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Plumbers of Little Rock
Plumbers of Little Rock
Plumbing · Arkansas
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Slab Leak

Water leaving a pipe under the slab soaks the fill the foundation sits on, so close the main if you can manage without water and get it located quickly.

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When this becomes an emergency

What a pro does

Locating comes before any concrete work, and a good plumber will spend real time on it. He isolates the hot and cold sides at the water heater to establish which run is losing, then works with acoustic listening equipment and pressure testing to narrow it to a small area of floor. On slabs over expansive clay he's also thinking about why the line failed. The clay under a lot of central Arkansas subdivisions takes on water through a wet spring and gives it back through a dry summer, and the slab moves with it. A copper line cast into that concrete gets flexed thousands of times, and it fails at a bend or a fitting where the stress concentrates. Abrasion is the other pattern, where a pipe rubbing against the concrete it passes through wears a hole from the outside in. Once he's found it, the decision is repair or reroute. A single break in an otherwise healthy system is worth a small opening in the slab and a patch. A system already showing its age usually gets new line run overhead or through the walls, leaving the buried section abandoned in place.

Frequently asked questions

Because that's when clay soil shrinks the most and the slab settles unevenly. Movement is the thing that breaks a buried supply line, so a long dry spell following a wet season tends to produce a run of these calls.
It's a strong sign when there's no heating source under that floor, and it means it's the hot line rather than the cold one. Confirmation still comes from the meter and the listening equipment, since a warm patch can also be sunlight or an appliance.
Running a new supply line to the affected fixtures through walls or the attic space, then abandoning the section under the concrete. It avoids repeat concrete work where the plumber expects more failures in the same run, and on an aging system that's usually the better long-term choice.
It depends on your policy, on what caused the failure, and on whether the coverage extends to reaching the pipe as well as fixing it. Your insurance provider is the only one who can answer that, and it's a call worth making before work starts.

Slab Leak?

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Plumbing in ArkansasBurst PipeClogged DrainDrain CleaningEmergency PlumberNo Hot WaterOverflowing ToiletPlumber Near MeSewer Line RepairSump Pump RepairWater Heater RepairWater Leak Repair

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