Slab Leak Detection That Finds the Source Without Digging

Water escaping beneath a concrete foundation can go unnoticed for months while it damages flooring, drywall and the slab itself. Our non-invasive slab leak detection pinpoints the exact location of the leak so repairs stay small and targeted.

  • Non-Invasive Detection
  • Pinpoint Accuracy
  • Free Estimates
Technician performing slab leak detection on a foundation
15+
Years of Experience
12,000+
Leaks Located & Repaired
BBB Accredited Business
BBB Accredited
Award winning service
Award-Winning Service
Why It Matters

What a Slab Leak Really Costs You

A slab leak is more than a drip under the floor. Left alone, it undermines the structure of your home and steadily inflates everything it touches.

Rising Water Bills

Water lost under the slab is still metered, so a small leak can quietly add hundreds to your bill.

Foundation Damage

Constant moisture softens soil and can cause the slab to shift, crack or settle unevenly.

Mold & Damp Air

Trapped moisture feeds mold and mildew behind baseboards, under carpet and inside walls.

Wasted Water

Every day you wait, thousands of gallons can escape into the ground beneath your home.

Slab leak detection equipment set up inside a home
No-DigLeak location
The Service

How Our Slab Leak Detection Works

Slab leaks happen when a pressurized supply line or drain pipe running beneath your foundation develops a pinhole, a joint failure or corrosion. Because the pipe is buried in concrete, the leak rarely announces itself in one obvious place. Water follows the path of least resistance and surfaces wherever the concrete allows.

Our technicians combine several detection methods in a single visit to narrow the search area from your whole home down to a few inches of slab. We isolate the plumbing system, verify that the meter is moving with all fixtures off, then use sound and temperature to trace the water to its source. The result is a documented, precise location that a repair crew can access with the smallest possible opening.

  • Full-system pressure and isolation testing
  • Acoustic listening to hear water escaping
  • Thermal imaging of warm and cool spots
  • Marked location and written leak report
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Common Causes

Why Slab Leaks Happen

Every slab leak has a physical cause. Knowing what typically goes wrong under a foundation helps you understand the finding and prevents the next failure.

Pipe Corrosion

Copper and galvanized steel lines react with soil chemistry and water over the years. The pipe wall thins, pits and eventually opens into a pinhole that releases water under pressure.

Soil Movement & Abrasion

Expansive soils swell and shrink with moisture. That movement presses pipes against gravel, rebar and concrete, gradually rubbing a wear point through the line.

Failed Joints & Fittings

Soldered joints, compression fittings and elbows are common failure points. Poor original workmanship or simple age can leave a connection that weeps under the slab.

High Water Pressure

Pressure above the recommended range stresses every joint in the system. A pressure-reducing valve that has failed can turn a manageable system into a leak waiting to happen.

Hot Water Line Stress

Hot-water lines expand as they heat and contract as they cool. That constant cycle fatigues the pipe and its connections faster than cold lines under the same slab.

Age & Pipe Material

Homes with original mid-century plumbing are more prone to slab leaks. If your system is decades old, a single leak often signals that other sections are close behind.

Next Steps

Your Repair Options After Detection

Once the leak is located, there is usually more than one way to fix it. We explain each option, its lifespan and its true cost so you can choose with confidence.

Targeted Spot Repair

For an isolated failure, we open the smallest area possible, repair or replace the damaged section, and restore the surface. This is best when the rest of the pipe is still in good condition.

Pipe Reroute

When a line under the slab keeps failing, we can abandon it and route a new line overhead or through the walls. This avoids large concrete work and protects your flooring.

Whole-Home Repipe

If corrosion affects multiple sections, replacing the plumbing can be more cost-effective than repeated repairs. We walk you through the long-term math before you decide.

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Warning Signs

Signs You May Have a Slab Leak

Slab leaks rarely look like a puddle. Watch for these quieter clues and call for detection before the damage spreads.

Warm Spots on the Floor

A hot-water line leak often warms a small patch of flooring from underneath.

Damp or Buckled Flooring

Tile, laminate and hardwood can lift, cup or feel soft where moisture gathers.

