Plumbers available now — 24/7/365 11553 Old Perrin Beitel Rd Ste 106, San Antonio, TX 78217
Emergency PlumbingSan Antonio · 24/7
24/7 Emergency Line(210) 229-8378
Call Now

Slab Leak Detection & Repair in San Antonio, TX

A slab leak is a break in a water line under the concrete foundation. It wastes water, undermines the slab and drives a bill up fast — and it is one of the most common serious leaks in San Antonio.

Open 24 hours, 7 days  ·  San Antonio & nearby

Faucet dripping water

Signs of a slab leak

  • A warm patch on the floor, often in a hallway
  • The sound of running water with every fixture off
  • A water bill that jumps with no change in use
  • Cracks appearing in flooring, or damp carpet with no spill
  • Water pressure that has dropped across the house

How we handle it

  1. Confirm there is a leak

    We isolate the house and watch the meter, so you are not paying to chase a leak that is not there.

  2. Pinpoint it

    Electronic and acoustic equipment narrows the leak to a spot, so we break as little concrete as possible.

  3. Choose the repair

    A spot repair, a reroute of that line overhead, or a repipe — we explain the trade-offs and the price of each.

  4. Repair and restore

    We make the repair, pressure test the line and close the work area up.

Why San Antonio gets so many slab leaks

Much of Bexar County sits on expansive clay. It swells in heavy rain and shrinks hard in drought, and that constant movement bends the copper lines cast into the slab until a pinhole opens. Add hard water and older thin-wall copper, and slab leaks turn up often in homes built from the 1970s through the 1990s.

Think you have a slab leak? First steps

If water is coming up through the floor, shut off the main valve. If the warm spot is over a hot line, turn the water heater off too. Then do not let anyone break concrete until the leak has been pinpointed. Our slab leak guide walks through the first hour step by step, and leak detection explains how we find the break.

Where we repair slab leaks

Across San Antonio and the surrounding towns, including Helotes, Converse, Schertz and Universal City. The clay soil is the same across the county, and so is the pattern of leaks we find.

What it costs

It depends on what the problem turns out to be, so we diagnose first. Your plumber then gives you an upfront price for the work, and you approve it before anything starts.

Questions people ask

Can it be fixed without breaking my floor?

Often yes. Rerouting the affected line above ground avoids opening the slab. It is not right for every layout, so we price both options for you.

Will my insurance cover it?

Policies differ. Many cover the resulting water damage rather than the pipe itself. We document what we find and what we repaired so you can file with your insurer.

Is it urgent?

Yes. A slab leak keeps running under the house, wastes water continuously and can soften the ground under the foundation.

Water where it shouldn't be?

Every minute counts. Call now and we'll get a plumber on the way.

(210) 229-8378
Call Now · (210) 229-8378