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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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I can confirm this is a private locate. For all public locates please contact 811.

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To better help you with your request, could you kindly provide the following information:

What are we scanning? Slab on grade, suspended slab, etc.

What are we scanning for? Ex. rebar, tension cables, conduits, etc.

What is the size of the area(s) that need to be scanned? How many areas?

What is the thickness of the slab?

What is the scanning in preparation for?

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What is the surface that we are performing the locate on? Ex. Ground/Dirt, asphalt, concrete, indoor/outdoor, etc.

What is the size of the area that needs to be scanned in square feet or linear feet?

How many scan locations?

What are we locating? Water, gas, electrical, sewer, etc.

How many utilities are running through the proposed scan area?

Do we have access to meters or utility boxes?

What is the locating in preparation for?

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Once you submit this form, a Penhall Company representative will contact you within 24 hours. Thank you for the opportunity to earn your business!


Columbia Concrete Scanning Projects that Penhall Technologies has Worked On

Scan elevated concrete slab to find post tension cables and conduit

determine obstructions within concrete slab using GPR scanningPenhall Technologies was asked to perform concrete scanning at a location in Columbia. The job consisted of three areas on the 10th floor of a building. Once the analysts arrived on site, the client mentioned that scanning was necessary for his project to avoid hitting any post tension cable or conduit when core drilling. After scanning, the client had the necessary information to proceed with his core drilling job in a safe and accurate manner.

GPR scanning used to locate embedded objects before remodeling

Scan concrete at private residence before remodelingPenhall Technologies was recently hired for a remodeling project. Our GPR Analysts were asked to scan, locate, and mark three areas for any post-tension cable, rebar, or conduit in a concrete wall. The client wanted scanning done before wall sawing a door opening for his renovation. Always choose to scan first to minimize safety and financial costs in your projects.

Ground penetrating radar used throughout a building to find steel reinforcements within concrete slab

scanning concrete for steel reinforcements within slabA Greenville customer hired Penhall Technologies to scan 12 locations on the first and second floor of a building.  This was done prior to core drilling to make certain that it was safe to drill into concrete and that any obstructions were avoided to secure the integrity of the concrete slab.

Use GPR scanning to locate hazards before coring

Penhall Technologies was called out by an electrical company in Columbia, our analyst scanned 200 4×12” areas using a GSSI Mini XT unit for core drilling in a new hotel, on multiple floors. Penhall Technologies was asked to locate rebar and PT cables in coring locations. We scanned a 2’x2’ area around each core location expanding the scan area as needed to confirm our findings. We clearly marked out rebar in black wax crayon and PT cables and subsurface hazards with red. The safe areas for coring were clearly outlined in blue crayon and then clear coated to preserve markings. All locations were accurate and the coring was completed without incident.