Slab Leak Detection ProsSlab Leak Detection Leander: Find the Leak, Save Your Floor
Need slab leak detection in Leander? Our Leander slab leak detection specialists find hidden leaks under concrete without guesswork. If your Leander water bill has jumped or a floor feels warm, a pipe under your slab may be leaking. Licensed plumbers serving Williamson County use pressure tests, acoustic listening and thermal imaging to pinpoint the leak before any concrete is opened, saving your floors and money.
- Acoustic listening
- Thermal imaging
- Tracer gas
- Pressure & hydrostatic tests
- Camera inspection
Does your Leander home need slab leak detection?
- Water bill jumped with no change in use
- Meter keeps moving with everything off
- Warm spot on tile, wood or carpet
- Running-water sound when nothing is on
- Water heater runs constantly
- Damp carpet, cupped wood, musty smell
- Sewer smell or slow drains
- New cracks or sticking doors
I hear running water in my Leander home, but nothing is on. What does that mean?
A faint hiss or trickle with every fixture off usually means a pressurized line is leaking somewhere, sometimes under the slab. Do a meter test to confirm, then have the line isolated and pinpointed.
Before you book slab leak detection in Leander
Five minutes of setup and a two-hour wait will tell you whether your Leander home is losing water.
- Turn everything off. Faucets, dishwasher, washer, ice maker, sprinklers and pool fill.
- Find your meter. It is usually in a box near the street. Read the number or take a photo.
- Wait one to two hours. Use no water at all during that time.
- Read it again. If the number moved, or the small leak indicator is spinning, water is escaping.
- Narrow it down. Close the house shut-off. If the meter keeps moving, the leak is in the yard line; if it stops, it is inside, possibly under the slab.
What our Leander slab leak detection covers
We do one thing: find leaks under concrete slabs. Every visit is done by an independent, licensed Texas plumber who specializes in leak detection, so you pay to find the leak, not to break concrete searching for it.
Water Line Leaks
Find leaks in the pressurized supply lines buried in or under your slab.
Hot-Water Line Leaks
Thermal imaging traces warm spots and leaking hot-water runs.
Drain Line Leaks
Hydrostatic and isolation tests find drain leaks that never show on your meter.
Pressure Testing
Confirm a leak exists and measure how fast the line loses pressure.
Line Isolation & Tracing
Separate hot, cold and branch lines and map where they really run.
Acoustic Pinpointing
Ground microphones hear escaping water through the concrete.
Tracer Gas Detection
For very quiet leaks and plastic pipe, gas rises at the leak point.
Written Leak Report
Exact location, readings and photos for your insurer or water utility.
What makes slab leak detection in Leander different
Central Texas soil changes at I-35: east of it is Houston Black Clay that swells and shrinks dramatically, while the west side is thin soil over limestone. Drought cycles and water restrictions make the movement worse.
Leander's fast-growing neighborhoods sit largely on limestone and thin soils west of I-35.
Serving homes across Leander, including neighborhoods near Leander MetroRail station, Devine Lake Park, US 183.
Why does it matter which side of I-35 my Leander home is on?
East of I-35, homes sit on Houston Black Clay that moves a lot, so pipe stress is the main risk. West of it, homes sit on limestone, where movement is smaller but reaching a leak through the slab takes more work.
Pipes, home ages and slab leak detection in Leander
Across Leander: 1980s–2000s suburbs plus large new master-planned communities. Knowing what pipe is under your floor tells the plumber which slab leak detection method will work best.
Copper supply lines
Common in homes built from the 1960s through the early 2000s. Copper wears where it rubs against concrete or gravel, and pinhole leaks show up as homes pass 25–40 years old. Acoustic listening finds them well.
Cast-iron drains
Standard in homes built before about 1980. Cast iron rusts from the inside and cracks as the slab moves. Drain leaks never show on the water meter, so a hydrostatic test and camera inspection are used.
Polybutylene
Gray plastic pipe installed from about 1978 to 1995. It is known for failing at fittings. Tracer gas and pressure testing are often the best ways to locate leaks in it.
PEX and newer plastic
Used in most homes built since the 2000s, often run from a manifold. PEX leaks are usually at fittings or where the pipe was nicked during construction. Each run can be pressure-tested from the manifold.
Nine steps of slab leak detection in Leander
The same nine steps on every job, so you know what’s happening and why. Read the full process →
Listen and look first
The plumber hears what you've noticed and walks the home to look for clues.
Rule out the easy causes
Toilets, faucets, irrigation, the water heater and the AC drain are checked so you don't pay to search for the wrong leak.
Confirm the leak with the meter and a pressure test
A meter test and a pressure test prove water is escaping from the plumbing.
Isolate the leaking line
Hot, cold and branch lines are separated so the search focuses on the one that's leaking.
Test the drains, if needed
Drain leaks don't show on the meter, so they get their own hydrostatic test and camera check.
Trace the pipe's route
An electronic locator maps where the leaking line actually runs under the floor.
Pinpoint the exact spot
Acoustic listening, thermal imaging and tracer gas find where the water is escaping, and two methods must agree.
Scan the slab and mark the leak
The slab is checked for steel tendons and rebar, and the leak is marked on the floor.
Get your written report
You receive the leak's location, the line, the readings and photos in writing.
Water coming up through the floor in Leander?
Shut off the main water valve and call now. We’ll connect you with a licensed slab leak specialist.
Your Leander slab leak detection visit, start to finish
When you book slab leak detection in Leander, a licensed plumber who knows Williamson County homes comes to you with the tools to read through concrete: pressure gauges, acoustic ground microphones, thermal imaging and tracer gas.
Before any listening starts, the plumber rules out toilets, faucets, irrigation and the water heater, then pressure-tests the system. Closing the cold inlet at the water heater shows whether the leak is on the hot or cold side.
