Slab Leak Detection & Repair in Mesa — Fast, Accurate, No Guessing

    Warm spots on floors?High water bill, no visible leak?Water running under your home?

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    We'll locate the slab leak and start repairs immediately.

    ⚠️ Slab leaks destroy foundations and flooring. Call now — we find and fix them today.

    24/7 Emergency Service
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    Serving Mesa, Chandler + 18 Cities
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    Dealing With Any Of These? We Fix It Now.

    Leak Detection
    Slab Leaks
    Underground Leaks
    Wall & Ceiling Leaks
    Water Line Leaks
    Trenchless Repair
    Pipe Rerouting
    Foundation Leaks
    Slab Leak Repair

    What Is a Slab Leak?

    Expert plumber performing careful pipe repair — OX Plumbing workmanship

    A slab leak happens when a water line running under your home's concrete foundation begins to leak. These leaks are often caused by pipe corrosion, pressure issues, or natural wear over time. Because the leak is hidden under the slab, it can go unnoticed until serious damage starts to appear.

    OX Plumbing specializes in locating and repairing slab leaks throughout Mesa, Chandler, Gilbert, Tempe, Queen Creek, and the entire East Valley. We use advanced detection equipment to find the exact source — and fix it the same day.

    Foundation
    At risk if leak is ignored
    24-72h
    Until mold begins to grow
    1 gal/min
    A pinhole leak can waste

    Signs You May Have a Slab Leak

    Slab leak repair exposing existing underslab drain connection and rerouting plumbing lines in Mesa, Arizona.

    Slab leaks are hidden under your foundation, so they often go undetected until visible damage appears. Watch for these warning signs:

    • Unexplained increase in water bill
    • Warm or damp spots on floors
    • Cracks in walls or flooring
    • Mold, moisture, or pooling around the home
    • Sound of running water when everything is off
    • Water meter moving with no fixtures running

    Why Slab Leaks Are Serious

    Full DWV system layout installed during slab leak repair with multiple branch connections in Mesa, Arizona.

    Slab leaks can cause structural damage, foundation issues, and major water damage if not handled quickly. Because they occur under the home, they require specialized equipment and expertise to locate and repair properly.

    The longer a slab leak goes undetected, the worse the damage gets — and the more expensive it becomes to fix. Don't wait. If you suspect a slab leak, call OX Plumbing immediately.

    What's at risk:

    • Foundation cracks & shifting
    • Flooring warp & lifting
    • Mold inside walls
    • Spiking water bills

    Our Slab Leak Repair Process

    Main underslab drain line reroute with open trench access for slab leak repair in Mesa, Arizona.

    OX Plumbing follows a proven process to locate, diagnose, and repair slab leaks with minimal disruption to your home:

    • 1Locate the leak using advanced detection equipment — acoustic listening, pressure testing, and thermal imaging.
    • 2Identify the best repair method based on the leak's location, severity, and your home's plumbing configuration.
    • 3Complete the repair with minimal damage to your home using one of these methods:
    • Trenchless Pipe Repair: The least invasive option — we repair the pipe without digging up your slab.
    • Pipe Rerouting or Repiping: We reroute the water line around the slab to bypass the damaged section entirely.
    • Tunneling Under the Slab: For leaks that require direct access, we tunnel under the foundation to reach and repair the pipe.

    What To Do If You Suspect a Slab Leak

    Vertical drain stub-up installation through concrete slab as part of slab leak repair in Mesa, Arizona.

    If you suspect a slab leak, call us immediately. The faster the leak is located, the less damage it will cause. You can also shut off your main water supply to help reduce further damage until we arrive.

    OX Plumbing responds quickly to slab leak calls because we know every minute counts. We'll get a plumber to your door fast, diagnose the issue, and start the repair the same day.

    Emergency steps to take right now:

    • 1Shut off the main water supply to stop further damage.
    • 2Note any warm spots, sounds, or wet areas — this helps us pinpoint faster.
    • 3Take photos for your homeowner's insurance claim.
    • 4Call OX Plumbing — we arrive prepared to locate and repair the same day.

    Frequently Asked Questions

    How do I know if I have a slab leak?
    Common signs include warm or damp spots on your floors, an unexplained spike in your water bill, cracks in walls or flooring, the sound of running water when everything is off, and mold or moisture around the base of your home. If you notice any of these, call OX Plumbing immediately for a professional assessment.
    How do you find a slab leak without tearing up my floor?
    We use advanced detection equipment including acoustic listening devices, pressure testing, and thermal imaging to pinpoint the exact location of the leak under your slab — without unnecessary demolition. We only access the area needed for the repair.
    Can you fix a slab leak the same day?
    Yes — in most cases we locate and repair slab leaks in a single visit. Our plumbers arrive prepared with the tools and materials needed to complete the repair quickly, whether it requires trenchless pipe repair, pipe rerouting, or tunneling under the slab.
    What causes slab leaks?
    Slab leaks are typically caused by pipe corrosion, shifting soil, poor installation, water pressure issues, or natural wear over time. Arizona's soil conditions and temperature changes can accelerate pipe deterioration, making slab leaks a common issue in the East Valley.
    How much does slab leak repair cost?
    The cost depends on the location of the leak and the repair method required. OX Plumbing provides clear, upfront pricing after diagnosing the issue — no hidden fees or surprises. Call us for a fast assessment and honest quote.
    Is a slab leak covered by homeowner's insurance?
    Many homeowner's insurance policies cover water damage caused by slab leaks, though coverage varies. We recommend contacting your insurance company as soon as you suspect a slab leak. OX Plumbing can provide documentation of the repair to support your claim.

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