Licensed techs find hidden slab leaks before your foundation moves

Foundation Leak Detection in Houston That Stops Cracks Early

Foundation Leak Detection in Houston is the fastest way to catch a slab leak before it cracks your foundation, warps floors, or spikes your water bill. We run acoustic listening devices, thermal imaging cameras, and pressure testing gauges to pinpoint the leak, then repair the line and verify it holds. If you live in River Oaks, The Heights, or anywhere across Harris County and your floors feel warm or your bill jumped, call us at 832-839-4984.

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Leak Detection in Houston: Two leak detection specialists collaborate, one holding a pipe locator to the ground, while the
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About this service

What Foundation Leak Detection in Houston Actually Involves

Foundation Leak Detection in Houston is the process of finding water escaping from supply or drain lines buried under or inside your slab before that water erodes soil and cracks the concrete. We start with a pressure testing gauge on the main line to confirm you have a leak, then use an acoustic listening device to hear the water escaping and a thermal imaging camera to map temperature differences under the floor. Once we know the location, we mark it, open the slab, repair the copper pipe or PEX tubing, and pressure test again to prove the fix.

Houston's clay soil swells when it rains and shrinks in summer drought, and that constant movement stresses buried pipes until pinhole leaks turn into slab leaks. A foundation leak repair Houston TX homeowners call us for usually starts with a high water bill, a hot spot on the floor, or the sound of running water when nothing is on. If you have been searching for foundation leak Detection near me Houston, we serve the 77027, 77069, and 77068 ZIP codes with same-day diagnostics and 24/7 emergency response.

  • ✓ Stop Foundation Movement
  • ✓ Cut Your Water Bill Fast
  • ✓ Protect Floors and Cabinets
  • ✓ Avoid Mold and Air Quality Issues
What's included

What Our Foundation Leak Detection Includes

Every foundation leak detection visit includes a full diagnostic, a written repair plan, and a pressure test to confirm the fix. If we cannot find the leak, you do not pay the diagnostic fee. Here is what you get.

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Full Pressure Test

We isolate the supply and drain systems with a pressure testing gauge and hydrostatic test pump to confirm you have a leak and identify which system is failing. This step takes 20 to 40 minutes and tells us exactly where to focus.

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Acoustic and Thermal Scan

We walk the slab with an acoustic listening device and confirm the location with a FLIR thermal imaging camera. On hard-to-find leaks, we bring in a tracer gas detector or pipe inspection camera. You see the marked spot before we open anything.

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Written Repair Plan

You get a written summary of what we found, where the leak is, and what it takes to fix it. The price is flat-rate and quoted before we start. No hourly surprises, no change orders halfway through the job.

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Pipe Repair and Pressure Test

We open the slab at the marked location, repair the copper pipe, PEX tubing, or PVC pipe with new fittings and solder or epoxy pipe repair, then pressure test again to prove the repair holds. Most repairs take two to four hours.

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Concrete Patch and Cleanup

We backfill the excavation, patch the concrete, and leave the area clean. You get photos of the before and after, plus a note on what to watch for if foundation movement was already underway.

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Workmanship Warranty

Every foundation leak repair we do is backed by a written workmanship warranty. If the repair fails within the warranty period, we come back and make it right at no charge. We stand behind the work because we pressure tested it before we left.

How it works

How Our Foundation Leak Detection Process Works

01

Phone Triage

You call 832-839-4984 and describe what you are seeing: high bill, warm floor, sound of running water, or a crack that appeared last month. We ask a few questions to narrow it down and schedule a same-day or next-morning visit. For active flooding or a burst pipe, we roll a truck 24/7 across Houston and Harris County.

02

Pressure Test

We shut off the main and connect a pressure testing gauge to isolate the supply system. If the gauge drops, you have a supply-side leak. If it holds, we test the drain lines with a hydrostatic test pump. This step takes 20 to 40 minutes and tells us which system to focus on before we open anything.

03

Acoustic and Thermal Scan

We walk the slab with an acoustic listening device to hear the water escaping, then confirm the spot with a thermal imaging camera. On hard-to-find leaks, we introduce a tracer gas detector or run a pipe inspection camera through the drain. We mark the floor with tape so you can see exactly where the problem is.

04

Repair and Verify

We open the slab at the marked location, repair the copper pipe, PEX tubing, or PVC pipe with new fittings and solder or epoxy pipe repair as the situation calls for. Then we pressure test again and run water through the line to confirm the repair holds. Most repairs take two to four hours from open to close.

