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Slab Leak Repair in Schertz, TX

A warm patch showed up on the tile, your water bill jumped with no change in how you use water, or you can hear water running with every fixture off. That is the classic slab leak: a pressurized supply line failing under the concrete your Schertz home sits on. Here is how we handle it: we isolate the system to prove it is a supply leak and not a drain issue, pinpoint the exact spot with acoustic listening discs and tracer gas before we cut anything, then repair the plumbing the right way for your specific slab. Armor Pro Services is licensed under Texas RMP #36282, locally owned, and you get a written price before any concrete is opened. We repair the plumbing. We do not do foundation or structural work, and we will say so plainly rather than take on a trade we are not licensed for.

Slab Leak Repair in Schertz: What We Actually Do

A slab leak is a leak in a water line that runs under or through the concrete slab your house sits on, and the honest first job is not cutting concrete, it is proving where the water is coming from. We isolate the plumbing and confirm whether it is a pressurized supply leak or an under-slab drain problem, because the two look identical from the living room and are repaired nothing alike. Once it is a confirmed supply leak, you have three real repair paths and we price each one upfront:

• Spot repair. We open the slab at the pinpointed leak, cut out the bad section, replace it, pressure-test, and patch the concrete. The least disruptive fix when the copper is otherwise sound and this is a first, isolated failure.
• Overhead reroute in PEX-A. We abandon the failed under-slab run in place and route a fresh line up a wall, across the attic, and back down. That run never gets cut into concrete again, which is the right call under a tiled bath or a kitchen island.
• Partial or full repipe. The honest answer when soft copper is pinholing in several places at once, because chasing one leak a year on a system failing all over just brings us back.

We are the plumbing contractor. The post-tension cables, the foundation, and any slab engineering belong to a foundation specialist, and we will tell you that straight rather than take on work we are not licensed for. We won't sell you a repipe when a six-foot point repair will do. Call 210-212-7667 and describe what is happening.

Signs of a Slab Leak in a Schertz Home

Slab leaks almost never show up as a puddle. They show up as small clues that are easy to write off until the water bill or the floor forces the issue, and on a post-1970 Schertz home the pressurized supply line under the post-tension slab is one of the likeliest places for water to hide. Watch for these:

• A warm or hot spot on the floor, usually tile, which points at the hot-water side.
• Water running when every faucet, toilet, and appliance is off.
• A water bill that jumped with no change in how much water you use.
• Water pressure that dropped across the whole house.
• New cracks in tile, or a section of floor that feels damp or has started to lift.
• A musty smell or mold at a baseboard with no source above the floor.

The fastest check you can do before we arrive: shut off every fixture, find your water meter, and watch the small leak-indicator dial. If it keeps creeping with everything off, water is escaping somewhere in the pressurized system. Talk to a licensed tech before anyone cuts a slab: call 210-212-7667.

Slab Leak Detection on a Schertz Post-Tension Slab: How We Find It

Cutting concrete in the wrong place is the single most expensive mistake in this trade, so we do not guess. A pinpoint on a Schertz post-tension slab runs the same order every time. First we isolate the system and confirm it is a pressurized supply leak, not a drain. Then we pinpoint the exact spot with acoustic listening discs that pick up the hiss of water escaping under pressure through the concrete, and tracer gas, a safe helium and nitrogen blend pumped into the isolated line that rises through the slab at the leak point for a sensitive detector to find.

Why post-tension changes the job: almost every Schertz build south of the county line was poured after 1970 on post-tension slab, which means there are steel tensioning cables cast into the concrete that must not be nicked. A location good to within a few inches is what keeps the opening small and the cables clear.

A smaller, confirmed opening means a cleaner repair and far less floor to patch back. That is the whole point of pinpointing before we cut, and it is why we show you where the leak is on the floor before we quote the repair. Ready when you are: call 210-212-7667.

