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 Lawrence Township 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.
Active water leaks create temperature differentials on the surfaces they contact. An infrared camera shows these as color-coded heat maps, revealing the wet zone inside a wall or under a floor without any cutting. A cold water leak behind drywall appears as a spreading cool zone; a hot water leak shows the inverse.
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.
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 Lawrence Township, NJ.
Thermal imaging supplements acoustic detection for slab leaks, identifying the thermal anomaly that appears on the floor surface as water migrates through the concrete.

Wall and ceiling leaks are often traced by following a visible stain to its apparent high point โ but visible damage can be several feet from the actual pipe failure due to how water travels down framing members. Thermal imaging reveals the wet zone accurately, and acoustic equipment confirms the pipe location within the wall cavity.
We also perform leak correlation surveys for longer line runs, using two listening points to triangulate the failure location mathematically.
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 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.
Here's exactly how a Masters Plumbing Service leak detection call plays out in Lawrence Township, NJ.
We start at the meter. All fixtures off, we watch the meter for 10 minutes. Movement confirms active water loss from the supply side. We also check for visible evidence โ stains, soft floors, moisture readings with a moisture meter at suspect wall surfaces.
Zone isolation turns "there's a leak somewhere in the house" into "the leak is on the hot side supply between the water heater and the master bath."
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.
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 Lawrence Township and the surrounding Lawrence Township, NJ service area. Detection appointments available most weekdays and Saturdays.

Masters Plumbing Service's detection team finds hidden leaks in Lawrence Township 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