The difference between a $300 pipe repair and a $3,000 drywall-and-remediation job is often just whether the leak was found before or after excessive wall opening. Our detection service in Ontario uses the same methods utilities and insurance adjusters rely on โ to pinpoint the failure before anything is cut.

A pressure test tells us a leak exists. Detection equipment tells us precisely where.
Most effective on metal pipe under slab or in concrete โ materials that conduct sound efficiently. We establish a clean acoustic baseline by briefly shutting off the house before scanning.
Particularly effective inside insulated wall cavities and for finding the extent of moisture spread beyond the immediate leak point โ telling us not just where the pipe is failing but how far the moisture has already traveled.
We isolate the supply system, pressurize to operating pressure, and monitor over a timed hold period. Any pressure drop confirms active water loss from the supply side. By isolating zones โ hot side vs. cold side, section by section โ we narrow down which branch is leaking before deploying detection equipment.
For leaks that don't produce sufficient acoustic signature โ very slow leaks, polyethylene pipe, or leaks deep under concrete โ we introduce a nitrogen/hydrogen tracer gas mixture into the isolated pipe and use a calibrated gas detector at the surface to find where the gas escapes. Sensitive to concentrations far below what produces an audible acoustic signal.
Hidden leaks occur in different locations throughout a property โ each requiring a slightly different detection approach. Here's how we handle the most common scenarios in Ontario, OH.
Thermal imaging supplements acoustic detection for slab leaks, identifying the thermal anomaly that appears on the floor surface as water migrates through the concrete.

We document the thermal anomaly, mark the approximate pipe location, and recommend a minimal access cut rather than a wide wall opening โ typically saving hundreds in drywall repair costs.
Supply lines between the meter and the structure run underground and are vulnerable to corrosion, ground movement, and root damage. A main supply line leak shows as high meter usage with all interior fixtures off, sometimes with wet ground or sinkholes along the line path. Acoustic detection locates the failure in the buried line precisely enough to minimize excavation footprint โ we mark the surface above the leak so the repair crew opens only the section they need to.
Irrigation system leaks in main supply and lateral runs are found by isolating zones with the irrigation controller and pressure-testing each zone individually. Zone-by-zone testing narrows the failure to the smallest possible section.

Insurance claims for water damage from hidden leaks typically require documentation that the leak was not visible or detectable without specialized equipment. Our detection report includes: pressure test results confirming active water loss, detection method used, thermal imagery or acoustic mapping showing leak location, and technician certification information.
Commercial water loss from undetected leaks often shows up as elevated utility bills for months before physical evidence appears. We can assess a commercial building's plumbing system for suspected leaks at the property owner's or manager's request.
Here's exactly how a Masters Plumbing Service leak detection call plays out in Ontario, OH.
This step confirms we're looking for a real leak rather than a meter error or normal appliance cycling.
We isolate the supply system into zones โ hot side, cold side, individual branches โ and pressure-test each to determine which is losing water. This narrows the area of active search before detection equipment is deployed.
We document findings with thermal images and note detection readings at multiple grid points to triangulate the strongest signal.
You receive a written detection report including pressure test results, detection method summary, leak location relative to fixed reference points, and thermal imagery. If you want us to repair the leak, we quote immediately and can execute same-visit.

High-efficiency home with a slow leak โ about 1.5 gallons per hour. The tech used tracer gas after pressure testing confirmed the loss but acoustic detection couldn't localize it clearly. Gas detection found the escape at a micro-fitting under the slab in the utility corridor. Impressive work for a very difficult leak to find.
Our insurance company required professional leak detection documentation before approving the claim. Masters Plumbing Service's written report with pressure test data and thermal imagery was exactly what the adjuster needed. Claim approved. The detection cost was covered as part of the claim.
Commercial building with elevated water costs for six months. Masters Plumbing Service ran zone-by-zone pressure isolation across four floors, narrowed the loss to the third-floor kitchen supply branch, and located the failure with thermal imaging at a concealed valve body in the ceiling. No damage to the finished ceiling.
Masters Plumbing Service provides professional Leak Detection for residential and commercial properties throughout Ontario and the surrounding Ontario, OH service area. Detection appointments available most weekdays and Saturdays.

Call now to schedule โ most detection appointments available within 24โ48 hours.
๐ Call +1-844-833-0201 Now