced energy management / controls division.  We can handle your full range of HVAC needs – from the most complex to simple.  Our more than 20 years of expertise and strong team gives us the capability to look beyond the immediate service or repair to uncover potential long-term savings, energy efficiency, and the best solutions for the life of your building.

    SystemAire Legacy

    SystemAire, Inc. was incorporated by founder Phillip R. Sams in December 1966. Since that time, the company concentrated on the design/build commercial and industrial HVAC market.  SystemAire’s Service team is made up of a veteran group of engineers, technicians and controls experts who will be joining Wiegmann Associates.  The technicians will continue to work closely with the clients they have served for years.



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    Schedule Service: (314) 739-8310

    24 Hour Emergency Service: (636) 757-2000