Your Trusted Partner In Non-Destructive Testing Services

Precision NDT inspections, leak detection, cleanroom testing, and ASNT-certified training- serving Tennessee with NIST-traceable accuracy.

ASNT-Certified Technicians

SNT-TC-1A Compliant Processes

NIST-Traceable Calibration & Equipment

Local Expertise Across Tennessee

Your Certified NDT Inspection Company in Tennessee

About Us

At Tennessee NDT Services, we offer advanced, code-compliant non-destructive testing services throughout Tennessee and surrounding regions. Backed by decades of hands-on expertise, our certified technicians deliver everything from leak testing and ultrasonic inspections to visual assessments and cleanroom validation—ensuring every component, weld, or facility meets safety and industry standards.
Whether you’re in pharmaceutical, aerospace, biotech, or manufacturing, we bring the tools, training, and technical accuracy to protect your people and products.

Our NDT Inspection &
Testing Services

HEPA Filter Testing

Protect your controlled environments with HEPA filter integrity testing and leak detection. We use DOP testing methods to verify air quality in fume hoods, inline units, and clean zones.

Leak Testing

Our leak testing services include Helium Mass Spectrometer Leak Detection (HMSLD), vacuum decay, and pressure testing—ideal for sealed systems and critical containment units.

Ultrasonic Testing (UT)

Using ultrasonic flaw detection and corrosion thickness measurement tools, our UT services locate internal defects and structural weaknesses in welds and materials.

Magnetic Particle Testing (MT)

Magnetic Particle Testing identifies surface and near-surface flaws in ferromagnetic materials using wet or dry inspection techniques.

Liquid Penetrant Testing (PT)

Our dye penetrant inspections detect cracks, porosity, and discontinuities in non-porous surfaces for accurate quality assurance.

Visual Testing

Our visual testing team performs direct inspections using the unaided eye or magnified optics to identify surface flaws, welding defects, and corrosion damage.

Clean Room Testing

Maintain ISO-class cleanliness with NIST-traceable cleanroom testing. We evaluate particle counts, airflow conditions, and contamination risk to certify sterile environments.

Consulting & Compliance Services

Third-Party NDT Inspection

We provide independent third-party inspections for manufacturers, contractors, and facility owners, including witness testing and code verification across project lifecycles.

About Us

Procedure Review – Level III Consulting

Our ASNT Level III consultants review and develop NDT procedures for SNT-TC-1A, ASME, and AWS code compliance. Ensure your methods meet inspection standards from the ground up.

Free Estimates

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Industries We Serve

We serve a diverse range of industries that require accuracy, regulatory compliance, and traceability:

Pharmaceutical & Biopharmaceutical

Aerospace & Defense

Data Centers & Cleanrooms

Energy & Nuclear

Welding & Fabrication Facilities

General Manufacturing

Meet Your Business's Needs with Expert NDT

Get the testing you need done quickly with customized reporting, fully compliant methods and quality staff members.

Free Estimates

Credit-card Accepted

NDT Training Programs

Advance your skills with hands-on and online NDT training programs led by certified instructors. Whether you're new to the field or upgrading your qualifications, we help technicians achieve Level I & II certification with confidence.

Magnetic Particle Testing (MT) - Level I & II

This course emphasizes hands-on techniques, field applications, and industry standards for both ferrous and non-ferrous materials. Master the fundamentals of magnetic particle inspection for locating surface and near-surface discontinuities.

Visual Inspection Testing (VT)

Sharpen your skills in interpreting radiographic films for weld quality, material integrity, and defect evaluation. Learn techniques to help you to recognize subtle indications and meet international film interpretation standards.

Liquid Penetrant Testing (PT) - Level I & II

This course covers inspection techniques, materials, and interpretation skills required for accurate and reliable PT evaluations.

Radiographic Film Interpretation (RTFI)

CERTIFICATIONS

Our focus is on delivering unparalleled quality through the expertise of our qualified personnel, extensively trained to the standards set forth by the American Society for Nondestructive Testing (ASNT).

Reach out and Connect

Schedule an Inspection or Enroll in Training

Your bridge to meaningful communication and personalized assistance, we're here to listen and assist you

Most Asked
questions?

You can enroll in Level I & II courses through our online and in-person programs led by certified instructors.
Tennessee NDT offers HMSLD leak testing and pressure-based methods throughout Tennessee.
We perform certified HEPA filter integrity tests using DOP aerosol methods with NIST-traceable tools.
Our UT inspections include flaw detection, weld testing, and material thickness measurement.
Yes- Tennessee NDT Services is based in Johnson City and proudly serves the entire Tri-Cities region.