Address & Contact

Our Address

4500 Fyler Ave, St. Louis, MO 63116


38.59857785, -90.267079913629


CNJ Mechanical Contractors, LLC is a mechanical contractor located and servicing St. Louis, Missouri region.

CNJ Mechanical Contractors, LLC is an MBE/WBE certified mechanical contracting firm specializing in industrial and commercial projects with an emphasis on mechanical installations, HVAC, process piping, fabrication service, and preventative maintenance.

2018 MOKAN Emerging Business of the Year Award

Christine Michel, President – Michel also owns First Source Payments

CNJ Mechanical Contractors, LLC Services:

  • In House/Custom Fabrication
  • Power & Process Piping
  • HVAC, Backflow Testing
  • High Purity Stainless
  • Refrigeration Piping and Heat Transfer
  • Gas and Distribution Piping Systems
  • AWS Code Certified Welding
  • Welding of Austenitic Stainless-Steel Tubing
  • Pipe Systems for Medical Gasses
  • Custom Skids/Modules (contains all the valves, gauges, piping, and flanges that you need to connect your system)

CNJ Mechanical Contractors, LLC Certifications, License, and Codes

  • Special Certifications: MBE/WBE Certified State of Missouri, and St. Louis Airport Authority
  • Dun & Bradstreet (DUNS) 080484423
  • NAICS codes 238220 and 332996
  • Master Pipefitter License
  • Mechanical License St. Louis City/County
  • Backflow License
  • Medical Gas, LP Gas
  • OSHA 30

CNJ Mechanical Contractors, LLC Clients include:

  • State of Missouri
  • Washington University School of Medicine
  • MO Veterans Home
  • Hof Construction
  • RF Meeh
  • SMCI
  • Mehlville School District
  • Rockwood School District
  • Andy’s Seasoning
  • MLS Soccer Stadium
  • Fed Ex



Leave a Review

Publishing ...
Your rating has been successfully sent
Please fill out all fields
Captcha check failed