• Visible cracks, stains, or spalling

• Water ingress or leaks

• Signs of corrosion (rust, delamination, or concrete pop-outs)

• Unexpected movement, deflection, or vibration

• Previous exposure to fire, flooding, or impacts

• Unknown as-built conditions or missing drawings

• Quality control for grouting, injection, or crack repair

• Structures nearing or part their expected service life

• Concrete & masonry

• Timber

• Steel

• Soil & bedrock

• Bridges & tunnels

• Buildings & parking structures

• Dams & water infrastructure

• Industrial tanks & pipelines

• Foundations & Piles 

• Soils & Bedrock

• Post-Tensioning & PCCP: diagnostics for high-tension steel and pressure pipe.  

• Forensic Verification: Mapping as-built reinforcement and uncovering unknown foundation details.

• Integrity Testing: Pile length determination, anchor bolt testing, and epoxy injection verification.

• Site Characterization: Utility mapping and geophysical subsurface exploration.

• Quality assurance and troubleshooting for new construction and repair

Acoustic & Ultrasonic Diagnostics

• Impact Echo (IE) & Ultrasonic Pulse Velocity (UPV): Proprietary systems for simultaneous data collection to assess delamination, cracking and in-situ strength.

• Pulse Echo & Sonic Reflection: Specialized testing for pile length verification and deep foundation integrity.

• Ultrasonic Testing (UT): Precision measurement of steel thickness and anchor bolt integrity.

Electromagnetic Imaging

• Ground Penetrating Radar (GPR): High-resolution mapping of reinforcement, tendons, and utilities at both structural and geophysical depths.

Forensic Visualization

• Tomographic Imaging & Defect Mapping: Advanced data processing to display structural anomalies and voids.

Electrochemical Analysis

• Half-Cell Potential & Linear Polarization Resistance (LPR): Quantitative diagnostics to identify active corrosion zones and calculate corrosion rates.

Seismic Geophysics

• Seismic Refraction & MASW: Multi-channel Analysis of Surface Waves to characterize soil stratigraphy, bedrock depth, and seismic site class.

In most cases, yes. One of the key advantages of NDT is that it can often be performed while the structure remains in service, minimizing disruption to operations.

NDT results are used to:

1. Support condition assessments

2. Identify deterioration mechanisms

3. Inform repair and rehabilitation strategies

4. Reduce uncertainty where documentation is limited

5. Support asset management and lifecycle planning

NDT provides highly reliable data when performed and interpreted by experienced professionals.

However, results are influenced by factors such as material variability, moisture conditions, and reinforcement congestion. For this reason, multiple methods are often used together to validate findings.

Many forms of deterioration, including corrosion of embedded steel, occur below the surface and are not visible during routine inspections. NDT provides the data needed to identify these hidden issues early, helping owners and engineers make informed decisions about maintenance, repair, and long-term performance.

Because NDT is non-destructive, it allows structures to be evaluated without causing damage, preserving structural integrity when no repairs are required.