Specialty Services
Two coworkers wearing safety gear work at a pipeline facility construction site.

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Headquarters

United Piping Inc.

4510 Airport Road
Duluth, MN 55811
Phone: 218-727-7676

Established: 1997  |  Acquired: 2009

United Piping Inc. (UPI) is a general contractor specializing in the construction of new and modification of existing facilities for the oil and gas industry. Our partner clients choose UPI because we are committed to providing safe, reliable and cost-effective solutions.

At UPI, we have built a solid reputation for our focus on safety, protecting the environment, quality craftsmanship and meeting project schedules. We consistently complete a wide range of pipeline projects, large and small, all the while minimizing our environmental impact and maximizing employee safety. We continually strive to expand our business in markets that continue our legacy while maintaining our strong company culture.

In our 25,000-square-foot facility, we fabricate high-yield carbon pipe for our self-performed projects as well as stand-alone fabrication projects. Since our founding, we've built an outstanding reputation for innovative, uncompromising fabrication work. We've continued our dedication to high-quality performance in constructing oil and gas facilities, performing on-site installations of complex piping systems, and excelling in integrity maintenance projects.

We have equipment and capabilities for swamp/marsh and marine excavation, as well as hydro-excavation services. We have a custom-built, one-of-a-kind truck-mounted lube oil flushing and filtering machine to perform lube oil flushing services for multimillion-dollar gas compression turbine engines. We're experts in pipeline right-of-way restoration. We help maintain pipeline longevity by designing and installing the latest technology in cathodic protection systems. We provide large-bore horizontal directional drilling where traditional trenching and excavation methods are not possible. UPI also offers other special project services, including pipeline sleeving and recoating, and right-of-way maintenance and clearing.

As a leading oil and gas construction contractor, we focus on safety and quality to ensure the integrity of every project we undertake. We offer a variety of construction and maintenance services, including:

  • Pipeline Facility Construction
  • Pipeline and Facility Maintenance
  • Shop Fabrication
  • Horizontal Directional Drilling
  • Hydrostatic Testing
  • Access Services
  • Cathodic Protection
  • Blasting / Coating / Painting

No matter the size or complexity of the project, UPI has the staff, experience and equipment necessary for the job. UPI has excelled for more than two decades, and has outstanding core values and an uncompromising drive to be an industry leader.

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