Non-Intrusive Inspections (NII)
Mechanical Integrity Without Shutting Down
We know that keeping assets online while maintaining mechanical integrity is not just a goal; it is a necessity. Our program allows owners and operators to evaluate pressure assets in service while maintaining safety, reliability, and production. This proven approach delivers trusted inspection results at up to 50% less cost than traditional internal inspections.
Our approach reduces or eliminates shutdowns and confined space entry while supporting safer operations, lower risk, and more effective outage planning. With decades of inspection experience and rope access expertise, we deliver a smarter, single-source solution for advanced NDT, inspection, engineering, and industrial access services.
Download our Guide to NII
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- Assets remain safely in operation
- No shutdown or internal entry required
- Lower cost than outage-based inspections
- Enhanced MI & FFS integration through SHIELD
- More complete data than traditional internal inspections
- High-resolution quantitative reporting and 3D mapping
- RBI-driven monitoring until repairs are required
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Our NII program uses Advanced Ultrasonic Testing to identify active damage mechanisms in in-service pressure assets without shutdowns or internal entry. This approach provides greater visibility into asset condition than traditional inspection methods while minimizing operational impact.
Our superior procedures and damage-rating assessment tool deliver reliable, actionable data that supports informed maintenance planning and risk-based decision-making.

Sample AUT data identifying Hydrogen Induced Cracking (HIC), often missed during internal inspections and rarely detected externally unless blistering reaches the I.D. surface.
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- Advanced UT Pulse Echo and C-Scan
- Phased Array UT
- Time of Flight Diffraction (TOFD)
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- Pressure Vessels
- Exchangers, Reactors, & Coke Drums
- Piping
- Tanks
Ready to Get Started?
If you’re exploring how Non-Intrusive Inspection can improve safety, reduce downtime, and extend the life of your assets, we’re here to help. Our specialists work alongside operators to evaluate NII feasibility, build risk-based inspection programs, and deliver results you can trust.
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