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.

Get a free quote today!

Where is the job located?

(*) City

(*) State

(*) Zip Code

What services can we assist you with?

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

Other Service

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?

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

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?

Contact Information

(*) First Name

(*) LastName


(*) Email

(*) Phone


What is the best way to reach you?


Other comments or project details?

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

Locate electrical conduit through under side of a concrete ceiling

scanning ceiling under side of concrete for electrical conduitA client in Dallas, TX requested for Penhall to scan nine 3′ x3′ areas. We used ground penetrating radar to locate electrical conduit along a ceiling of the building.

Concrete scanning to locate post tension cable

Concrete scanning to find and locate post tension cablePenhall performed a concrete scan of 3 areas for openings consisting of measurements of 8′ x 8′ x 8”, 10′ x 20′, and 10’x 25′ x 8″. Additionally, a 5′ x 5′ x 6″ thick area on a gym floor was scanned to see if the pattern on the floor was post-tension cable in Fort Worth, TX.

Ground penetrating radar used to locate conduit in concrete slab

GPR scanning to locate and mark conduit in concrete slabThis project had Penhall travel up to Pryor, OK in a request to perform several scans. We used GPR scanning to thoroughly locate and mark conduit on a concrete slab.