Acoustic & Sonar
Ground Microphone Surveying
Surface listening to localise buried leaks point by point.
Serving BC since 1999
Non-invasive detection
Insurance-ready reports
Rapid response across BC
What is ground microphone surveying?
Ground microphone surveying places a sensitive listening device directly on the ground or pavement and sweeps it across the suspected pipe route. As the operator moves over the leak, the amplified sound peaks — localising the leak to a small surface area for confirmation or correlation.
How it works
- 1A weighted ground microphone is placed along the pipe route.
- 2The operator sweeps the surface listening for the sound peak.
- 3Amplitude readings localise the loudest point.
- 4The spot is confirmed with correlation or contact listening.
Advantages
Pinpoints from the surface
Works on lawns, pavement and concrete
Confirms correlation results
Effective on irrigation and service lines
Where we use it
Underground & Water Main Leak DetectionFind buried supply, irrigation and water-main leaks without trenchingAcoustic Leak DetectionListening equipment that hears pressurised leaks underground and in wallsIrrigation & Sprinkler Leak DetectionLocate buried irrigation and sprinkler leaks wasting water and money
Ground Microphone — FAQs
Can you survey across my lawn or driveway?
Yes — ground microphones work on grass, soil, pavement and concrete to localise a buried leak from the surface.
Is this the same as correlation?
It complements it: correlation calculates the position between two points, and the ground microphone confirms it precisely on the surface.
Other detection technologies
Infrared Thermal ImagingHigh-resolution infrared cameras that map moisture by temperatureInfrared Roof Moisture ScanningThermal surveys that reveal wet insulation under flat roofsThermal Radiant-Loop MappingSee in-floor heating loops and find their cold-spot faultsAcoustic Leak DetectionSensitive listening equipment that hears escaping waterLeak-Noise CorrelationTwo sensors and math that calculate a leak's exact positionUltrasonic Leak DetectionDetect the ultrasound of gas and pressurised leaks
Put the right technology on your leak
Call 604-239-9934 — serving British Columbia since 1999.