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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24/7 Emergency Service
San Antonio, Bexar County
Leak Detection In San Antonio, TX
Hidden, slab, underground and high water bill leaks located across San Antonio and Bexar County. Call our 24/7 line and a specialist will start with your symptoms.
- 83 San Antonio ZIP codes covered
- Bexar County and nearby areas
- Non invasive equipment
- 24/7 phone line
- 24/7 Emergency LineNights, weekends, holidays
- Non Invasive DetectionFind it before anyone digs
- 11 Leak SpecialtiesSlab to pool to commercial
- 696 Texas AreasFrom the Panhandle to the Valley
Local leak detection
Leak Detection For San Antonio Homes And Businesses
San Antonio is in Bexar County, part of San Antonio and South Central Texas, and is home to about 1,458,954 people. We cover 83 San Antonio ZIP codes for leak detection, from homes with a meter that will not stop to businesses with unexplained water use.
About 64% of homes here are detached single family houses, and the typical home was built around 1984. That mix shapes the leaks we see most often, which is why this page focuses on the problems that actually come up in San Antonio rather than a generic checklist.
1,458,954Residents in San Antonio (Census estimate)
745,412Homes and units in the area
1984Typical year homes were built
Zone 9aUSDA hardiness zone
Figures from the U.S. Census Bureau American Community Survey 2019 to 2023 five year estimates and the USDA Plant Hardiness Zone Map.
Leak In San Antonio Right Now?
Close the main shutoff valve, then call. We answer 24/7.
Call: (800) 901 7671Local leak problems
Leak Problems We See Most In San Antonio
Based on the age and type of homes here, the ground they sit on and local winters.
Slab Leaks Under Shifting Ground
With 64% detached homes, most on concrete slabs, and clay that swells and shrinks with the seasons, San Antonio 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.
Aging And Shared Service Lines
With 19 water systems registered locally and many older lots, service lines in San Antonio vary widely in age, material and route. A leak between the meter and the house shows as low pressure, a wet meter box or a soggy strip across the yard.
Pipes From The Polybutylene Era
About 26% of San Antonio 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.
Sprinkler Systems In Newer Neighborhoods
35% of homes in San Antonio 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.
Homes In San Antonio And What That Means For Leaks
According to the U.S. Census Bureau American Community Survey, 2019 to 2023, 17% of homes in the San Antonio area were built before 1960, 22% between 1960 and 1979, 26% between 1980 and 1999, and 35% since 2000.
Much of San Antonio 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.
Around 32% of housing units are in buildings with two or more units, so a leak in one unit can quickly show up as a ceiling stain in the unit below.
Ground And Weather In Bexar County
San Antonio 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 San Antonio 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 Interstate 10 and the rest of the San Antonio area, outdoor taps, attic lines and irrigation backflow preventers take the brunt of it.
Who Supplies Water In San Antonio
The main public water system for San Antonio is San Antonio Water System, listed in the EPA Safe Drinking Water Information System as system TX0150018, serving about 2,643,729 people.
There are also 18 other community water systems registered with a San Antonio address, including Jbsa Sam Houston and Jbsa Randolph, so neighbors on different streets can have different providers and rules.
For a typical San Antonio home, San Antonio Water System looks after the meter and the pipe on the street side, while the service line from the meter to the house belongs to the owner. If water is bubbling up at the meter box, report it to San Antonio Water System first. If the dial moves with every tap off, the leak is on your side, and a meter leak test is where we start.
Getting Around San Antonio
Main numbered routes through the San Antonio area include Interstate 10, Interstate 410, Interstate 35, Interstate 37 and US Highway 87, and we cover addresses along all of them.
Nearby communities we also serve include Helotes (about 12 miles), Converse (about 14 miles), Universal City (about 14 miles), Von Ormy (about 15 miles), Adkins (about 17 miles).
