A water bill that jumped 30% with no change in usage. A ceiling stain that keeps reappearing after painting. A soft spot in flooring with no visible source. These are signs of a hidden leak that's been running long enough to cause structural damage β and every day it runs is money lost and damage accumulating. Masters Plumbing Service uses acoustic ground microphones, thermal imaging cameras, and precision pressure decay testing to locate leaks in Goose Creek homes without speculative demolition.

A pressure test tells us a leak exists. Detection equipment tells us precisely where.
Most effective on metal pipe under slab or in concrete β 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.
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 β hot side vs. cold side, section by section β we narrow down which branch is leaking before deploying detection equipment.
For leaks that don't produce sufficient acoustic signature β very slow leaks, polyethylene pipe, or leaks deep under concrete β 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 β each requiring a slightly different detection approach. Here's how we handle the most common scenarios in Goose Creek, SC.
Supply lines running under or through the concrete slab fail from corrosion, shifting, or manufacturing defects β 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 β typically saving hundreds in drywall repair costs.
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 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.
Finding a hidden leak isn't a single step β it's a protocol that combines water loss confirmation, zone isolation, and targeted detection in sequence.
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 β 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."
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 β 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 β 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 Goose Creek and the surrounding Goose Creek, SC service area. Detection appointments available most weekdays and Saturdays.

Call now to schedule β most detection appointments available within 24β48 hours.
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