Customer Testimonials:

"They are professionals who can custom design and install systems to work around obstacles."
- Dale Grothe, distribution planner G/W, Superior Water Light and Power

Oil & Gas Industry Service

United Piping Inc (UPI) provides full service, quality, general and mechanical contracting to the oil and gas industry. We offer engineering and technical services for pipeline, process piping, boiler and vessel piping, distribution, transmission, piping maintenance and refinery industries. UPI services include:

  • Pipe Fabrication:
    Skilled workers, state-of-the-art equipment, and our new facility means UPI offers our small and large clients quality, innovative, and accessible fabrication options.
  • Pipeline Station Construction:
    UPI fabricates complex systems at our facility in Duluth, MN, as well as on-site. Highly skilled pipefitters and mechanics work together with engineers and inspectors to ensure quality production.
  • Maintenance:
    Our skilled OQ qualified personnel routinely service live equipment and can provide everything from layout to trouble-shooting, general maintenance and specialty work.
  • Special Project Services:
    United Piping offers special project services including pipeline sleeving and recoating, marine repair and marsh work, lube oil system flushing and filtering, right-of-way maintenance and clearing, as well as utility installation.

Contact us today - We'd like to give you a proposal on your next project.

Pipe Fabrication

United Piping, Inc.'s experienced pipefitters have also developed highly-specialized fabrication techniques. Our processes include:…
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Facility Construction

Our experienced professionals will help you draft and engineer an efficient system, solve operational problems, and install your new system ready for operation.
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Maintenance & Special Services

Operating facilities need on-going maintenance to ensure integrity and maximize production.
» Read More: Maintenance, Special Services

United Piping, Inc. is a subsidiary of APi Group, Inc.