San Antonio ZIP Codes We Cover
- 78215
- 78219
- 78201
- 78216
- 78230
- 78209
- 78212
- 78233
- 78244
- 78245
- 78254
- 78260
- 78240
- 78247
- 78227
- 78208
- 78213
- 78217
- 78218
- 78228
- 78229
- 78232
- 78238
- 78239
- 78249
- 78250
- 78251
- 78255
- 78256
- 78257
- 78258
- 78259
- 78261
- 78266
- 78205
- 78202
- 78204
- 78207
- 78210
- 78211
- 78220
- 78221
- 78222
- 78237
- 78252
- 78263
- 78231
- 78248
- 78203
- 78214
- 78223
- 78224
- 78242
- 78253
- 78264
- 78206
- 78225
- 78226
- 78235
- 78241
- 78243
- 78246
- 78265
- 78268
- 78269
- 78270
- 78278
- 78279
- 78280
- 78283
- 78284
- 78285
- 78288
- 78289
- 78291
- 78292
- 78293
- 78294
- 78295
- 78296
- 78297
- 78298
- 78299
Services available here
Leak Detection Services In San Antonio
Every service below is available to homes and businesses in San Antonio and across Bexar County.
24/7 Emergency
Non InvasiveHidden Water Leak Detection
Musty 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 ResponseCeiling & Wall Leak Detection
A 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 TexasSlab Leak Detection
Warm 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 HomesCrawl Space Leak Detection
Soft 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 LinesUnderground Water Leak Detection
A 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 HouseWater Service Line Leak Detection
Low 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?Water Meter & High Bill Leak Detection
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 & LandscapeIrrigation & Sprinkler Leak Detection
One 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 TubPool & Spa Leak Detection
Losing 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 & PropertyCommercial Leak Detection
Offices, retail, restaurants, warehouses and apartment communities. We find leaks with minimal disruption to tenants and trading hours.
Explore This ServiceNot Sure Which Leak You Have?
Describe 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.
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24/7
Emergency line
Emergency line
Non Invasive
Find it before digging
Find it before digging
Why Texas Leak Detection Experts
The Leak Specialists San Antonio Homeowners Call First
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.
Pinpoint Accuracy
Lines are isolated and tested so the search covers one run, not the whole property.
Non Invasive First
Acoustic, thermal, moisture and tracer gas tools find the leak before anything is opened.
Clear Findings
You hear where the leak is, what likely caused it and your repair options in plain language.
Respect For Your Home
Shoe covers, careful access and a tidy work area every visit.
696+Texas cities and communities
24/7Phone line, every day
11Leak detection specialties
8Detection methods in our toolkit
How it works
Found In 3 Simple Steps
Step 01
Call Our 24/7 Line
Tell us what you are seeing. We help you shut off water if needed and confirm availability and pricing on the call.
Step 02
We Test And Pinpoint
The specialist confirms the leak, isolates each line and uses acoustic, thermal or tracer gas tools to find the exact spot.
Step 03
You Get Clear Answers
The leak is marked, the cause explained and repair options laid out, so you decide what happens next.
What to expect
What Texas Homeowners Can Expect
Every call follows the same simple standard, wherever you are in the state.
24/7Phone line, every day
Straight Answers
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.
Pricing Explained First
How pricing works is explained on the phone before anyone is sent, so there are no surprises when the specialist arrives.
Less Damage
Lines are tested and the leak pinpointed with acoustic, thermal or tracer gas equipment, so any opening is small and in the right place.
Gallery
Leak Detection Work Around San Antonio
FAQ
San Antonio Leak Questions?We've Got Answers.
Local answers for San Antonio homeowners and property managers.
Still Not Sure?
Talk to a real leak specialist, not a sales script. Advice over the phone is free.
(800) 901 7671Who Supplies Water In San Antonio, And Who Fixes A Leak At The Meter?
The main public system is San Antonio Water System. 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.
Are Slab Leaks Common In San Antonio?
64% of homes in the San Antonio 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.
Can Pipes Freeze In San Antonio?
Yes. San Antonio 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.
How Do I Check My San Antonio Home For A Leak Before Calling?
Turn off every faucet, appliance and sprinkler zone, then open the meter box, the one San Antonio Water System 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 San Antonio home.
Which San Antonio ZIP Codes Do You Cover?
We cover 83 ZIP codes in the San Antonio area, including 78215, 78219, 78201, 78216, 78230, 78209 and more. Nearby areas in Bexar County and beyond are covered too, so call even if your address is on the edge of town.
How Quickly Can Someone Come Out In San Antonio?
Our line is answered 24 hours a day, 7 days a week. When you call from San Antonio, Helotes or Converse, 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.
What Does Leak Detection Cost In San Antonio?
It depends on the leak. In San Antonio 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.
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Need Leak Detection In San Antonio?
Call our 24/7 line from anywhere in San Antonio or Bexar County and tell us what you are seeing.
Call Now: (800) 901 7671Answered 24 hours a day, 7 days a week