What Is GPR Utility Mapping?

Ground Penetrating Radar (GPR) is a non‑invasive technique used to detect changes in material below the surface. In utility surveys it helps identify buried pipes, cables, ducts and voids that may not appear on existing records, reducing the risk of service strikes and unexpected ground conditions.

What to Look For

• You are planning excavation, piling or ground beams in an area with limited records
• Utility drawings are incomplete, historic or contradictory
• You suspect unmapped services or redundant infrastructure on site
• Ground conditions may include made ground, basements or voids
• You must comply with guidance on avoiding underground utility damage
• Designers want to understand where new services can be routed safely

How We Diagnose the Problem

GPR units transmit radio waves into the ground and record reflections from interfaces between materials with different properties. Skilled interpretation of these signals, combined with electromagnetic locators and statutory records, produces a more complete picture of buried utilities than any single method on its own.

How We Fix It

Our utility mapping partners combine GPR with other detection methods to deliver coordinated utility drawings tied to your topographical survey. Outputs clearly mark confidence levels so designers and contractors know where extra caution or trial holes may be required.