24/7 EmergencyWater Leak Detection
Running water sound, a meter that will not stop or damp spots with no clear source. We trace the plumbing leak to one spot before anything is opened.
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Schertz, Guadalupe County
Hidden, slab, underground and high water bill leaks located across Schertz and Guadalupe County. Call our 24/7 line and a specialist will start with your symptoms.
Local leak detection
Leak detection in Schertz starts with knowing the local housing and ground. Schertz sits in Guadalupe County in San Antonio and South Central Texas and is home to about 43,128 people, spread across 1 ZIP code we serve.
About 80% of homes here are detached single family houses, and the typical home was built around 2003. That mix shapes the leaks we see most often, which is why this page focuses on the problems that actually come up in Schertz rather than a generic checklist.
Figures from the U.S. Census Bureau American Community Survey 2019 to 2023 five year estimates and the USDA Plant Hardiness Zone Map.

Close the main shutoff valve, then call. We answer 24/7.
Call: (800) 901 7671Local leak problems
Based on the age and type of homes here, the ground they sit on and local winters.
With 80% detached homes, most on concrete slabs, and clay that swells and shrinks with the seasons, Schertz sees the classic Texas slab leak: a copper line under the foundation wears through where the slab moves. Warm floor spots, a busy water heater and a meter that keeps turning are the usual clues.
58% of homes in Schertz were built after 2000, many with automatic sprinklers. Buried irrigation mains and zone valves leak quietly, and in a Texas summer one bad zone can add more to the bill than the whole house.
About 27% of Schertz homes were built between 1980 and 1999. Many from that period were plumbed with polybutylene or early copper, and both are now at an age where fittings crack and pinholes form. Isolating and pressure testing each line shows which run is failing.
Properties around Schertz often have long buried lines to barns, shops and guest houses, laid in rocky or caliche ground. Locating the leak before digging matters more here than almost anywhere, because every wrong hole is slow and costly.
According to the U.S. Census Bureau American Community Survey, 2019 to 2023, 5% of homes in the Schertz area were built before 1960, 9% between 1960 and 1979, 27% between 1980 and 1999, and 58% since 2000.
Much of Schertz has been built since 2000. Newer homes mostly use PEX and CPVC, which rarely fail along the pipe but can leak at crimp rings, fittings and valves, and new subdivisions often come with automatic sprinkler systems whose buried lines are easy to damage.
Schertz lies in San Antonio and South Central Texas. North and west of San Antonio, the land rises onto the limestone and caliche of the Edwards Plateau. To the south and east, clay and sandy loam soils take over. Limestone and caliche make blind digging difficult in the Hill Country suburbs, while clay areas see the familiar pattern of slab movement and under slab leaks.
The Schertz area is in USDA Plant Hardiness Zone 9a, which means the coldest night of a typical winter drops to about 20 to 25 degrees Fahrenheit. Hard freezes are uncommon, but Winter Storm Uri in February 2021 brought freezing temperatures to nearly all of Texas, and homes here are rarely built with freezes in mind.
Long, hot summers, mild winters and occasional hard freezes, with heavy rain events that can follow dry periods. Along Farm to Market Road 3009 and the rest of the Schertz area, outdoor taps, attic lines and irrigation backflow preventers take the brunt of it.

The main public water system for Schertz is City of Schertz, listed in the EPA Safe Drinking Water Information System as system TX0940003, serving about 41,948 people.
In Schertz, as in most of Texas, the provider maintains the meter and the street side connection and the property owner maintains everything after it, including the service line to the house. Water pooling around the meter is worth a call to City of Schertz; a moving meter with the house shut down is a job for a meter leak investigation.
Main numbered routes through the Schertz area include Farm to Market Road 3009, Farm to Market Road 78 and Farm to Market Road 1518, and we cover addresses along all of them.
Nearby communities we also serve include Cibolo (about 2 miles), Universal City (about 3 miles), Converse (about 5 miles), Marion (about 7 miles), St. Hedwig (about 10 miles).
Services available here
Every service below is available to homes and businesses in Schertz and across Guadalupe County.
24/7 EmergencyRunning water sound, a meter that will not stop or damp spots with no clear source. We trace the plumbing leak to one spot before anything is opened.
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Non InvasiveMusty smells, soft floors or a bill that keeps climbing with nothing visible. We find concealed leaks inside walls, floors and cabinets without tearing things apart.
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Fast ResponseA brown ring on the ceiling or a damp patch on the wall. We trace it to the pipe, drain, fixture or AC line responsible before any drywall comes down.
