Certifications, Licenses & Credentials
Fully Licensed, Certified & Qualified to Serve Your Mechanical Contracting Needs
ASME Section IX Welding Program
ASME Section IX is the American Society of Mechanical Engineers' qualification standard for welding and brazing procedures used in pressure vessels, boilers, and piping systems. This certification program requires documented welding procedures (WPS - Welding Procedure Specifications) and qualified welders who have demonstrated their ability to produce quality welds that meet stringent testing requirements.
Mechanical Contractor License #MB100229
The Minnesota Mechanical Contractor License is the comprehensive license for mechanical contracting work throughout Minnesota. This license authorizes us to perform commercial and industrial mechanical work
High-Pressure Piping Contractor License #HC802574
The Minnesota High-Pressure Piping Contractor License is a specialized license specifically for contractors working on high-pressure piping systems. This additional licensing demonstrates expertise in pressure piping applications where safety and code compliance are critical.
City of St. Paul License I.D. #20240001693
Our City of St. Paul contractor license covers three specialized categories of mechanical work: Steam fitting, Refrigeration, and Gasburner.
Veteran-Owned Small Business
KO Mechanical Services is proudly veteran-owned, bringing military discipline, attention to detail, and commitment to mission success to every mechanical contracting project. As a veteran-owned small business, we understand the importance of reliability, safety, accountability, integrity, and excellence.