GPR / Concrete Scanning

Know what’s inside the slab before you cut. Our ground-penetrating radar locates rebar, post-tension cables, conduit, plumbing and voids — so drilling, coring and cutting can be planned around real hazards, not guesswork.
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See Inside the Concrete Without Touching It

Ground-penetrating radar (GPR) is a non-destructive way to map what’s embedded in a concrete slab or wall before any work begins.

We move a radar unit across the surface and read the returns in real time, then mark the location and depth of embedded objects directly on the concrete. No coring test holes, no x-ray shutdowns, no clearing the area — scanning is fast, safe for everyone on site, and done while your crews keep working nearby.

The result is a clear picture of what’s inside, so the next cut, core or anchor can be placed with confidence.

What GPR Scanning Detects

Rebar

Reinforcing steel mapped by location and depth, so cuts and cores avoid the structural grid.

Post-Tension Cables

High-risk tensioned cables located before cutting — a strike here can be dangerous and costly.

Electrical Conduits

Live and empty conduit runs identified to keep crews safe and avoid service interruptions.

Plumbing Lines

Embedded water and drainage lines located before coring for a rough-in or penetration.

Embedded Utilities

Other in-slab services and unknowns flagged so nothing gets hit by surprise.

Voids & Anomalies

Air pockets, honeycombing and slab-thickness changes identified before drilling or anchoring.

Our Scanning Process.

Site Review

We confirm the scan area, access and what you're planning to cut, core or anchor.

Scan the Surface

The GPR unit is moved across the slab or wall, reading embedded objects in real time.

Mark & Report

Locations and depths are marked directly on the concrete, with notes where needed.

Cut With Confidence

Your crew — or ours — proceeds knowing exactly what's inside and where.

Need a Scan Before You Cut? Let's Get on Site.

Send us your site details or drawings and we’ll get a crew out to scan before you cut — usually within one business day.

GPR Scanning Questions

Rebar, post-tension cables, electrical conduit, plumbing lines, other embedded utilities, and voids or anomalies in the concrete. We map their location and approximate depth and mark them on the surface.
No. GPR is completely non-destructive — no test holes, no radiation, no need to clear the area. Your crews can keep working nearby while we scan.
Most scans are completed in a single visit. Timing depends on the area and complexity, but it’s fast enough to fit into a normal work sequence without holding up the job.

Most residential and small commercial scans can be completed within 30–90 minutes. Larger or more complex areas may take longer depending on the size, accessibility and scan requirements.

Yes. We scan, core and cut with one crew, so you don’t have to coordinate multiple subcontractors for a single opening.
We serve Toronto and the Greater Toronto Area, including Mississauga, Etobicoke, Brampton, Oakville, Vaughan, Milton, Burlington, and surrounding areas.