05

Cleanup and Report

We backfill, patch the concrete, and leave the area clean. You get a written summary of what we found, what we repaired, and photos of the before and after. If we found evidence of foundation movement, we tell you what to watch for and whether a foundation specialist should take a look.

Tools & methods

Tools and Methods We Use

Purpose-built equipment, used by trained technicians — so the job is done accurately the first time.

Acoustic Listening Device

Picks up the sound of water escaping under a slab from the surface. We walk the floor, mark the loudest point, and confirm with thermal imaging. This is the fastest way to find a slab leak in a Houston home.

FLIR Thermal Imaging Camera

Shows temperature differences under the floor. Hot water leaks glow; cold water leaks show as cool spots. We use it alongside acoustic gear to confirm the leak location before we open anything.

Pressure Testing Gauge

Isolates the supply system and tells us if pressure drops. If it does, you have a supply-side leak. If it holds, we test the drain with a hydrostatic test pump. First step in every job.

Hydrostatic Test Pump

Fills the drain system with water under pressure to find leaks that only show when you use water. Essential for finding drain leaks under a slab, which are harder to locate than supply leaks.

Sewerin Tracer Gas Detector

Introduces a safe tracer gas into the line and traces it to the surface. Works when acoustic and thermal tools cannot pinpoint the leak. Common on long underground runs and water mains.

Pipe Inspection Camera

Runs through drain and sewer lines to show us the inside of the pipe. We see root intrusion, corroded pipes, and breaks in real time. Essential for sewer line leak detection and drain leaks.

Moisture Meter

Confirms whether a leak has spread into walls, cabinets, or carpet. We use it to check the area around the leak and make sure we are not leaving hidden moisture behind that will turn into mold.

Real results

Before and after.

Slab Leak Under Kitchen in Bellaire

Before

A Bellaire homeowner noticed the water bill jumped from $95 to $340 in one month. The kitchen floor felt warm near the sink, and a crack had appeared above the pantry door. We pressure tested the slab, found a hot water leak under the kitchen, and confirmed it with thermal imaging.

After

We opened a 2-foot section of slab, replaced 18 inches of corroded copper pipe, and pressure tested the line. The repair took three hours. The next water bill was $98, and the crack above the pantry stopped growing. We patched the concrete and left the kitchen clean.

Pinhole Leak in The Heights Bungalow

Before

A 1930s bungalow in The Heights had a musty smell near the baseboards and a soft spot in the hallway floor. The homeowner had not seen a water bill spike yet. We used a moisture meter and acoustic listening device to find a pinhole leak in a copper supply line under the hallway.

After

We repaired the copper pipe with a new section and soldered fittings, then pressure tested the line. The soft spot was dried and repaired. The musty smell cleared within a week. Total job time was four hours, and the repair cost less than $900.

Irrigation Leak Causing Foundation Crack in Katy

Before

A Katy homeowner had a stair-step crack in the brick above the garage. A foundation company quoted $12,000 for piers. We pressure tested the slab, found no leak, then tested the irrigation system and found a broken zone line soaking the soil next to the foundation.

After

We repaired the irrigation line for $380 and adjusted the zone to stop overspraying the foundation. The soil dried out over three weeks, and the crack stopped moving. The homeowner saved $11,620 by fixing the water source first.

Problems we solve

Foundation Leak Problems We Solve in Houston

Most foundation leaks in Houston start small and get expensive fast. Here are the problems we see every week and how we fix them.

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01

Water bill jumped 30 percent or more with no change in usage

We pressure test the supply line, find the leak with acoustic and thermal tools, and repair the pipe the same day. Your next bill reflects the fix. We also check for irrigation and pool leaks so you are not chasing the wrong problem.

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02

Warm spot on the floor or sound of running water when everything is off

We use a thermal imaging camera to map the hot spot and an acoustic listening device to confirm the leak location. Then we open the slab, repair the copper pipe, and pressure test. Most jobs are done in a day, and we patch the concrete before we leave.

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03

Cracks appearing above doors, in brick, or along the slab edge

We find and repair the leak first, because foundation repair without fixing the water source is a waste of money. After the repair, we tell you whether the crack needs a structural engineer. Catching it early usually stops the movement.

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04

Musty smell near baseboards or mold appearing on walls

We use a moisture meter to confirm the leak has not spread into the wall assembly, repair the pipe, and dry the area before we close it up. If mold is already present, we tell you what to do next. Fast action keeps the air in your home clean.

