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Hoffmann Brothers has on staff Mechanical Engineers who can help design and implement any type of Mechanical or HVAC system installation for your St Louis area business. Our Engineers have helped design everything from clean rooms and dust control systems for intricate production processes, to reworking ductwork and HVAC systems to provide commercial spaces with adequate airflow and energy savings. There is not job to big or too small for our engineers. To request a bid with engineers fill out our online form, or call us at 314-664-3011.


Design Build Projects St Louis
Our Engineers have been using their expertise and design skills to create and implement some of the most complex Mechanical systems. Not just any contractor can design these types of systems. You want to make sure that the contractor you hire has experience in creating successful solutions for other area businesses. Here are just some of the design build projects we have completed:


    • Hoffmann Brothers designed and installed four 25-ton roof top units and an exhaust system for Patriot Machine in St Charles along with an exhaust system. Patriot machine makes aircraft parts from titanium. The process creates a tremendous amount of heat and humidity. The walls in the building would run with water causing mold and rusting issues. Hoffmann Brothers installed four 25-ton RTUs with humidity control and an exhaust system to capture the moisture and exhaust it out of the building.
    • Hoffmann Brothers designed and installed a dehumidification system for a Pharmaceutical company in Olivette, MO.  The room that they used this dehumidification system in had to be kept at 15% relative humidity all year long. Hoffmann Brothers used a combination of mechanical refrigeration and desiccant dryers to achieve that level of humidity.


Our Design team is consistent in implementing processes and systems that will benefit your company for the long term. We have been providing design/build services for many St Louis local businesses for years. Some of the St Louis businesses we have worked with on design build projects are GE Healthcare in Olivette, St Peters Catholic Church in Kirkwood, Patriot Machine in St Charles, First Illinois Bank in East St Louis, and H&J Enterprises in High Ridge. To talk to one of our Mechanical Engineers on staff, call us at 314-664-3011 or request a bid through our online form.

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