Industrial Prefabrication

Industrial Prefabrication

Expanding our industrial prefabrication techniques to work smarter, faster and safer.

To meet the demands of the greater Northwest Indiana and Joliet industrial corridors, AMS has strategically located its industrial fabrication facility in East Chicago, IN. This facility, comprising 60,000 sqft of conditioned fabrication space, includes additional adjacent buildings for storage, lay down, prep, and painting (special coatings) as required. Moreover, complementing this facility are the corporate facilities located in Woodridge, IL, primarily serving our industrial prefabrication, commercial piping, plumbing, and sheet metal fabrication needs. Together, these facilities provide a total of 160,000 square feet of qualified fabrication space to better serve our clients and meet all of our corporate fabrication requirements. Furthermore, each facility operates under the U.A. National Pipe Fabrication agreement and fully utilizes blended crews, offering significant cost and scheduling value to project delivery.

What We Offer

AMS maintains full-time in-house QA/QC management to provide comprehensive document control for each project. In this process, we ensure welder testing and certification, material test reports, procurement documentation, and weld map traceability for real-time project documentation.

Our standards and techniques encompass SMAW, GMAW, FCAW, GTAW, and client-specific requirements. Additionally, we offer in-house services such as engineering, piping design, scheduling, and isometric/spool drawing verification.

Industrial Prefabrication

Facility Highlights

  • Two 30-Ton Overhead Cranes
  • 12 Temperature Controlled Hydrostatic Testing Stations
  • Weld Positioners up to 42”
  • Welder Testing Stations
  • Segregated & Secure Welding Rod Storage
  • Segregated Area for Non-ferrous Fabrication
  • Positive Material Identification
  • Oxygen Piping Clean Room Capabilities
  • Rail Spur Access

Quality Assurance Programs

ISO Based Quality Management System (Non-Accredited)
Client/Project Specific Program Development

ASME Accreditation
“A” (Certificate No. 55,678)
“PP” (Certificate No. 31,755)
“U” (Certificate No. 32,843)
NBIC Accreditation
“R” (Certificate No. 5525)
Note: These stamps are held at the corporate level.


  • Boiler construction and installation
  • Stack and ductwork repairs and replacements
  • Economizer repairs
  • Refractory removal and replacement
  • Tube repair and replacement
  • Manway and hand hole replacement
  • General maintenance


  • Petrochemical
  • Heavy industrial manufacturing
  • Utility and power generation