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Company Certification


Welder can test at our accredited testing facility or at your company with a CWI witness.

Our accredited testing facility is located at:
1947 North Griffith Blvd.
Griffith IN, 46319
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To test a welder at your company location, a CWI must be present and the material can be submitted to our accredited testing facility for processing. We can provide a CWI for your company if needed.


Tests scheduled at Calumet Welding Center are done Monday through Friday at 7am.
Welders must have their own gear.

When scheduling, you need your process, material types, material size, positions, code book of certification, and WPS number.

To schedule, call:
John Koerienek at 219-923-9800
Monday- Friday between 7:00am and 5:00 pm

Advanced notice of a day or more is preferable. Occasionally all of the welding booths are in-use, so please plan ahead.


Typically, results for contractors are received within 1-2 business days.
Certification documents may take between 3-10 business days.

© 2009 Calumet Welding Center. All Rights Reserved.
This institution is regulated by: Office for Career and Technical Schools
10 N. Senate Ave, Suite SE 308 Indianapolis, IN 46204
OCTS@dwd.in.gov | http://www.in.gov/dwd/2731.htm | 317-234-8338 or 317-232-1732