GPR Concrete Scanning is sometimes confused with Concrete X-Ray for applications to locate conduits and other objects in concrete slabs prior to cutting or coring. Concrete scanning is conducted with the use of Ground Penetrating Radar (GPR) equipment. GPR technology uses radio waves that are safe and not gamma rays which are used in concrete x-ray equipment. The radiation from concrete x-ray equipment can be harmful and therefore requires evacuation. Also GPR results are available on site in real time which can reduce the time and cost required for a concrete inspection. If you don't know what is under the surface, drilling or cutting through concrete slabs, walls or ceilings can be dangerous and very costly. Our GPR technicians accurately & quickly locate conduits and rebar in concrete and identify post-tension cables before it's too late. We can also measure concrete thickness and locate voids in concrete and sinkholes below the ground surface. For more information see our Concrete X-Ray vs GPR Comparison.


We have heard from some new clients that they have hit conduits when coring or cutting an area they were told was clear of anomalies by other concrete scanning companies. This is normally the result of an incorrect scan process or an inexperienced GPR technician. Some GPR operators will simply do line scans (every 4"-6") to save time and then try to connect the dots instead of taking the time necessary to create a high resolution 3D grid. To locate rebar the simple line scan process may work some of the time. However, conduits and post tension cables can easily be missed. Although using a 3D grid process (every 2"-4") takes a little longer, this process can save the cost of repairing damaged conduits & post-tension cables and not to mention possible physical harm to the person doing the coring or cutting. Our highly trained GPR Technicians will not expose you to that risk.

"Our primary goal as a GPR service company is to ensure the most accurate results for our clients by using the correct GPR data collection process every time. We believe it's always best to do it right the first time!"


We can also provide a detailed mapped report in addition to scanning and marking the site for targets located in a concrete slab. These reports clearly show the locations and depths of located conduits, rebar and post-tension cables plotted to scale on your site plan. This can save you money down the road if further work in that area is required or used for pre-engineering purposes.

Accurate Concrete Inspection with Ground Penetrating Radar Concrete Imaging instead of Concrete X-Ray by Global GPR Services Inc.