Fabrication Services

One Industrial Services, LLC (OIS) has provided high-quality metal fabrication to the refining, petrochemical, and power markets for more than 50 years. We are an industry leader in retrofitting, upgrading, fabricating, and installing boilers, furnaces, and waste heat recovery systems. Our workforce has a reputation for excellence and has consistently achieved weld acceptance rates of 98 percent or greater.

OIS has the in-depth knowledge and experience necessary to deliver exceptional results. From planning and scheduling through execution and installation, we are the single point of accountability for fabrication activities, which can potentially reduce the schedule and lower the cost.

With two fabrication facilities, experienced specialty welders, certified weld inspectors, and over 1,500 American Society of Mechanical Engineers (ASME)-qualified welding procedures, OIS is capable of meeting clients' fabrication needs. We fabricate to any configuration and material, including inconel, chrome, and alloys.

Our fabrication shop is certified to perform ASME Code work to Sections I, VIII, and B31.1 and repairs per National Board of Boiler and Pressure Vessel Inspectors. Our Quality Assurance and Quality Control capabilities include radiography, ultrasonic inspection, mag particle and dye penetrant inspection, pressure testing (water/air), positive material identification, and quality control documentation supervised by our Certified Welding Inspectors, Level II Inspectors and Level III Inspectors.



Pipe Spools

Sizes range from one half to 72 inches in diameter, fabricated to any configuration and length. Material grades and qualified welding procedures include:

Structural Components
Specialty Components