Since 1989 We’ve provided St. Louis and Central Missouri with the best service in custom steel fabrication for HVAC applications.

Tri State Mechanical is a family-owned and operated mechanical HVAC contractor as well as a custom steel fabrication shop. Most common types of metals are fabricated within our well-equipped shop or on site which means you save.

We have the ability to work within varying requirements from standard installations to closely controlled ventilation systems as well as exhaust, air balancing and fabrication needs.

  • Welded Steel
  • Duct Work / Duct Systems
  • Sheet Metal Fabrication
  • Exhaust Hoods
  • Ventilation (fume, chemical, dust, etc.)
  • Commercial Kitchens
  • Complete HVAC Systems

Our experienced sales and engineering staff design and update complete environmental systems for commercial, industrial, and residential buildings. Our technicians adhere to the voluntary technical standards and manuals developed by SMACNA contractors, which have found worldwide acceptance by the construction community.

If you’re in the market for a commercial kitchen hood, ventilation system or custom fabrication, call us today knowing you will be working with a company that offers the highest in quality service and customer service.