Slab Leaks in Central Texas: Signs, Causes & Fixes

A slab leak is a leak in a water line that runs in or under the concrete foundation slab your home sits on. Because the pipe is encased in or beneath concrete, the water has nowhere obvious to go — so it hides, sometimes for weeks, while it drives up your bill and undermines the slab. It can be on the pressurized supply side (hot or cold) or, less commonly, the drain side.

• A sudden jump in your water bill with no change in use.
• Warm spots on the floor (a hot-water-line leak).
• The sound of running water when every fixture is off.
• Cracks in flooring or walls, or doors that suddenly stick.
• Low pressure or unexplained moisture/mildew smell.

Catch these early — a slab leak rarely improves on its own and gets more destructive the longer it runs.

Two local forces. Our expansive clay soils swell and shrink with our wet/dry swings, shifting the slab and stressing the pipes cast within it. And our hard water plus high pressure corrode and scale supply lines toward pinhole leaks — and a pinhole under the slab is a slab leak. The combination is why Central Texas sees more slab leaks than soft-water, stable-soil regions.

We use electronic leak detection to pinpoint the leak before opening anything, then choose the least-invasive repair — a targeted spot repair, a reroute, or trenchless relining where it fits — to spare your floors. As master-plumber-owned, we diagnose the real cause and, where hard water/pressure drove it, fix that too. No dispatch fee; comparing a big quote? Get a free second opinion.

Don't wait — request leak detection and we'll locate it fast and guide you to the right fix. Worried about future leaks? A Flo smart shutoff and softening reduce the risk. See more in plumbing for every space.