Then comes pinpointing: the pipe is traced, the slab is checked for post-tension cables, and acoustic and thermal readings are compared until they agree. That is what makes the mark on your Leander floor reliable.
You finish the visit with the leak marked on the floor and a written report in hand. That report is what makes slab leak detection in Leander worth it: no one has to search by breaking concrete.
We arrange slab leak detection for homes all over Leander, from neighborhoods near Leander MetroRail station to those around US 183. Most visits take two to four hours.
Slab leak detection in Leander, done the careful way
Most of the cost of a slab leak comes from searching for it and repairing the floor afterward. Slab leak detection is all we do, so you get an exact location before anyone touches your floor.
Licensed Texas plumbers
All work is done by independent plumbers licensed in Texas who will show their license number on request.
Typical prices up front
Know the usual range before anyone arrives, and get a written quote before work starts.
Documentation you can use
Photos, readings and a written summary for your insurer or your water utility’s leak credit.
Why Leander homeowners call a slab leak detection specialist
Many general plumbers do excellent work. The difference is focus and equipment when the leak is hidden under concrete.
| What matters | Slab leak detection specialist (our network) | Typical general plumbing contractor |
|---|---|---|
| Main focus | Only finding hidden leaks under slabs | Installs, repairs and remodels across all plumbing |
| Detection tools | Acoustic ground mics, thermal imaging, tracer gas, line tracing | Varies; often a pressure test and visual inspection |
| Locating the leak | Pinpointed before any concrete is opened | May open the floor in more than one place to search |
| Drain leaks under slab | Hydrostatic, isolation test and camera find the broken section | May recommend replacing the whole drain system |
| After the leak is found | Exact spot marked and documented; you choose who fixes it | Often moves straight into its own repair or repipe |
| Paperwork | Written report with photos for insurance and water credits | Usually an invoice only |
| Typical cost to locate | $150–$600 in most Leander homes | Varies; exploratory openings add cost |
Tip: whoever you call, ask which detection methods they use and whether they’ll pinpoint the leak before opening the slab.
Slab leak detection prices for Leander homes
Published national and Texas ranges. You get the price before the visit.
Slab Leak Detection
- Meter & pressure testing
- Hot/cold line isolation
- Acoustic & thermal pinpointing
- Leak marked on the floor
- Written report with photos
What raises the price
- Larger homes with more lines
- More than one leak
- Very quiet leaks needing tracer gas
- Drain testing (a hydrostatic test is typically about $250)
- After-hours visits
What it doesn’t include
- Breaking or patching concrete
- Pipe repair or rerouting
- Foundation work
- Mold cleanup
We only do detection. You get the exact location and choose who does any repair.
Sources: This Old House, Angi/HomeAdvisor via Bob Vila.
What do I get at the end of a slab leak detection visit in Leander?
The leak's location marked on the floor, which line is leaking (hot, cold or drain), the test readings and photos, and a written summary you can give your insurer or water utility.
How soon does your Leander home need slab leak detection?
Call the same day
- Water coming up through the floor
- Sewer smell inside the home
- Meter spinning fast with everything off
- A large warm or wet area
Shut off the main water valve first.
Book this week
- Meter moves slowly with everything off
- One warm spot on the floor
- Water heater running constantly
- Bill up for a second month
Keep watching
- A single high bill with an explanation
- Hairline cracks with a normal meter test
- Slow drains in one fixture only
Repeat the meter test monthly.
Insurance and slab leaks in Texas
Coverage depends on your policy and the cause. The Texas Department of Insurance has long said the standard HO-B policy covers damage to the dwelling, including the foundation, from an accidental discharge of water from a plumbing system. Many policies still exclude wear and tear, the pipe itself, and mold.
What helps your claim: shut off the water, protect your belongings, and get the leak documented by a licensed plumber before the adjuster visits.
Ask for a leak credit
Many Texas cities and MUDs credit part of the water lost to a hidden leak once it’s repaired. Most want a paid plumber’s invoice and a request within a set number of days, and allow one credit a year.
Keep your invoice, and call your utility soon after the repair to ask about its rules and deadline.
Questions about slab leaks in Leander?
Still not sure if you have a slab leak? Call and describe what you’re seeing. A licensed plumber will tell you whether it’s worth a visit.
Call (000) 000-0000Is it harder to find a slab leak in Leander because of the rock?
Finding it isn't harder: pressure tests, acoustic listening and thermal imaging work through the slab either way. Reaching the pipe in limestone is slower, which is why an exact location matters so much in Leander.
Do drought and water restrictions cause slab leaks in Leander?
They contribute. When clay dries out during drought, it shrinks and pulls away from the slab, and then swells again after rain. That movement stresses pipes, so leaks often show up when a dry spell ends.
Is slab leak detection harder in Leander because of rock?
Detection itself works the same way: pressure tests, acoustic listening and thermal imaging all read through the slab. Rocky ground west of I-35 makes reaching a pipe slower, which is exactly why pinpointing the exact spot first matters so much.
Can you find a slab leak in Leander without tearing up my floors?
Yes. The plumber pinpoints the leak with pressure tests, acoustic listening and thermal imaging before any concrete is opened. The exact spot is marked on the floor, so any opening afterward can be small and precise.
How long does slab leak detection take in Leander?
Most leaks are located in two to four hours. Complex homes, multiple leaks or drain problems can take longer. You'll get the results, the exact location and a written report before anything is opened.
Do I need to move furniture for slab leak detection in Leander?
Usually only near plumbing walls and where the plumber needs to listen or scan. Clearing access to the water heater, the main shut-off and the water meter speeds things up.
Last updated 2026-10-23