Leak Detection
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Nationwide Leak Specialists
Hidden Leaks Are Silently Draining Your Wallet
Hidden leaks cost American homeowners $10,000 or more per year in structural damage, sky-high water bills, and mold remediation — and most go undetected for months. John Plumbing's certified technicians use cutting-edge, non-invasive technology to locate every leak precisely, without tearing open your walls or jackhammering your floors. We find it fast. We fix it right.
Serving homeowners and businesses Near You — same-day diagnostics available.
Signs You May Have a Hidden Leak
Don't ignore these warning signals — a small hidden leak can become a catastrophic structural failure:
- ! Unexplained spike in water bill — usage creeping up with no change in habits
- ! Warm or damp spots on the floor — a classic sign of a slab leak from a hot-water line
- ! Sound of running water when every tap and appliance is turned off
- ! Cracks appearing in your foundation or walls — water eroding soil beneath the slab
- ! Mold or mildew patches on walls, ceilings, or baseboards — even without visible moisture
⚡ If you notice any of these, call us immediately: (844) 624-1566
Our Toolkit
Detection Technology We Use
We deploy the same professional-grade equipment used by municipal water utilities — not guesswork, not assumptions. Precision detection every time.
Acoustic Listening Devices
Hyper-sensitive ground microphones amplify the sound signature of pressurized water escaping from pipes buried underground or inside walls — pinpointing leaks within inches.
Thermal Imaging Camera
FLIR-grade infrared cameras detect temperature differentials caused by moisture seeping through slabs, walls, or ceilings — all without a single hole drilled.
Pressure Testing
We isolate pipe sections and apply controlled pressure to confirm a breach exists and measure its severity — giving you full data before we recommend any repair approach.
Tracer Gas Detection
A harmless hydrogen/nitrogen tracer gas is introduced into the pipe. Ultra-sensitive detectors trace the gas as it rises through soil and concrete to mark the exact leak point — even under thick slabs.
How It Works
Our 3-Step Leak Detection Process
Diagnostic Scan
Our technician arrives on-site and conducts a full property scan using acoustic and thermal equipment. We assess your water meter, review your bill history, and run a pressure baseline across all pipe zones — establishing a clear picture of where water is going.
Pinpoint Location
Using a combination of acoustic listening, tracer gas, and thermal imaging, we triangulate the exact leak position — typically within 2–3 inches. We mark the precise location for repair crews, saving you from unnecessary excavation or demolition.
Repair Plan
We present a clear, itemized repair plan with upfront pricing — no hidden fees. Depending on the leak type and location, options may include pipe re-routing, spot repair, epoxy pipe lining, or slab repair. You choose, we execute on your timeline.
Got Questions?
Leak Detection FAQs
Is the leak detection process truly non-invasive?
In the vast majority of cases, yes. Our acoustic, thermal, and tracer gas methods require zero drilling, cutting, or demolition. We only recommend any targeted opening of a surface after we've confirmed the exact leak location — so you never pay to tear open a wall unnecessarily.
Can you detect slab leaks without breaking my floor?
Absolutely — slab leak detection is one of our specialties. Our tracer gas and acoustic equipment are specifically designed to penetrate through concrete. Once we know exactly where the breach is, your contractor only needs to expose that precise spot rather than jackhammering large sections of your floor.
How much does leak detection cost?
Leak detection service calls typically range from $175–$450 depending on property size and the number of zones tested. Many homeowners recoup that cost in a single month of corrected water bills. We provide an upfront quote before any work begins — no surprise charges.
How long does it take to find a hidden leak?
Most residential leak detection appointments take 1–3 hours from start to final marking. Complex multi-zone commercial properties may require longer. Same-day appointments are available in most service areas — call (844) 624-1566 and we'll get a technician dispatched quickly.