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 Dunnigan 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.
Pressurized supply line leaks create a low-frequency sound as water escapes the pipe and contacts surrounding soil or structure. Our amplified listening devices filter background noise so we can triangulate the loudest point โ often to within 6โ12 inches of the actual break, through concrete slabs or behind drywall.
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.
Pressure decay testing is the standard by which we confirm a leak is present before committing detection equipment time. A rapid drop vs. a slow one also indicates the approximate size of the escape point.
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.
Our detection service covers the full property, not just the obvious locations.
Supply lines running under or through the concrete slab fail from corrosion, shifting, or manufacturing defects โ and the leak is invisible from the surface but audible to acoustic equipment. We walk the floor on a grid pattern, map the loudest detection points, and triangulate to a specific floor location, typically within a square foot. Confirmed slab leak location is documented with marked coordinates for the repair crew.

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.

We format detection reports specifically for insurance submission and provide documentation on our detection equipment and methodology to claims adjusters on request.
Commercial buildings have complex pipe networks where a supply or drain leak can go undetected through multiple floors before surfacing. We approach commercial detection systematically โ zone-by-zone pressure isolation, thermal scan of suspect surfaces, and acoustic confirmation.
Finding a hidden leak isn't a single step โ it's a protocol that combines water loss confirmation, zone isolation, and targeted detection in sequence.
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.
Within the isolated zone, we deploy thermal imaging first โ scanning walls, floors, and ceilings for moisture anomalies. Then acoustic equipment confirms the specific pipe location and narrows it to the tightest possible point. Tracer gas is added if acoustic results aren't conclusive.
Insurance-formatted reports are available for claims submission at the same standard โ no additional cost.

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.
Pool was losing 2 inches per day โ more than evaporation. Masters Plumbing Service pressure-tested the plumbing circuit, isolated the issue to the return line, and ran acoustic detection along the line path to find the failure at a union fitting under the decking. Repair required pulling one deck board instead of the exploratory digging another company had proposed.
Masters Plumbing Service provides professional Leak Detection for residential and commercial properties throughout Dunnigan and the surrounding Dunnigan, CA service area. Detection appointments available most weekdays and Saturdays.

Masters Plumbing Service's detection team finds hidden leaks in Dunnigan homes and commercial properties using equipment that eliminates guesswork. The detection appointment pays for itself the moment it prevents one unnecessary wall opening.
๐ Call +1-844-833-0201 Now