Welcome to Collar Doctor^® Inspection Service LLC.

Collar Doctor^® Inspection Service, LLC has a proven record of excellence and is committed to complete customer satisfaction. Conveniently located in East Texas, CDIS is available 24 hours a day, 7 days a week to meet all your inspection needs.  We can be reached at 903-987-1037.

Call the experts at Collar Doctor^® Inspection Service LLC at 903-522-1688 and you'll be glad you did. We have many years of experience in drill collar, fishing tool, and thru tubing inspection. We work hard to make sure the job is done right while saving you time, money, and aggravation. We'll be there whenever you need us.