Slab Leak Repair

Slab Leak Repair

Detecting and repairing leaks beneath your home’s foundation.

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One of the Trickiest Leaks to Catch

A slab leak occurs when a water pipe running beneath your home’s concrete foundation develops a leak. Because these pipes are buried, a leak here can go unnoticed for a while, often first appearing as an unexplained rise in your water bill, a warm spot on the floor, or the sound of running water when nothing is turned on.

Left unaddressed, a slab leak can cause serious structural concerns over time, along with mold growth and water damage. Our leak detection specialists use acoustic and electronic detection equipment to pinpoint a slab leak’s precise location before recommending a repair approach.


Plumber detecting a slab leak beneath a foundation

Signs You May Have a Slab Leak

  • Unexplained increase in your water bill
  • Warm spots on flooring (for leaks in hot water lines)
  • Sound of running water when all fixtures are off
  • Low water pressure throughout the home
  • Cracking in flooring, walls, or the foundation itself

If you notice any of these signs, it’s worth having a professional leak detection assessment before the situation worsens.


How Slab Leaks Are Repaired

Once the leak’s precise location has been confirmed with acoustic or electronic detection equipment, your plumber has a few possible paths forward depending on the specifics of the leak and your home. A targeted access repair involves breaking through only a small section of the slab directly above the leak to reach and repair the pipe, minimizing disruption compared to older, more invasive approaches.

In some cases, rerouting the water line entirely — running new pipe through walls or the attic instead of under the slab — avoids breaking the foundation altogether. For homes with aging galvanized or older copper piping throughout, a slab leak can also be a sign that a broader repiping project makes more financial sense than repeatedly repairing individual leaks in old pipe.


Slab Leak Repair by City

Local Step-3 pages for pinpoint slab leak repair after locating. Phone-only — call (708) 350-9399.


Frequently Asked Questions

Will fixing a slab leak require breaking up my floor?
Not always. Accurate detection often allows for a targeted access point rather than large-scale demolition.
Is a slab leak covered by insurance?
Many homeowner policies cover sudden, accidental water damage from a slab leak, though coverage varies. Check with your provider.
How much does slab leak repair cost?
Cost depends on the leak’s location and the chosen repair method. You’ll get a full quote after detection confirms the exact issue.
Is rerouting better than repairing through the slab?
It depends on the situation. Rerouting avoids breaking the foundation but may cost more upfront; your plumber can compare both options for your specific case.

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