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Locator Guys

Ground Penetrating Radar (GPR)

Non-Invasive Subsurface Detection for Safer Excavation

Ground Penetrating Radar (GPR) uses high-frequency radar to accurately locate underground utilities and structures without digging. Detect metal and non-metal services, pipes, cables, tanks, and voids quickly and cost-effectively. Ideal for detailed subsurface mapping by experienced locating professionals.

Jay using GPR instrument to detect underground services in a non-invasive subsurface manner at a horse track in north canterbury
GPR Explainer Panel - Ground Penetrating Radar (GPR) instruments send radar pulses into the subsuface and display reflected signals for experienced operators to locate underground objects such as utility services.

Ground Penetrating Radar (GPR) is a non-invasive, high-frequency radar technology that helps our team accurately locate underground utilities and structures without the need for digging. Capable of detecting both metallic and non-metallic services such as PVC, PE, clay, and concrete; GPR offers a fast, cost-effective way to create accurate subsurface maps.


Ground Penetrating Radar services are commonly used to locate:

 

  • Buried pipes and cables

  • Manhole covers and valves

  • Septic tanks and old foundations

  • Underground storage tanks

  • Voids, cavities, and culverts

Like all technology, GPR has its limitations, signal effectiveness can be reduced in certain soil types, particularly clay-rich or saline ground. That’s why GPR is just one of the tools our experienced team use to build a complete and accurate map of your site.


Contact Locator Guys today to book your GPR scan and ensure safe, informed excavation.

  • Locating underground utilities helps prevent costly damage to essential services like power, water, gas, and telecom cables - reducing safety risks and project delays.

  • We use advanced methods such as Ground Penetrating Radar (GPR) and Electromagnetic Induction (EMI) to accurately detect a wide range of underground utilities, including non-metallic pipes. We also incorporate other industry-leading technologies as needed to ensure the most accurate and reliable results for each site and soil condition.

  • While factors like soil conditions and pipe materials can influence detection, our industry leading technology combined with expert analysis consistently delivers precise, high confidence results you can trust. We are fully transparent about our findings and any limitations, empowering you to plan your project with complete clarity and confidence.

  • No, maps can be outdated or incomplete. Professional on-site locating is essential to verify and accurately mark all underground services before excavation.

  • Stop digging immediately and contact the relevant utility provider. Prompt reporting helps manage hazards and ensures safety compliance.

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