Signs of a Slab Leak in Your Plano Home

A slab leak is a water supply or drain line, running through or under the concrete slab your home sits on, that springs a leak. Because it is hidden under the foundation, it can run for weeks before anyone notices, soaking the subfloor and wicking up the walls the whole time. In Plano, where the expansive Blackland clay constantly stresses slabs and the pipes cast into them, slab leaks are a recurring problem. Here is what to watch for.

1. A warm spot on the floor

A hot-water line leaking under the slab warms the floor above it. If one patch of tile or wood is noticeably warm with no reason, a slab leak is a likely cause.

2. An unexplained jump in the water bill

A slab leak runs continuously, so the water bill climbs even though nothing in your routine changed. A sudden spike with no explanation is one of the most reliable early signs.

3. The sound of running water

With every faucet and appliance off, you hear water running or trickling, sometimes in or under the floor. That is water moving through a leak you cannot see.

4. Damp, warped, or cracking flooring

Water rising through the slab reaches the flooring from below. Hardwood cups, laminate swells, and tile or grout can crack as the slab moves. A damp spot with no spill is a red flag.

5. A musty smell or low water pressure

Moisture trapped under the floor feeds mold, so a persistent musty smell with no visible source can point to a slab leak. A drop in water pressure can also signal a supply line losing water under the slab.

What to do if you suspect a slab leak

Call early. The plumbing side, locating and repairing the failed line, is a separate trade, but the water damage side needs to start fast: drying the slab, flooring, and walls before they warp and before mold sets in. The longer a slab leak sits, the more of your flooring and structure moves from dryable to replaceable.

Think you have a slab leak? Call 469-599-3295 and describe what you are seeing.

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