Never core drill, saw cut, or anchor bolt blindly into concrete. Our high-frequency Ground Penetrating Radar concrete scanners map structural reinforcement (rebar), post-tensioned cables, live electrical conduits, and slab thickness in real time with zero radiation.
Tell us about your project and our team will respond promptly.
Select the exact subsurface investigation or pipeline service your project requires—from pre-excavation sweeps and slab coring clearance to CCTV camera diagnostics.
Subsurface & Concrete
High-resolution radar scanning to locate buried utilities, map rebar & post-tension tendons before core drilling, and detect subsurface anomalies.
All Buried Services
Complete underground scanning services combining GPR and electromagnetic locating to detect buried water pipes, electrical cables, and fibre in one visit.
CAD, GIS & KML Maps
Survey-grade buried services surveys using Stonex Total Station & GNSS to deliver georeferenced AutoCAD (.DWG), Google Earth (.KML), and PDF utility reports.
Metal, PVC & Concrete
Accurately locate and map buried water mains, sewer lines, gas pipes, and stormwater drains—whether metallic, PVC, HDPE, or fibre-cement.
Power & Fibre-Optic
Pinpoint live high- and low-voltage electrical power cables, street lighting feeders, and telecommunications or fibre ducts before digging.
Internal Camera Survey
Robotic crawler and push-rod camera inspections inside stormwater and sewer pipes to diagnose blockages, cracks, and root intrusion without digging.
You don’t just get a technician walking around with a scanner—you get immediate physical markings on the ground plus engineering-grade digital utility maps for your design and safety files.
Output 01 · Same Day
Every detected water pipe, power cable, telecom sleeve, or rebar grid is clearly marked on the ground or concrete slab with alignment arrows and estimated depth callouts so your crew can work safely right away.
Output 02 · Digital Map
Surveyed with our Stonex GNSS & Total Station instruments, all detected underground utilities are plotted onto high-resolution aerial imagery and CAD drawings for your engineers and architects.
Output 03 · Full Report
Comprehensive project documentation featuring annotated site photographs, radargram depth profiles, utility schedules, and methodology sign-off for your construction health & safety file.
Severing a tensioned tendon, main structural rebar, or embedded power conduit during core drilling causes dangerous structural damage, costly downtime, and expensive remedial engineering. Unlike X-ray radiography, concrete GPR requires no building evacuation and delivers instant on-slab markings.
We scan around your proposed core drilling or floor-sawing locations and mark every rebar bar, tendon, and conduit directly on the concrete surface so your drillers hit clear concrete.
Identify the parabolic drape profile and depth of post-tensioned (PT) steel tendons inside suspended commercial, retail, and parking garage slabs.
Determine rebar grid spacing, bar layers, concrete cover depth, and slab thickness for structural engineers assessing load upgrades, refurbishments, or as-built compliance.
Locate plastic or metal electrical conduits, underfloor heating pipes, plumbing lines, and honeycombing or sub-slab voids.
Fast, clean on-site marking so your core drillers or engineers can proceed immediately.
Show our technician the exact points where you need to core drill, cut, or verify reinforcement.
We run our concrete GPR scanner in perpendicular X-Y passes to image both layers of reinforcement and angled tendons.
Rebar grids, post-tension cables, conduits, and safe "Clear to Core" zones are drawn clearly on the concrete slab.
We provide photographic records, radargram profiles, and cover depth logs for your structural engineer and safety file.
See how our field crews and multi-sensor GPR equipment solve complex subsurface challenges across South Africa.
Johannesburg & Gauteng
Full-corridor Ground Penetrating Radar, EM locating, and GNSS topographic mapping of water mains, sewer lines, and HV cables with CAD/GIS overlays.
Mpumalanga & North West
High-depth Ground Penetrating Radar and electromagnetic locating of critical cooling water pipelines, fire mains, and high-voltage feeders prior to civil upgrades.
Midrand & Sandton, Gauteng
Pre-excavation cable avoidance, fibre-optic duct tracing, and concrete slab scanning before core drilling with georeferenced KML and PDF deliverables.
With mobile field crews based in Johannesburg (Gauteng) and Rustenburg (North West), our utility detection and GPR scanning teams deploy directly to your site across all nine provinces. Select a region below to explore local services:
Need specific advice for your site? Call our team directly on 061 766 8359, WhatsApp 061 766 8359, or use our alternative landline 010 746 3891.
Concrete GPR scanning is 100% radiation-free, only requires access to one side of the slab or wall, can be performed in occupied buildings during normal working hours, and provides immediate on-site markings without waiting for film processing.
Yes. By scanning a structured grid across the slab, our technicians trace the characteristic draped depth profile of post-tensioned (PT) tendons versus the uniform horizontal grid of standard reinforcing steel (rebar).
Our high-frequency concrete GPR systems accurately detect rebar, tendons, conduits, and slab thickness up to 500 mm–600 mm deep in cured concrete.
Book your Ground Penetrating Radar or utility detection survey today and get 10% off your first service.
