Commitment to Safety • Reliable Results
Responsive Resources • Established Expertise

Penhall Technologies can help you locate rebar, pipes, post and pre tension cables, conduits and many other subsurface hazards that may be hidden in concrete. Our expertly trained analysts can also detect voids within or underneath concrete slabs. As a safety leader in the industry, contractors, engineers, and government agencies have come to trust Penhall first for safe and precise scanning services.

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Scanning ensures safety when performing flat saw cutting into concrete

Safe to flat saw after concrete scanning for obstructionsAt a job site in Honolulu, HI, Penhall was asked to scan for any obstructions prior to flat sawing. The concrete that was scanned was 5400 linear feet, where we were able to find and mark all obstructions to ensure safety when cutting.

Ground penetrating radar used to locate obstruction before core drilling

GPR Scanning to locate post tension cable before core drillingWhen Penhall was tasked to scan for another client in Honolulu, HI, we used ground penetrating radar in 6 different areas of the location. This was to ensure that it was safe to core drill 6″ holes into the 12″ thick concrete slab.

Finding rebar and identifying other hazards in suspended concrete slab

Finding rebar and identifying hazards with GPR concrete scanningAt yet another location in Honolulu, HI, ground penetrating radar was used to identify hazards within a 6″ suspended concrete slab. After scanning, the client was now safe to have an 8″ diameter core drill performed.

Concrete scanning detects post tension cables

Concrete scanning to find post tension cable and rebar in slabWe recently worked with another client in Honolulu, where we did concrete scanning on 120 different areas at a single location. Penhall was able to detect post tension cable prior to core drilling as to avoid risking any accidents.

We mark the rebar and other hazards after scanning

Marking rebar and other hazards with concrete scanningIn order to prepare for some sawing, Penhall inspected 530 square feet of concrete using GPR scanning. We were able to locate any obstructions so that the area was good to cut safely.