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Transparent pricing

Foundation Leak Detection Pricing in Houston

$180 - $2,800 depending on diagnostic and repair scope

Foundation leak detection in Houston runs $180 to $450 for the diagnostic, and we credit that fee toward the repair if you approve the work. The repair itself typically runs $650 to $2,800 depending on whether we open a slab, reroute a line, or replace a section of pipe. Emergency calls after hours add a dispatch fee. You get the full price in writing before we start. We quote affordable foundation Leak Detection Houston TX customers can budget for, and we do not charge for the diagnostic if we cannot find the leak. Typical 2026 pricing in this area reflects the cost of the tools and the time it takes to do the job right.

You are paying for the tools and the experience to find the leak on the first visit. A wrong guess costs more in demolition and foundation repair than the diagnostic ever will. We pressure test every repair before we leave, and the work is warrantied.

01Access to the Leak

A leak under an open floor is easier to reach than one under cabinets, tile, or a built-in. If we have to move appliances or cut through finished flooring, the labor goes up. We tell you before we start.

03Supply vs. Drain Leak

Supply leaks are under constant pressure and easier to find. Drain leaks only show when you use water, so they take longer to locate. Drain repairs also often require a pipe inspection camera and more excavation.

04Slab Opening Size

A small pinhole leak needs a 2-foot opening. A broken line under a long run may need 6 feet or more. The size of the opening affects the concrete patch and the cleanup time.

Proof you can check

Licensed, Insured, and Reviewed

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Texas State Board of Plumbing Examiners LicenseTexas State Board of Plumbing Examiners
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Backflow Prevention Assembly Tester CertificationTexas Commission on Environmental Quality
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IAPMO MembershipInternational Association of Plumbing and Mechanical Officials
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OSHA Safety ComplianceOccupational Safety and Health Administration
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EPA WaterSense PartnerU.S. Environmental Protection Agency
Customer reviews

What Houston Homeowners Say

★★★★★
“Our water bill went from $110 to $380 in one month and we could not find the leak. Leak Detection The Heights came out the same day, used a thermal camera and an acoustic listener, and found a slab leak under the dining room in about 40 minutes. They repaired the copper pipe, pressure tested it, and patched the floor. Bill is back to normal.”
MG

Maria G.Homeowner, River Oaks

✓ Verified
★★★★★
“We had a crack above the garage door and assumed it was foundation. They pressure tested the slab, found a leaking irrigation line soaking the soil, and fixed it the same visit. Saved us thousands on foundation repair. They also showed us photos of the repair and explained how to keep an eye on the crack. Honest work.”
PS

Priya S.Homeowner, Katy Area

✓ Verified
Good questions

Frequently Asked Questions

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Most foundation leak detection jobs in Houston run $180 to $450 for the diagnostic, and that fee is credited toward the repair if you approve the work. The repair itself typically runs $650 to $2,800 depending on whether we are opening a slab, rerouting a line, or replacing a section of copper pipe. Emergency calls after hours add a dispatch fee. You get the full price before we start.

The five signs we hear most are a water bill that jumped 30 percent or more, a warm spot on the floor, the sound of running water when everything is off, cracks appearing above door frames, and a musty smell near baseboards. If you see two or more of those, call us. We confirm with a pressure testing gauge and thermal imaging camera the same day.

You want a licensed plumbing contractor with leak detection equipment, not a foundation company. Foundation crews repair concrete, but they do not repair the pipe causing the problem. Leak Detection The Heights holds a Texas State Board of Plumbing Examiners license and handles both the detection and the pipe repair. Call 832-839-4984 and we will take it from there.

Yes. Water escaping under a Houston slab softens the clay soil, and the foundation loses support in that area. You will see stair-step cracks in brick, diagonal cracks above interior doors, and doors that stick. Catching the leak early usually stops the movement. If the crack is already wider than a quarter inch, we recommend a structural engineer after we repair the pipe.

Ready when you are

Get Foundation Leak Detection in Houston Today

If your water bill jumped, your floor feels warm, or you hear water running when nothing is on, call us now. We are licensed, insured, and we carry the tools to find the leak on the first visit. Same-day and 24/7 emergency service across Houston and Harris County.

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Request an appointment

Get a Houston Leak Detection Quote

Call us at 832-839-4984 or send an email and we will get back to you fast. We answer the phone 24/7 for emergencies and schedule standard detections same day or next day across Houston and Harris County. Tell us what you are seeing and we will give you a flat detection price over the phone.

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