Hissing or Running Water

Hearing water move when everything is off points to a pressurized line leak.

Water Meter Keeps Moving

If the meter ticks with all fixtures shut off, water is escaping somewhere in the system.

Musty Odors Indoors

A persistent damp smell that never clears is a classic sign of hidden moisture.

Reduced Water Pressure

A break in a supply line often shows up as a sudden drop in pressure at the tap.

Cracks in Floor or Walls

New cracks that appear near a wet area can signal soil movement under the slab.

Unexplained Bill Spike

A jump in usage without a change in habits usually means water is being lost underground.

Our Process

Slab Leak Detection in Four Clear Steps

A calm, methodical inspection that gives you answers the same day.

Consultation

We ask about your symptoms, water usage and any recent plumbing changes to focus the search.

System Isolation

We shut off fixtures and appliances, then confirm whether the meter indicates an active leak.

Pinpoint Testing

Acoustic, thermal and electronic tools trace the leak to a precise spot on the slab.

Report & Repair Plan

You receive a marked location, photos and clear repair options before any work begins.

Our Technology

Tools That See and Hear Through Concrete

No single method finds every slab leak. We layer several technologies to confirm the source before we recommend a repair.

Acoustic Microphones

Ground microphones amplify the sound of pressurized water escaping through the slab.

Infrared Imaging

Thermal cameras reveal warm supply-line leaks and cool moisture patterns in the floor.

Electronic Line Tracing

Signal transmitters map the hidden path of pipes so we know exactly what runs below.

Pressure Testing

Isolating sections of the system confirms which line is losing pressure and how fast.

Technician using a thermal camera to confirm a slab leak
Same DayFindings reported
Why Choose Us

Slab Detection Built Around Protecting Your Home

The whole point of detection is to avoid unnecessary demolition. When leak location is guesswork, homeowners end up with large, disruptive repairs and a floor that never looks the same. We take the opposite approach.

Our technicians are trained to think about the repair before we ever mark the floor. We confirm findings with more than one method, document the location clearly, and walk you through the options so you can decide with confidence.

  • Multiple methods used to confirm every finding
  • Clear explanation before any work is quoted
  • Clean, respectful technicians and tidy work areas
  • Rectify and refine the spot before recommending repair
Learn About Our Team
Related Services

Where This Service Fits

Slab detection pairs naturally with our other leak and repair services.

Slab leak repair

Slab Leak Repair

Once the leak is located, we repair it with the smallest possible access point.

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Water leak detection

Water Leak Detection

Find hidden water leaks behind walls, under floors and outdoors before they spread.

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Pipe leak detection

Pipe Leak Detection

Locate leaks in copper, PEX, galvanized and PVC pipe anywhere in your system.

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FAQ

Slab Leak Detection Questions

We isolate the plumbing system, then use acoustic microphones, thermal imaging and electronic line tracing to listen for and visualize the leak through the concrete. These tools let us narrow the location to a small area before any access is needed.

Most slab leaks come from corrosion or abrasion on copper supply lines, failed pipe joints, or shifting soil that stresses the pipe under the foundation. Aging plumbing and high water pressure both increase the risk.

Yes. Detection is non-invasive and usually takes one to three hours. There is no dust, no demolition and no need to vacate. We only ask that you avoid using water fixtures briefly during testing.

Coverage varies by policy, but many homeowner policies cover the resulting damage or access costs for a sudden leak rather than the detection itself. We provide a clear written report and photos that you can submit to your insurer.

Most inspections are completed within a couple of hours. More complex systems or multiple suspected leaks can take longer, but you will receive findings and next steps the same day.

No. A slab leak only gets worse over time as water erodes soil and widens the opening. Early detection is almost always cheaper than waiting, because it limits secondary damage to the floor and foundation.

Yes. Our team can move straight from detection into slab leak repair, using the smallest access point required, so you are not juggling multiple contractors.

Suspect a Slab Leak?

Get a precise, non-invasive diagnosis today and stop the damage before it spreads. Free, no-obligation estimates.