NDT Services, Training, Consulting and Calibration

About Us

Premium group inspection and testing group
Quality Testing is now part of Premium Inspection & Testing Group.

For more than two decades, Quality Testing Services, Inc., has earned a reputation as a leader in the Non-destructive Testing (NDT) and Training industry throughout the United States. Centrally located in St. Louis, Missouri, our business has expanded from the mid-west area throughout the entire U.S. with established customers coast to coast.

A message from Scott Zimmer, President

Our dedicated team of ASNT Certified inspectors can perform Visual, Radiographic, Ultrasonic, Phased Array, Eddy-Current, Magnetic Particle, Liquid/Dry Penetrant, Positive Material Identification, Helium Mass Spectrometer Leak Testing, Infrared Thermography, Weld Inspections and Borescope in accordance with NADCAP, NAVSEA, BOEING, ASME, ASTM, AWS, API, ANSI, MIL-STD, ASM, Lear, Cessna, Falcon, Sikorsky or other specifications. As an FAA Approved Repair Station we offer Eddy-Current and other flight critical inspection services.

Our inspection lab is comprised of some of the latest technology associated with advanced NDT, including a large CNC Ultrasonic (UT) Gantry and Immersion Inspection Systems design for high volume inspections. Our Field Services experts can perform in-situ inspections at remote locations, including fabrication shops, machine shops, construction sites, and other manufacturing or service facilities. Wherever the need, our team will respond quickly with reliable, expedient, and cost effective services in a timely professional manner.

Since 1993, Quality Testing Services has built our reputation on a foundation of providing advanced, comprehensive NDT training and consulting. Our diversified full time staff are certified by the American Society for Nondestructive Testing as Level III instructors. Each has been training students and working in industry for over fifteen years. Our courses are designed to provide students training in accordance with SNT-TC-1A, NAS 410, MIL-STD, or CP-189. We offer training at the convenience of your facility or our St. Louis location.

Our A2LA IEC/ISO 17025 Accredited Calibration Lab provides expert calibration support for NDT Test Equipment, Physical Dimensional, Torque, Temperature, Pressure, Balance/Scales, DC/Low Frequency, RF/MW and Light. At Quality Testing Services, our goal is to provide customers with an economical solution for all your NDT, Training and Calibration requirements. Utilizing our NDT services enable our customer’s to determine their equipment’s condition and identify specific faults long before breakdown or even catastrophic failure.