See What's
Inside Your
Slab
Before you drill, cut, or core — get a clearer picture of what may be in there. Advanced GPR scanning to help identify rebar, post-tension cables, conduits, and voids.
What Is
Concrete Scanning?
Ground Penetrating Radar (GPR) uses high-frequency radio waves to penetrate concrete and create a real-time picture of everything embedded within. Scans involve no radiation and can be carried out in occupied spaces with no site evacuation required.
ConcreteX uses enhanced GPR technology that goes beyond standard scanning. In many cases we can interpret through wire mesh, differentiate between conduit types, post-tension cables, and reinforcement — even in dense, congested slabs.
Results are marked directly on the slab surface on the day, with a structured report delivered within 24 hours.
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Project Gallery
What GPR Can Help
Identify Inside Concrete
From PT drape profiles and reinforcement layout to cover measurements and slab depth — GPR gives engineers and builders a clearer picture of what's inside before any work begins.
Why Scan Before
You Drill or Cut?
Hitting a post-tension cable, live conduit, or rebar during drilling isn't just a setback — it's a costly emergency with serious safety and liability implications.
First.
The cost of a scan is a fraction of one repair call-out. Repairing a severed post-tension cable alone can cost tens of thousands of dollars — plus project delays and potential liability.
Scanning before you cut is not optional on a well-run site. It's what separates builders who finish on budget from those who don't.
Book Today — 1300 310 179
How It Works
Simple, fast, and non-destructive. From booking to marked slab in as little as a few hours.
Common
Applications
Core Drilling & Penetrations
Before drilling core holes for services, HVAC, plumbing, or structural modifications — get a clearer picture of what may be in your path.
Anchor Installations
Confirm safe drilling positions for post-installed anchors, chemical anchors, and structural fixings without striking rebar or PT cables.
Fit-Out & Renovation
Commercial and residential fit-outs often require penetrations for partitions, fixtures, and services. Scanning helps reduce the risk of striking embedded objects.
Structural Investigations
When drawings are unavailable or unreliable, GPR scanning provides reinforcement layout, cover data, and PT profiles for engineer review.
Slab Cutting & Sawing
Diamond saw cutting through PT slabs without scanning is an extreme risk. Map all cables and reinforcement before any cutting begins.
Due Diligence & Compliance
Engineers and project managers use pre-scan reports to satisfy WHS obligations and document safe work method statements.
Frequently
Asked
How accurate is GPR concrete scanning?
GPR is accurate for locating embedded objects. Enhanced systems like those used by ConcreteX can resolve object positions to within a few millimetres laterally and within approximately 5–10mm in depth. Accuracy can vary in congested or heavily reinforced slabs, which we'll advise you about on the day.
How thick a slab can you scan through?
Standard GPR scanning is effective up to approximately 300mm depth in typical concrete. Where slab thickness exceeds this, we can scan from both sides where access allows to improve coverage. Depth capability can also be limited by slab density, moisture content, and reinforcement congestion.
How long does a scan take, and when will I get the report?
Scan time depends on area size but most jobs are completed in 1–3 hours on site. All detected objects are marked on the slab before we leave. A structured written report with scan imagery is delivered within 24 hours of the site visit.
Do you service areas outside Sydney?
Yes. ConcreteX services the greater Sydney region and broader NSW. For projects outside the Sydney metro area, travel fees may apply. Contact us to discuss your specific location and we'll confirm availability and pricing.
What format does the scan report come in?
All ConcreteX scanning reports are issued in PDF format and include a summary of findings, annotated scan imagery, detected object types and depths, and any relevant observations or cautions. Reports are structured for direct submission to engineers, builders, or project managers.
Can you scan walls and soffits as well as slabs?
Yes. GPR scanning is not limited to horizontal slabs. We regularly scan walls and soffits for anchor installations, penetrations, and structural investigations. Contact us with your specific requirements and we'll confirm the right approach for your application.
More From
ConcreteX
Don't Drill Blind.
Scan First.
Same-day or next-day scanning across Sydney and NSW. Fast quotes, clear on-site results, structured reports within 24 hours.