MIG is an industry leading provider of brazed aluminum heat exchanger (BAHX) and Cold Box installation, repair, and maintenance services.  

We are an NBIC “R” Stamped company for Repairs and Alterations both at our shop and in the field.

Our highly trained field service technician teams travel throughout the US, providing a wide range of services, including field-based new installations and relocation; repair and maintenance projects on brazed aluminum heat exchangers, cold boxes, pressure vessels, and piping; planned maintenance support, and emergency response.

MIG is one of the only companies in the U.S. to provide end-to-end field and shop maintenance, testing, and repairs of BAHX heat exchangers—and has earned a reputation for meeting quick response parameters in emergency repair settings.


Field Services

  • Pressure Vessels, BAHX, Cold Boxes - New Installations
  • Commissioning & Startup
  • Retired Equipment Removal
  • Operational Process Controls
  • Pressure Vessels, BAHX, Cold Box Repairs
  • Pressure Vessels, BAHX, Cold Box Modifications
  • Plant Relocations
  • Plant Shutdowns
  • Process Piping, Electrical, Concrete, and Millwright
  • Plant Upgrades
  • Process Analysis and Optimization
  • DCS analysis
  • Oxygen cleaning
  • Nationwide service


Shop Services

  • Welding and Fabrication
  • Oxygen Cleaning
  • Painting & Sand Blasting
  • Pre-Fab of Piping and Steel
  • Cold Box Refurbishing


WPS’s and PQR’s

We maintain multiple WPS’s and PQR’s. Often taken for granted, WSP’s (Welding Procedure Specification) and PQR’s (Procedure Qualification Records) serve as blueprints for performing welds in an efficient, repeatable, and safe manner—that meet with all applicable code requirements and standards.



Our WSP’s and PQR’s are your assurance MIG’s seasoned teams deliver welds to the highest standards that ensure maximum life, facility up-time—and safety—and include the following:

  • Charpy SS
  • Stainless Steel to Carbon Steel
  • Stainless Steel to Stainless Steel
  • Carbon Steel to Carbon Steel
  • Aluminum
  • Monel
  • Inconel


Contact Us: 

MIG is here to serve you and provide the highest quality BAHX, cold box, pressure vessel and piping installation, testing, repair, maintenance, and emergency services.

Please contact us today at:  +1 (317) 870-2400 to discuss your BAHX, cold box, piping, and equipment services needs, or submit your inquiry here.