Professional Leak Detection in Ely, MN β Acoustic, Thermal & Pressure Methods
A water bill that jumped 30% with no change in usage. A ceiling stain that keeps reappearing after patches. A soft spot in the 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 testing in Ely, MN to locate leaks without speculative demolition.
The Tools Behind Accurate Leak Detection in Ely, MN
A pressure test tells us a leak exists and how much water is escaping. Detection equipment tells us precisely where.
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Acoustic Ground Microphone
Acoustic detection is most effective on metal pipe (copper, cast iron) under slab or in concrete β materials that conduct sound efficiently. It works in quiet environments and requires shutting off the house briefly to establish a clean acoustic baseline.
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Infrared Thermal Camera
Active water leaks β hot or cold β create a temperature differential on the surfaces they contact. An infrared camera shows these differentials 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 blue-gray cool zone; a hot water leak shows the inverse.
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Pressure Decay Testing
Pressure decay testing is the standard by which we confirm a leak is present before committing detection equipment time. It also tells us approximately how significant the leak is β a rapid pressure drop vs. a slow one indicates the size of the escape point.
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Tracer Gas Detection
Tracer gas detection is the method of last resort for the most challenging cases β it adds cost and setup time. We use it when acoustic and thermal methods haven't produced a definitive location and the evidence clearly supports an active leak.
What We Locate
Hidden Leak Types We Find and Document
Our detection service covers the full property, not just the obvious locations.
Under Slab
Slab Leak Detection
Supply lines run under or through the concrete slab in most slab-on-grade homes. When these lines fail β from corrosion, shifting, or manufacturing defects β 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.
In-Wall
In-Wall & Ceiling Leak Detection
We document the thermal anomaly, mark the approximate pipe location, and recommend a minimal access cut rather than a wide wall opening.
Water Main
Underground Supply Line Detection
We mark the ground above the detected leak location so the repair crew opens only the section they need to.
Pool & Irrigation
Pool Line & Irrigation Leak Detection
Pool plumbing β suction and return lines buried between the equipment pad and the pool shell β can develop leaks at fittings or in the pipe body that appear as unexplained water loss. We pressure-test the pool plumbing circuit, isolate the return and suction lines separately, and use acoustic detection to find which line and where.
Commercial
Commercial Property Leak Detection
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 property manager's request.
Documentation
Leak Detection Report for Insurance
We format detection reports specifically for insurance submission and can provide documentation on our detection equipment and methodology to claims adjusters on 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.
1
Initial Water Loss Confirmation
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 any visible evidence β water stains, soft floors, moisture readings with a moisture meter at suspect wall surfaces.
2
Zone Isolation & Pressure Decay
We isolate the supply system into zones β hot side, cold side, and if possible, individual branches β and pressure-test each zone to determine which branch is losing water. This narrows the area of active search significantly before detection equipment is deployed.
3
Detection Equipment Deployment
We document findings with thermal images and note detection readings at multiple grid points to triangulate the strongest signal.
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Written Report & Repair Options
You receive a written detection report including pressure test results, detection method summary, leak location (described relative to fixed reference points), and thermal imagery. If you want us to repair the leak, we quote the repair and execute immediately. If you have your own plumber, the report gives them everything they need.
Customer Reviews
Real Leak Detection Reviews from Ely
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High-efficiency home with a leak that defied normal detection. Water loss was slow 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.
β C. Thornton, Ely
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Ceiling stain in the living room kept coming back despite two drywall patches. Masters Plumbing Service ran the thermal camera and found the wet zone was traveling from a supply line joint 9 feet away and flowing down a horizontal framing member β explaining why the patch kept failing. They marked the actual pipe location, we opened 8 inches of wall there, and the repair held. No more stain.
β B. Osei, Ely, MN
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Commercial building where water costs were running 40% above baseline for six months. Masters Plumbing Service ran a systematic 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.
β T. Anand, Ely, MN
Common Questions
Leak Detection Questions from Ely, MN Property Owners
The most reliable self-check: shut off every fixture and appliance in the house, then watch the water meter for 15 minutes. Any movement β including the small leak indicator dial β means water is escaping the supply side somewhere. If the main meter dial moves with everything off, you have a leak. Call us to locate it.
The repair itself requires physical pipe access, which typically means a small, targeted opening. But that's a completely different proposition from opening large wall sections while searching for an unknown leak location.
For leaks in plastic pipe, low-pressure situations, or high-noise environments, accuracy may be lower and tracer gas becomes the preferred supplemental method.
Yes. Our written detection report includes: technician credentials, equipment identification, pressure test methodology and results, detection method description, leak location with reference measurements, and supporting thermal imagery. This is the documentation format most insurance adjusters require to approve a concealed-leak water damage claim.
A standard residential leak detection β confirming water loss, isolating the failing zone, and deploying detection equipment to locate the failure β typically takes 1.5β2.5 hours. More complex scenarios (multi-zone commercial, large properties, very slow leaks requiring tracer gas) can run 3β4 hours.
The repair quote is given before any wall or floor is opened. You know the full cost of detection + repair before anything is cut.
Service Area
Masters Plumbing Service Detection Technicians in Ely and Beyond
Our detection technicians are equipped with acoustic, thermal, and tracer gas tools for the full range of leak scenarios found in Ely, MN homes and commercial properties.
