ST LOUIS, MO – Wiegmann Associates has begun work on the $8 million renovations at the St. Louis VA Medical Center-Jefferson Barracks to replace outdated heating and cooling systems. Wiegmann Associates is the mechanical contractor and Trine/Poettker joint venture is the general contractor.

The plan/spec project involves removing the 50-year-old HVAC systems in Buildings 1, 51 and 52 and installing new, more energy-efficient equipment as well as new ductwork, piping and insulation.

Building 1 houses the VA’s patient services, administrative offices and various medical clinics. Building 51 is used for mental health services and Building 52 features a chiropractic clinic as well as the spinal cord injury care and pain rehabilitation center.

Wiegmann also is installing the HVAC system to serve a new rehabilitation facility, which is currently under construction and scheduled to complete in the Spring of 2020.

Wiegmann previously installed the heating and cooling systems in the 67,000-square-foot Jefferson Barracks VA Engineering Warehouse. Poettker Construction was the general contractor for that project, which completed in 2018.


Wiegmann Associates is a St. Louis-based mechanical contractor 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, refrigeration systems and automation controls for clients in a wide range of industries, including senior living, food and beverage distribution, warehouse, healthcare, commercial and industrial. 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 or call (636) 940-1056.

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