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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We used GPR scanning to ensure safety in 100 core drilling locations

Ground penetrating radar to find rebar, post tension cables, and conduit
Penhall went to Monterey, CA to scan 100 different locations in preparation for 5 1/2″ cores. The locations for scan were both on 6″ concrete pan deck and 6″ walls.

Locate all obstructions including rebar, post tension cable, and conduit within concrete slab

marking up findings after scanning concrete
At a location in Santa Cruz, CA, we checked for obstructions, such as post tension cables, rebar, and conduit, at three locations in preparation for 6 1/2″ cores through a 7″ concrete wall in Santa Cruz, CA.

We find and mark the rebar after performing concrete scanning

Locating Post tension cable, rebar and conduit using ground penetrating radar
Another project in Sunnyvale, CA required us to locate post tension cables in twelve 1′ x1′ areas.