San José's Leading Ground Penetrating Radar Service Provider

Utility Locating, Video Pipe Inspection, Concrete Scanning & Industry Leading Deliverables

GPRS Serving San José

  • GPRS specializes in the location of underground utilities, concrete scanning and video pipe inspection. GPRS has an extensive nationwide network of highly trained and experienced Project Managers near San José and the surrounding area.

    We understand that your team’s safety depends on us providing a best in class service. When clients hire GPRS, they have peace of mind knowing that they have the most reliable technology on their project paired with a world class Project Manager who delivers the most accurate information available. GPRS leads the industry in providing outstanding service and cutting-edge technology, keeping projects on time, reducing safety risks, and putting relationships with our clients first. Our nationwide network of team members is committed to being your subsurface scanning solutions.


To ensure the overall timely success of you project, utility detection is critical to any construction project where a subsurface excavation is planned. If this critical first step is ignored, the risk for injury increases, budget overruns can multiply and your schedule can be delayed.

Video Pipe Inspection (CCTV) is a service used to inspect underground water sewer and lateral pipelines, VPI is a great tool for investigating cross-bores, structural faults and damages, and lateral line inspection.

With new build construction and renovation project, the likelihood of needing to cut or core concrete is high. There is an inherent risk of striking rebar, conduits, and post tension cables during the cutting or coring process. If a strict occurs, repair costs begin to add up, delays creep into your schedule and it creates a safety hazard for your employees.

The goal of the GPRS Deliverables Department is to deliver clear and understandable findings with each of our outputs from field markings to field sketches, KMZ files, or CAD drawings that provide 2D site plans or even 3D CAD models. In addition, upon the completion of every project, our customers receive a job summary that includes job scope information, site photos, description of site conditions, equipment used, and notes from the project.

GPRS Industry Expertise

Featured Projects in the Metro San José Area

GPRS locates utilities, scans concrete and provides video pipe inspections throughout San José and the state of California. We use cable avoidance tools to assist in locating buried electrical, water, gas, communication, sewer and storm drain lines in underground facilities. GPRS focuses on damage prevention and reducing the risk of injury to personnel and damage to utilities.


GPRS Of Northern California Performs Concrete Scan – California

Ground Penetrating Radar Systems - GPRS of California was contacted by Arcadis to perform a concrete x-ray in San Jose, CA by using GPR technology. Concrete scanning was used to check the concrete walls in several areas in order to locate rebar. GSSI GPR equipment was used to locate rebar in every location that was scanned. The data is able to be marked directly on the surface with no wait time for processing or developing.

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Rebar And Post Tension Locating – California

Ground Penetrating Radar Systems, LLC. (GPRS) of California was contacted by a general contractor to scan core drilling locations for plumbing and electrical at a hotel in East Bay area, CA. The contractor was not allowed to damage rebar during core drilling and especially did not want to drill through one of the numerous post tension cables that were embedded in the slab. GPRS was able to locate and mark the upper and lower layers of rebar onto the surface of the concrete so that the core could be performed without cutting through post tension or rebar. Unlike conventional X-Ray, GPR is not limited to a specific size of area at each location. We were able to scan at least a 2’ x 2’ area at each location so that the contractor would have safe options for drilling.

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GPRS Hired To Locate Underground Utilities At Job Site – California

Utilizing the latest in Ground Penetrating Radar (GPR) technology and Radio Detection, Greg Milburn of the GPRS San Francisco/Oakland office, responded to the site and was able to mark out various utilities traveling through the proposed excavation area. Scans were taken with the GSSI 400mhz antenna, combined with the RD7000 radio detection device to search for electric, gas, communication, water, sewer and unknown lines. GPRS findings were then marked directly onto the surface in real time for the customer to see. By utilizing GPRS, the customer was able to identify underground utilities and other subsurface obstructions in the area in a nondestructive, safe manner. The use of the professional services provided by GPRS allowed the customer to excavate promptly and safely, while keeping their project on schedule.

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Contact our San José team and our nearest project manager will contact you.

Serving San José, Palo Alto, Berkeley, Santa Rosa, Folsom, San Francisco, Salinas, Monterey, Modesto, Concord, Stockton, Merced, Sacramento, Bakersfield and Fresno.

We also work in the following Northern California counties Sacramento, Merced, San Benito, Napa, Sonoma, Santa Clara, Alameda, Contra Costa, San Joaquin, Stanislaus and El Dorado.