303rd Engineering Group

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1935 Arsenal St Ste 201
Saint Louis, MO 63118
+1 (314) 261-4483
http://303engineering.com

303rd Engineering Group is a St. Louis-based professional engineering firm specializing in mechanical HVAC, electrical, and plumbing design. With over 30 years of experience, founder Charles K. Fiedler has led the company to complete over 400 successful projects, including high-profile jobs such as the Naval Special Weapons facility in Crane, Indiana and the Cancer Treatment Center in Swansea, Illinois.

Offering services to both public and private sector clients, the 303rd Engineering Group has worked on a diverse range of project types, including government, healthcare, commercial, industrial, residential, and institutional. Their expertise has been sought after by architects, design-build contractors, and government agencies, making them a reliable choice for projects of any size or scope throughout Missouri and Illinois.

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