

35+ years of
EXPERIENCE
est.1990
From Concept to Completion, let us turn your Vision into Reality

What we
can do for you
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New Build
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Commercial
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Remodel
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Renovation
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Framing
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Siding
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Roofing
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Decks
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Trim
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Kitchens
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Fencing
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Painting
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Storm & Water Damage
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Demolition & Hauling
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Drywall Repair
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Bathroom Remodels
Real Estate updates & repairs to get your house to market quickly
Meet Tim Ortmann
Owner & Construction Coordinator, OSC Constructors Inc.
Tim Ortmann brings decades of hands-on experience and leadership to OSC Constructors Inc., specializing in the seamless execution of residential and commercial construction projects. From custom home builds to complex remodels, Tim expertly manages every phase of the process with precision and care.
As a trusted coordinator, Tim selects and oversees top-tier professionals, ensuring that each project is completed on time, within budget, and to the highest standards. His meticulous attention to detail and unwavering commitment to quality are evident in every build.
With a reputation for excellence and a deep understanding of the industry, Tim is equipped to tackle any challenge—no matter the scale or complexity. When you partner with OSC Constructors, you're not just hiring a contractor; you're gaining a dedicated expert who will bring your vision to life with integrity and expertise.
Let OSC Constructors Inc. turn your next big idea into reality.




Carpentry Contractor serving St. Louis MO and Counties of Warren, Franklin, Ladue, Frontenac, Town & Country & Maryland Heights.