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Popular In TexasWarm spots on the floor, cracks or a water heater that never rests. We pinpoint leaks under your concrete foundation so the slab is opened in one place only.
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Pier & Beam HomesSoft floors, standing water or a musty smell under the house. We inspect pier and beam crawl spaces and trace leaks in the supply and drain lines.
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Yard & Buried LinesA soggy patch, a sinking spot or water bubbling up with no rain. We trace buried lines and locate underground leaks so you dig one small hole, not a trench.
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Meter To HouseLow pressure, a wet meter box or a soggy strip between the street and the house. We locate leaks on the main line that feeds your home.
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High Bill?A bill that doubled or a meter dial that keeps turning. We investigate unexplained water use and find where the water is going.
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Lawn & LandscapeOne zone that stays soggy, low pressure at the heads or a valve that will not shut off. We trace buried sprinkler lines and find the leak.
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Pool & Hot TubLosing more than evaporation, an auto fill that never stops or wet ground by the equipment pad. We test the shell, fittings and plumbing.
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Business & PropertyOffices, retail, restaurants, warehouses and apartment communities. We find leaks with minimal disruption to tenants and trading hours.
Explore This ServiceDescribe what you see, hear or smell. A specialist will match it to the right test and tell you how pricing works, any time of day.
Call: (800) 901 7671Answered 24/7 across Texas
Don't see your leak listed? If it involves water going where it should not, we can help you find it.
Talk To A Specialist
Why Texas Leak Detection Experts
Most plumbers can fix a pipe. Fewer can tell you exactly where an invisible leak is without opening walls, floors or the yard. Leak detection is that one job, done with the right equipment and a methodical process, so the repair is small and done once.
Lines are isolated and tested so the search covers one run, not the whole property.
Acoustic, thermal, moisture and tracer gas tools find the leak before anything is opened.
You hear where the leak is, what likely caused it and your repair options in plain language.
Shoe covers, careful access and a tidy work area every visit.
How it works
Step 01
Tell us what you are seeing. We help you shut off water if needed and confirm availability and pricing on the call.
Step 02
The specialist confirms the leak, isolates each line and uses acoustic, thermal or tracer gas tools to find the exact spot.
Step 03
The leak is marked, the cause explained and repair options laid out, so you decide what happens next.
What to expect
Every call follows the same simple standard, wherever you are in the state.
You hear where the leak is, what most likely caused it and what the repair options are, in plain language and before any work is agreed.
How pricing works is explained on the phone before anyone is sent, so there are no surprises when the specialist arrives.
Lines are tested and the leak pinpointed with acoustic, thermal or tracer gas equipment, so any opening is small and in the right place.
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FAQ
Local answers for Schertz homeowners and property managers.
Talk to a real leak specialist, not a sales script. Advice over the phone is free.
(800) 901 7671The main public system is City of Schertz. In most Texas systems the provider maintains the meter and the pipe on the street side, while the owner is responsible from the meter to the house. If water is coming up at the meter, call the provider on your bill first. If the meter moves with everything off, the leak is on your side.
80% of homes in the Schertz area are detached houses, and most Texas houses from the 1960s onward sit on concrete slabs with water lines beneath. The local clay swells and shrinks with the seasons, which stresses those lines. Warm floor spots, a water heater that runs constantly and a moving meter are the signs to watch for.
Yes. Schertz is in USDA zone 9a, where a typical winter's coldest night reaches about 20 to 25 degrees Fahrenheit, and severe events like February 2021 go well below that. Pipes in attics, exterior walls, crawl spaces and above ground backflow preventers are most at risk. Some cracks only leak after the thaw.
Turn off every faucet, appliance and sprinkler zone, then open the meter box, the one City of Schertz reads each month, and watch the small triangle or star shaped low flow indicator. If it moves over 15 minutes, water is leaking. Close the main shutoff at the house: if it still moves, the leak is probably on the service line to your Schertz home.
We cover 1 ZIP code in the Schertz area, including 78154. Nearby areas in Guadalupe County and beyond are covered too, so call even if your address is on the edge of town.
Our line is answered 24 hours a day, 7 days a week. When you call from Schertz, Cibolo or Universal City, the specialist confirms availability and an arrival window on the call, and for an active leak talks you through shutting off the water while you wait.
It depends on the leak. In Schertz the most common job is slab leaks under shifting ground, and cost varies with how many lines need testing, whether the leak is under concrete or in the yard, and whether it is an after hours emergency. You will hear how pricing works on the call before anyone is sent.
Call any time
Call our 24/7 line from anywhere in Schertz or Guadalupe County and tell us what you are seeing.