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!

Locating and marking rebar after scanning concrete flooring

locate rebar withing concrete flooring
For this project, Penhall completed a concrete scanning request in Arvada, CO. We were tasked to look for obstructions, such as rebar, post tension cables, or conduit, with a 6″ slab on grade. The total area that was scanned measured 1,100 square feet.

Concrete scanning ensures safety when cutting and coring

scan the concrete before cutting and coring
We recently worked with a client located in Denver, CO requesting ground penetrating radar. Our GPR analysts performed concrete scanning in approximately 200 different locations on this job.

Find rebar and conduit within a concrete wall

Scanning a concrete wall to avoid hazards before core drilling
Before coring, it is highly recommended that one scans concrete for hazards. This is what was requested of Penhall for a client in Golden, CO. We scanned a 12″ concrete wall at 2 separate locations.

Ensure there are no obstructions in the concrete before cutting to install anchors

Scanning for concrete support systems for installation of anchors
At a location in Wellington, CO, Penhall used ground penetrating radar to scan for obstructions. The obstructions that we were looking for were concrete support systems. The scanning in 8 different locations were necessary for the installation of anchors.

Ground penetrating radar used to locate rebar, post tension cable, and conduit in a concrete slab

Find what is within concrete using ground penetrating radar
We traveled to Aurora, CO, where we used GPR scanning to look for any obstructions in an area of 138 square feet. We found rebar, conduit, and utilities on this 6″ thick concrete slab.