A slab leak is a water line leaking under the concrete foundation of your home. You can't see it, but you feel it: a warm spot on the floor from a hot-water-line leak, a water bill that jumped, the sound of running water with everything off, cracked or heaving flooring, or a musty smell. Cibolo's expansive clay soil is a big part of the story — clay swells and shrinks with moisture, and that movement stresses and shears slab-embedded pipe.
The worst mistake is opening the slab to "find" the leak. We locate it first with acoustic and pressure equipment, then choose the least-invasive fix — sometimes a spot repair, often a reroute that avoids breaking concrete at all.
Slab leak warning signs
- A warm spot on the floor (a hot-water slab leak)
- A water bill that spiked with no change in usage
- The sound of running water when everything is off
- Cracked, buckling, or heaving flooring
- Low water pressure that developed gradually
- A musty smell or unexplained damp carpet
What's Included When You Book Slab Leak Repair
Every slab leak detection & repair job in Cibolo comes with the same standard of care — no vague “we'll take a look” and a surprise bill. Here's exactly what you get:
- Isolation and pressure testing to confirm the slab leak and which line is leaking
- Acoustic and infrared pinpointing so concrete isn't opened on a guess
- Honest repair-vs-reroute options with real numbers
- The Cibolo under-slab permit pulled (about $60)
- A second pressure test to confirm the fix holds
- Documentation of the location and cause for your claim
How we handle a slab leak
- 1
Confirm and pressure-test
We isolate the hot and cold systems and pressure-test to confirm a slab leak and which line is leaking before locating it.
- 2
Pinpoint without breaking concrete
Acoustic sensors and, where useful, infrared help us mark the exact leak location so we don't open concrete on a guess.
- 3
Choose the least-invasive fix
We give you honest options — a targeted spot repair through the slab, or rerouting the line overhead/through walls to avoid breaking the slab entirely.
- 4
Repair, permit, and verify
We complete the repair (Cibolo under-slab plumbing permit is about $60), pressure-test again to confirm, and document for your insurer.
What Affects the Price
Slab leak cost splits into detection and repair. Detection is priced by the tools the symptom requires; repair depends on whether you spot-fix through the slab or reroute the line.
- Detection runs about $150–$400 in the San Antonio area
- Spot repair through the slab vs. rerouting the line to avoid opening concrete
- Which line is leaking, its depth, and access
- Flooring and slab restoration if concrete is opened
- Cibolo under-slab plumbing repair permit is about $60 (we pull it)
Why we're Cibolo's slab-leak team
Clay-soil specialists
Expansive clay is why slab leaks are common here. We diagnose them accurately and fix them for good.
Least-invasive first
We favor rerouting over jackhammering when it saves your floors and your budget.
Insurance-ready documentation
We prove the location and cause with photos and a written scope for your claim.
Licensed Plumber in Cibolo, TX
Need Slab Leak Repair in Cibolo? We're Ready.
Scheduled plumbing for Cibolo with upfront, written pricing — no surprises. Free estimates on planned work and financing available on bigger jobs.
Prefer to talk now? Call (831) 290-4327 — a real person answers.
Slab Leak Repair FAQs
Classic signs are a warm spot on the floor (from a hot-water line), a water bill that jumped with no change in use, the sound of running water when everything's off, and cracked or heaving flooring. If you notice these, call us — we'll confirm it with a pressure test before locating it.
Not always. Once we pinpoint the leak, we give you options: a targeted spot repair through the slab, or rerouting that line overhead or through walls to bypass the slab entirely. Rerouting often avoids breaking concrete and can be the more cost-effective choice.
Expansive clay soil is the main reason. Clay swells when wet and shrinks when dry, and that constant movement stresses the copper or other pipe embedded in the slab until it develops a leak. Hard water and older pipe add to it. A site inspection confirms the specific cause.
Many policies cover the sudden water damage and the cost to access the leak (tear-out and repair of the slab), but not always the pipe repair itself, and it depends on your policy and the cause. We document everything so you can file with the records adjusters want.
Detection is usually a single visit. The repair itself depends on the method: rerouting a line overhead or through walls is often quicker and avoids breaking concrete, while a spot repair through the slab adds flooring and slab restoration time. We give you both options with timelines before any work.
It depends on the leak's location, the age of the piping, and your floors. Rerouting bypasses the leaking section entirely and can be more cost-effective than opening the slab; a spot repair fixes just the failed point. We locate the leak first, then explain which makes sense for your home.
Slab Leak Repair Across the Metrocom
We provide slab leak detection & repair throughout Cibolo and nearby communities including Schertz, Selma, Universal City, Converse, Live Oak. From our Cibolo base we cover the whole Metrocom and out across Guadalupe County and the surrounding Comal, Wilson, Bexar, Hays, Caldwell, and Gonzales county communities — with prompt scheduling that works around your day. See every community on our service areas page, or, not sure if we reach you? Call (831) 290-4327 and we'll tell you straight.
