My house sits on clay in Houston; Texas soil does the same trick everywhere: swells wet, shrinks dry, stresses whatever pipe runs under your floor. As of mid-September 2026, Dallas has swung from a hot stretch into rain — the whiplash that cracks a line nobody’s checked.
Warm spot on the tile? Water bill off? That’s why your group chat’s buzzing.
I read Google reviews, BBB, Thumbtack and Angi listings for Dallas-area slab leak plumbers, keeping only ones with 50-plus reviews, 4.5-plus on Google, and recent activity. I couldn’t confirm a license number for any of these, so I’m not claiming one exists. Standard disclosure, and I mean it: no one on this list paid to be here, and I have no business relationship with any of them.
1. American Leak Detection of Dallas, North Texas
One reviewer said this company got recommended by two other plumbing outfits they’d already called — that’s not something you buy. They’ve built 1,404 Google reviews without dropping under 4.7, and recent ones keep mentioning on-time arrival and three repair options with real cost breakdowns instead of one take-it-or-leave-it number. I’d ask them to put it in writing: three repair options with real numbers attached, not just the cheapest fix they can talk you into on the phone.
2. Double M Plumbing
Thirty-eight years doing this in Dallas, and it shows: 4.9 on Google across 180 reviews, 4.95 on Thumbtack, straight 5s on Angi. Reviewers keep landing on same-day response and a yard that looks normal again after they’ve dug it up — that second part matters more than people think going in. My first-timer note: ask what “same day” covers — the diagnosis or the actual fix, because those can be two different calls.
3. Mother Modern Plumbing, Sewer & Drain
Only four years old, but 352 Google reviews at 4.9 is loud for that short a run. People keep describing a team that gives clear written options and doesn’t push the bigger job. Free estimates, warranties, emergency service are all on offer. Before you sign, I’d ask what the warranty covers once they patch the concrete back up — the pipe repair and the slab restoration aren’t always covered the same way.
4. Plano Plumbing & Leak Detection
I thought a slab leak always meant tunneling under the house. Turned out sometimes it’s rerouting the line overhead instead — the call one reviewer said this crew made when a leak sat too close to the foundation to dig safely. That’s 266 Google reviews averaging 4.8, and same-day response shows up again and again. This one usually can’t wait — ask straight whether your case needs tunneling or rerouting, since the price and yard damage ride on that answer.
5. Leak Chasers Plumbing & Gas
Gas lines are the wrinkle here. This is a smaller operation — 103 Google reviews, not one under five stars, matched by a perfect run on Angi — and reviewers keep naming owner Donnie Horton for clear communication. If your slab leak sits near a gas line, that’s the case for calling them over a straight water plumber. Ask upfront whether they’re handling water, gas, or looping in someone else for one of them.
Which one to call
Warm spot on the tile, no water yet? Start with American Leak Detection. Water already pooling and you need someone today? Plano’s the one reviewers say shows up same-day. Want the long track record and a yard that looks untouched after they leave? Double M. Need a clean written quote before anyone breaks concrete? Mother Modern. Gas line anywhere near the leak? Leak Chasers…