Spot Repair vs Reroute vs Repipe: Choosing the Right Fix in Schertz

Once we know exactly where the leak is and how the rest of the line looks, the repair decision comes down to the age and history of the piping, not a sales script. Here is how we call it on Schertz homes:

1. Spot repair when the copper is otherwise sound and this is a first, isolated failure. We open the slab at the pinpointed spot, replace the bad section, pressure-test, and patch. Least disruptive, least cost, and the right move when the line has life left in it.
2. Overhead PEX-A reroute when the under-slab copper has already failed once, or the run sits somewhere brutal to open like under a tiled bathroom or a kitchen island. We abandon the failed line in place and route fresh PEX-A up a wall and across the attic, so that run never gets cut into concrete again.
3. Partial or full repipe when the soft copper is pinholing in multiple spots at once. On the newer Schertz builds this is less common than in the pre-1970 core of San Antonio, but a home that has had two or three slab leaks in a couple of years is telling you the system is failing all over, and chasing one leak at a time just brings us back next year.

We price spot repair, reroute, and repipe upfront and in writing, so the choice is yours, not a surprise on the invoice.

Most Schertz slab leaks we pinpoint on younger builder-grade copper come down to a spot repair or a single overhead reroute, not a whole-house repipe. We will lay out which path fits your home and what each one costs before any concrete is touched. Get it pinpointed today and decide with real numbers.

Why Slab Leaks Happen in Schertz: Local Soil and Water Pressure

Schertz is hard on under-slab copper for reasons specific to this stretch of the Guadalupe and Comal county line, which is why we look for the root cause instead of just patching the symptom. Three drivers stack up under the slab out here:

• Expansive clay soil. The ground along the county line swells when wet and shrinks hard through a Central Texas drought, and that seasonal movement flexes and shears the rigid copper supply lines cast into a post-tension slab. The same soil cycle that cracks laterals works on supply lines.
• Hard water. The supply out this way runs near the high end of the metro range, roughly 18 to 22 grains per gallon on the tap tests we pull in Schertz, hard enough that the minerals scour the inside of soft copper and speed up the pinhole failures that become slab leaks. When that is the pattern, the fix that actually holds sometimes starts upstream with a water softener sized for Schertz water, not just a patch on the pipe.
• High incoming pressure. A home running well above the recommended range wears its pipes out faster, which is why, when we find a slab leak, we also check the pressure-reducing valve at the main.

Fixing the leak without fixing what drove it just sets up the next one. We fix the leak, and we tell you what is causing it, in writing. Tell us what is going on and we will come back with a firm number.

When a Schertz Slab Leak Repair Is the Wrong Call

We would rather lose the job than cut your slab for nothing, so here is when we tell a Schertz homeowner to hold off. If your meter sits perfectly still with every fixture off, you almost certainly do not have a pressurized slab leak, and opening the slab would be a mistake. What you are chasing is more likely a fixture leak above the floor, a drain-side issue, or a grading and drainage problem outside, and we will flag that instead of selling you a slab repair.

We also will not do the part that is not ours. If your home has a genuine structural or foundation problem, cracked slab, heaving, sticking doors, that is a foundation specialist's job, not a plumber's, even though the two get blamed on each other. And a single first-time pinhole on otherwise-sound copper is a spot repair, not a repipe. We will not talk you into repiping a whole house over one leak.

One more Schertz-specific note: many local HOAs require proof of contractor license, insurance, and a scope of work on file before work starts, and some hold you to weekday work-hour windows. We carry the license and insurance documentation those associations ask for and can provide it up front, so the paperwork does not stall your repair.

How a Slab Leak Repair Call Works in Schertz

Here is the order of operations so you are not guessing:

1. You call 210-212-7667 and describe the signs: warm floor, running water, jumped bill, damp flooring. If a supply line is actively spraying, treat it as urgent and we prioritize it.
2. We isolate the system and confirm supply leak versus drain, and rule out the above-floor and outside causes so you are not paying to open concrete you do not need to.
3. We pinpoint the exact spot with acoustic listening and tracer gas, clear of the post-tension cables, and show you where it is on the floor.
4. You get a written, upfront price on each repair option, spot repair, reroute, or repipe, before any concrete is touched. You approve it or you do not.
5. We make the repair, pressure-test the line, and patch back the concrete we opened. Workmanship is backed for one year in writing; parts follow manufacturer terms.

Calls placed by early afternoon on a weekday are typically reached the same business day for most of the service area, with next-morning first call common for outlying addresses. Prefer to put it in writing first? Tell us what is going on and we will come back with a straight answer.