GPR Concrete Scanning in Modesto
Ground-penetrating radar finds what is inside the concrete — rebar, post-tension cables, and conduit — before anything is cut.
How scanning works
A scanner rolls across the surface and reads what is embedded in the slab: reinforcing steel, post-tension cables, electrical conduit, and voids. The findings are marked on the concrete where they lie.
Scanning comes before cutting on any slab that might hold something expensive or dangerous. Cutting through a post-tension cable or a live conduit is the expensive way to find out where they run.
The scan covers the cut lines and hole locations for the job. If something is in the way, the marks show where the cut can move to instead.
What a scan finds
- Rebar and wire mesh
- Post-tension cables
- Metal and plastic conduit
- Voids under the slab
GPR Scanning prices
How the prices on this page work: the ranges below are published price ranges for this kind of work. A range is not a quote. Your written estimate is the exact price for your job.
| Job | Published range |
|---|---|
| Minimum service charge on most jobs | $150–$400 |
The written estimate is the price for your job.
Cutting a slab you cannot see into?
Send the size of the area and what is being cut or drilled. The estimate will say whether a scan is needed first.
Questions
What can GPR find in concrete?
Rebar and wire mesh, post-tension cables, metal and plastic conduit, and voids under the slab. It reads through the full depth of most slabs.
Do I need scanning before core drilling?
On a slab with post-tension cables or in-floor conduit, yes — the scan marks where the safe holes are. On a plain reinforced slab it is optional, and the estimate will say what makes sense for yours.
Does scanning damage the floor?
No. The scanner rolls on the surface, and nothing is cut or drilled for the scan itself.
How is scanning priced?
Per job, in the written estimate, by the size of the area scanned. Small scans land at the minimum service charge, $150–$400.
Get a price on the job
Written estimates are free. Measurements and a photo price most cutting work.