Slab Leak Detection & Repair
in Dallas-Fort Worth

If you suspect a water leak beneath your home, you need expert slab leak detection and repair in Dallas-Fort Worth immediately. A slab leak occurs when the water or sewer lines running beneath your concrete foundation crack or break. If ignored, it can wash away the supporting soil, leading to severe structural damage and thousands of dollars in repairs.

We are Quality Foundation and Plumbing, a dual-licensed contractor holding both a General Contractor License (#TL-GC-002004) and a Master Plumber License (MP-37229). That combination matters here because a slab leak sits exactly on the line between plumbing and structural work. Most companies only see half the problem. We see both halves, because we are licensed to fix both. Call 214-335-9437 or request a free slab leak estimate.

Signs You Have a Slab Leak

Slab leaks rarely announce themselves with a visible puddle. The signs are subtle at first, and they show up on both the plumbing side and the structural side at the same time. The most reliable warning signs come in pairs:

• A rising water bill with no obvious explanation, paired with new or widening cracks in drywall, brick veneer, or the slab itself. A sudden bill spike alone might be a running toilet, but combined with fresh cracking, it points to water escaping under the house.
• A warm spot on the floor paired with doors or windows that suddenly start sticking. Warm spots usually mean a hot-water line is leaking; sticking doors mean the frame has shifted out of square.
• Damp or discolored flooring paired with a visible slope in the floor. Wet carpet or curling vinyl tells you where water is present; a sloped or bouncy floor nearby tells you the slab has already started to move.
• The sound of running water when all fixtures are turned off, musty odors, or unexplained mold growth.
• A sudden drop in water pressure, or multiple drains slowing at once.

If you are only seeing the plumbing-side signs without any structural signs yet, that is the best time to call. You can often catch and fix the leak before the clay underneath has moved enough to crack the slab. Learn more about the warning signs of foundation problems in North Texas.

How We Detect Slab Leaks

Finding a leak under concrete requires specialized equipment and a systematic process. We do not guess, and we do not break open your floor to search. Here is how we pinpoint a slab leak:

• Hydrostatic pressure test. We isolate sections of the plumbing system and pressurize them to see whether pressure holds or drops. This tells us whether there is an active leak and roughly which line it is on.
• Acoustic listening equipment. Electronic listening devices amplify the sound of water escaping under pressure, letting us narrow the leak to a specific area without opening concrete.
• Infrared thermal imaging. A thermal camera detects temperature differences in the floor surface caused by hot-water line leaks, helping confirm the location.
• Camera inspection. When useful, we feed a waterproof camera through the line to visually confirm the condition of the pipe and the exact point of failure.

This combination keeps the access opening small and targeted instead of exploratory. The detection report is also useful later for insurance questions or for showing a buyer what was done.

Slab Leak Repair Options

Once we have pinpointed the leak, we discuss the best repair method. There are three main approaches, and the right one depends on where the leak sits, what is on top of it, and how old the pipe is.

Direct Access (Breaking Through the Slab)

We locate the leak, cut and jackhammer through the concrete from inside the house, dig down to the pipe, repair or replace that section, then pour the concrete back. This is the right call when the leak is shallow, close to an exterior wall or an accessible interior area, and the flooring above it is inexpensive or already damaged. It is the wrong call when there is travertine, hardwood, or a kitchen island over the leak.

Pros: Fastest and often cheapest for accessible leaks. Cons: Destroys flooring above the leak, creates dust and noise, and the affected rooms are unusable for days.

Tunneling Under the Slab

We dig from outside the house, under the foundation, and work our way to the pipe from below. Your floors never get touched. Tunneling wins when the leak is deep, far from an exterior wall, or under flooring that is expensive or impossible to match. It also wins when the repair is extensive, such as replacing a run of drain line rather than patching one spot.

Pros: No flooring damage, no interior dust, you can usually stay in the home. Cons: Higher labor cost, and every foot from the exterior wall to the leak is billable.

Rerouting or Repiping

Instead of repairing the pipe under the slab, we abandon that section and run a new line overhead through the attic and down through interior walls, or replace the supply system entirely. Reroute when the pipe itself is the problem, not just one spot in it. If you have had two slab leaks in three years on the same copper supply system, a third is coming. Learn more about PVC pipe replacement.

Pros: Gets the water out from under the slab permanently. Cons: Higher upfront cost; not an option for drain and sewer lines, which rely on gravity and cannot go overhead.

Slab Leak Repair Cost in Dallas

Slab leak detection in DFW typically runs $150 to $600, and the repair itself ranges from a few hundred dollars for a simple, accessible fix to $8,000 or more for tunneling or a full reroute. Which of the three access methods you need is what moves that number. For a full breakdown of detection costs, tunneling per-foot pricing, and reroute ranges, see our slab leak repair cost guide. We provide upfront, transparent estimates before any work begins.

Does Insurance Cover Slab Leaks?

Partly. Most Texas homeowners policies cover the sudden and accidental release of water, which means they often pay for tearing out and replacing the slab to reach the leak, plus the resulting water damage to floors, walls, and belongings. What they typically do not cover is the pipe repair itself, standalone leak detection, or anything ruled wear and tear or long-term seepage. Document everything from day one: photos, the water bill spike, the detection report. For the full picture on Texas claims, read our guide on whether homeowners insurance covers foundation repair in Texas.

Slab Leak Repair in Dallas

We are based right here in Dallas, and most of our slab leak work is in the older neighborhoods where cast iron drain lines and aging copper supply lines are starting to fail under the slab. If you are seeing any of the signs above, our slab leak repair in Dallas page walks through the specific neighborhoods, the detection process, and what repair options make sense for a Dallas home.

Slab Leak Repair in Fort Worth

We serve Fort Worth and all of Tarrant County. The geology shifts west of Dallas: homes in Fort Worth sit on a mix of Eagle Ford shale and limestone formations that move differently than the Blackland Prairie clay under Dallas. That can mean a different pier depth and a different repair approach. A slab leak in Fort Worth gets the same dual-licensed treatment: we find it, fix the pipe, and check whether the slab above it has moved. See our Fort Worth foundation repair page for more on Tarrant County soil and housing.

Areas We Serve

We provide slab leak detection and repair across the entire Dallas-Fort Worth Metroplex, including:

• Dallas
• Fort Worth
• Frisco
• McKinney
• Allen
• Garland
• Rockwall
• Richardson
• Mesquite
• Prosper
• Sachse
• Murphy
• Wylie
• Celina

Licensed and Insured Experts

As a dual-licensed contractor (Master Plumber License MP-37229 and General Contractor License #TL-GC-002004), we understand how plumbing leaks affect your foundation and vice versa. We ensure that your home is structurally sound and completely watertight. Contact us for an immediate assessment.

Frequently Asked Questions