We know this business

Loenbro was founded on high-quality welding skills in 1998, and ever since then, we’ve been fabricating components for clients who depend on our ability to deliver the best products available. Our welders are API and ASME certified, and certified by the Canadian Welding Board. Loenbro’s piping prefabrication capabilities include:
  • Fabrication of Carbon/Alloy Piping Spools, and Modular Skid Piping

  • High Purity and Sanitary Welding Capabilities

  • Fabrication of Vessels

  • GTAW, GMAW, FCAW, SMAW, Orbital Welding Capabilities

  • Fabrication of Lact Units

  • Fabrication of Compressor Station Components

  • Heat Treating Services — Both In-house and On-site Capabilities

  • Fabrication of Gas Plant Components

  • Prefabrication of Pipe Racks and Supporting Structures

  • Fabrication of Steel Framing for Multiple Types of Structures and Buildings

  • Fabrication of Custom or Specialty Components

worker welding


Loenbro is one of the few fabricators in the Rocky Mountain region that has received a U-stamp, R-Stamp, and PP-Stamp certification. We manufacture vessels and tanks of all sizes and ship them to meet your deadlines. Our pressure vessels are thoroughly inspected to ensure you receive the best results. Our certified welders and skilled assemblers deliver excellence with each vessel produced.


If your pipeline project requires pig launchers and receivers, you can count on Loenbro for quality fabrication and on-time delivery. Our shops are strategically located for easy delivery to oilfields across the Rocky Mountain region and beyond.
  • Complete semi-automated and manual projects

  • Operate at our well-equipped welding facilities

  • Can come to you for on-site fabrication

  • Are committed to meeting the needs of our clients 24/7


At our regional shops, we fabricate steel products of all types to meet a variety of industrial needs. We always control and monitor every aspect of the process, ensuring precision and quality. In our state-of-the-art shop in Great Falls, we fabricate at 20 jib crane-equipped welding stations. The facility, which opened in 2015, is climate-controlled and designed to operate 24/7. We perform our fabrication services in the following facilities:
  • Great Falls, MT – 30,000 sq. ft

  • Billings, MT – 7,000 sq. ft

  • Gillette, WY – 10,000 sq. ft

  • Casper, WY – 24,000 sq. ft

  • Kermit, TX – 8,000 sq. ft

Loenbro Fabrication Facility

  • 10 Ton cranes with coverage for entire building and welding bays (2)

  • 1 Ton gorbel gantry cranes for every welding station with room for expansion (20)

  • Multiple miller pipe worx 400 welding machines

  • Welding positioners, multiple sizes

  • Segregated welding areas for carbon and stainless steel

  • Thermo full building smoke evacuation system

  • Haas VF3YT vertical mill (1)

  • 20” Hydraulic horizontal band saw (1)

  • Scotchman 95/140 multi punch/shear (1)

  • 7 x 13 Post weld heat treating oven (1)

  • 5 x 10 Plasma table (1)

  • 12,000 Forklifts extendable booms (2)

  • Fully staffed QA/QC department, AWS CWI’s, ASNT-SNT-TC-1A VTII

  • Onsite hydro testing capabilities, B31.1 & B31.3

  • 40 X 80 Paint booth

  • Industrial painting and coating of epoxy, urethane, and enamels

  • Industrial blasting of most medias

  • 10 Acres of laydown area for project staging and completed work