concrete scanning Services

C&M Subsurface specializes in advanced concrete scanning services, including rebar locating, post-tensioned cable locating, and void detection. 

C&M Subsurface
Steel Craft Builders

Before you drill, cut, or core, know what’s beneath the surface. C&M Subsurface provides concrete scanning services to locate rebar, post-tension cables, voids, and other embedded features. Using advanced GPR and subsurface imaging technology, we deliver clear, real-time data that helps prevent costly mistakes and maintain structural safety.

Rebar location

We use GPR to locate rebar within concrete, providing depth, spacing, and layout details for safe and efficient drilling or cutting.

C&M Subsurface

Post-Tensioned Cable Detection

Using GPR, we identify and map post-tension cables within concrete to prevent damage and ensure structural safety during work.

C&M Subsurface

Concrete Thickness

We measure concrete slab thickness using GPR to support safe core drilling, structural assessments, and renovation planning.

C&M Subsurface

Void Detection

We detect and map voids beneath or within concrete to prevent structural issues, costly repairs, and project delays.

C&M Subsurface

Shallow Utilities

We locate shallow utilities near the surface with GPR to prevent strikes and support safe excavation and site work.

C&M Subsurface

Conduit

We locate electrical and communication conduits in or below concrete using GPR to avoid costly hits and rework.

C&M Subsurface
Steel Craft Builders

Visualize Your Scan in 3D

C&M Subsurface

Detailed 3D Imaging

We create high-quality 3D subsurface models of concrete structures using advanced imaging technology, capturing accurate depth and layout information.

C&M Subsurface

Smarter Project Planning

Our 3D data helps identify hidden reinforcements, track structural changes, and plan renovations or repairs with confidence and efficiency.

Steel Craft Builders

Tailored Deliverables

We deliver clear, precise visual records that support construction, maintenance, and restoration work across every stage of your project.

Our expertise supports a wide range of industries, delivering safety, accuracy, and efficiency on every project.

OUR PROCESS

Steel Craft Builders
Steel Craft Builders

At C&M Subsurface, our concrete scanning process is designed to be straightforward and dependable. From scheduling to final reporting, every step ensures clear results that help you plan and work safely without unnecessary delays or surprises.

1

request a quote

Share your project details with us, and we’ll provide a clear proposal outlining scope, timeline, and pricing.

2

Approve and Schedule

Once approved, we’ll coordinate site access and schedule the scan at a time that fits your project timeline.

3

Site Preparation

Our team reviews the area to ensure safe, efficient access and identifies key locations for scanning.

4

Field Scanning

We use advanced GPR technology to scan concrete surfaces and identify rebar, post-tension cables, conduits, and voids.

5

Data Review

Collected data is analyzed and cross-checked to verify findings and ensure accuracy before reporting.

6

Reporting and Marking

We provide on-site markings or detailed reports as requested, documenting all findings for safe cutting, drilling, or coring.

Our Difference in Concrete Scanning

At C&M Subsurface, we recognize the paramount importance of accurate and thorough concrete scanning. Our state-of-the-art equipment, including ground-penetrating radar (GPR), advanced electromagnetic scanning systems, and 3D imaging technology, ensures precise and comprehensive assessments of concrete structures. Our team of experienced technicians leverages these tools to accurately locate concrete rebar, post-tensioned cables, and to detect and map out voids within the concrete.

Frequently asked questions

How deep can you scan concrete?

Depth varies depending on slab thickness, material composition, and site conditions. Most scans reach depths of 18 to 24 inches, with deeper penetration possible in favorable conditions.

What technology do you use for concrete scanning?

We use advanced Ground Penetrating Radar (GPR) to locate rebar, post-tension cables, conduits, and voids within concrete. This non-invasive method provides accurate, real-time subsurface data.

Can you scan through concrete with rebar or mesh?

Yes. GPR can detect rebar, post-tension cables, and mesh within concrete. However, dense reinforcement or high moisture levels may reduce scan depth and image clarity.

What can you locate in concrete?

We can identify rebar, post-tension cables, electrical conduits, communication lines, voids, and variations in slab thickness.

Do you provide markings or reports?

Yes. We offer on-site markings, digital reports, or both—depending on your project requirements. Reports can include images, findings, and depth information.

How accurate are the scan results?

When performed under normal conditions, GPR accuracy is typically within ±½ inch of the target depth. Environmental and material factors may affect precision, which we account for during data interpretation.

Can scanning prevent structural damage?

Yes. Scanning before drilling, cutting, or coring identifies embedded features and prevents strikes that could compromise the structure or cause costly repairs.

How long does a concrete scan take?

Most scans can be completed within a few hours, depending on the size and complexity of the area. Larger or heavily reinforced structures may require more time for data collection and analysis.

What types of projects need concrete scanning?

Concrete scanning is recommended for renovations, core drilling, trenching, anchor installations, and any project where the internal composition of concrete must be verified before work begins.

Can you scan vertical surfaces or walls?

Yes. Our GPR systems can scan horizontal and vertical concrete surfaces, including walls, ceilings, and columns.