• Twin Cities commercial Welding

    ASME Section IX Certified Welding Services

    KO Mechanical Services operates a certified ASME Section IX welding program for high-pressure piping, process piping systems, and critical mechanical applications throughout the Minneapolis/St. Paul metropolitan area. With over 12 years of experience and Minnesota High-Pressure Piping Contractor License (HC802574), our certified welders deliver code-compliant welding for commercial and industrial projects.

    ASME Section IX certification ensures our welding procedures and welder qualifications meet rigorous testing and documentation requirements for pressure piping systems, boilers, and pressure vessels.

Our Welding Services Include:

  • High-pressure steam and hot water piping systems

  • Process piping for industrial applications

  • Gas distribution piping systems

  • Boiler and pressure vessel connections

  • Commercial building mechanical systems

  • On-site and shop-based welding projects

All welding is performed under our ASME Section IX certified program with documented procedures and qualified welder performance records.

What ASME Section IX Certification Means:

ASME certification is required for pressure piping and vessel welding in Minnesota, demonstrating:

  • Documented and tested welding procedures

  • Qualified welders who passed performance tests

  • Code compliance with state requirements

  • Complete documentation for quality assurance

Licensed for High-Pressure Work:

  • Mechanical Contractor License #MB100229

  • High-Pressure Piping Contractor License #HC802574

  • ASME Section IX Welding Program

Request Certified Welding Services

Other Services

  • Industrial pipes with blue and red valves installed on gravel surface, connected to large metal equipment and supported by metal frames.

    Pipe Fabrication

    KO Mechanical offers precision pipe fabrication services designed to meet exacting project specifications.

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  • A manufacturing process with a machine welding or cutting metal, producing sparks and smoke.

    Welding

    Our certified welders deliver high-quality welding services, including ASME Section IX compliant welding for high-pressure and process piping systems.

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  • Industrial boiler room with white, yellow, and red pipes connected to a large black boiler unit.

    Installation of Gas Piping

    We provide expert installation services for steam, hot and cold water, process, and gas piping systems.

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  • Industrial boiler room with two large black boilers, connected to blue control panels and yellow pipelines. White pipes overhead labeled 'HOT WATER SUPPLY' and 'COLD WATER INLET' run across the ceiling.

    Mechanical Room Modifications

    From upgrading existing systems to complete mechanical room redesigns, we excel in optimizing spaces for better functionality.

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  • An industrial boiler system with pipes, valves, and machinery in a mechanical room.

    Boiler Installations and Replacements

    Our specialists handle the installation and replacement of hot water boilers and all associated components.

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  • Construction site with large industrial pipes and scaffolding, worker in safety gear, and bright sunlight.

    Pump Installations

    We provide professional pump installation services, ensuring reliable performance for industrial and commercial applications.

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Have Questions for KO Mechanical?

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