Slab Leak Detection
Before You Break Concrete
Warm floor tiles, a water heater that never rests or cracks spreading across flooring? Our slab leak detection pinpoints leaks beneath concrete so only a small, precise opening is needed.
Slab Leak Detection for Homes Built on Concrete Foundations
Millions of homes are built directly on concrete slabs, with copper or other water lines running through or beneath the concrete. Over time, those pipes can develop pinhole leaks from corrosion, abrasion where they rub against concrete or gravel, poor original installation or soil movement that bends and stresses them. Once a leak starts, water has nowhere to go but into the soil beneath your home. It can run for months, quietly eroding support and soaking flooring from below.
Finding a slab leak without breaking the floor in the wrong place requires specialized equipment and experience. Our technicians begin by isolating hot and cold lines and pressure testing each one to confirm which is leaking. On hot water lines, thermal imaging often shows a warm spot on the floor. Sensitive acoustic microphones then pick up the hiss of water escaping under pressure through the concrete. Line tracing maps the pipe route, and the leak is marked precisely for repair.
Slab Leak Detection Services We Provide
Locating a leak beneath concrete takes several tools working together. We combine these methods to confirm, trace and pinpoint the leak, then advise on the most sensible repair approach for your home.
Pressure Testing
Isolate hot and cold lines to confirm which one is leaking.
Thermal Imaging
Reveal warm spots on floors above leaking hot water lines.
Acoustic Listening
Hear escaping water through solid concrete with sensitive ground microphones.
Line Tracing
Map the exact route of pipes running beneath the slab.
Leak Marking
Mark the precise repair spot to keep concrete cutting to a minimum.
Repair Options
Compare spot repair, rerouting and repiping based on your pipe's condition.
Warning Signs of a Leak Beneath Your Concrete Slab
Hot spots on the floor are one of the most distinctive signs. If a section of tile or concrete feels noticeably warm under bare feet, a hot water line beneath it may be leaking. Another clue is a water heater that runs far more than usual, since it’s constantly reheating water lost through the leak. You may also hear running water beneath the floor when every fixture is off, or notice your water bill climbing steadily without explanation.
As slab leaks continue, damage becomes visible. Carpet may feel damp, hardwood can cup or buckle, and laminate may swell at the seams. Cracks can appear in tile, drywall or the slab itself as soil beneath shifts. Mildew smells, mold along baseboards and low water pressure throughout the house are further warning signs. Because these symptoms can take months to appear, catching a slab leak early makes a big difference to repair costs.
Why Homeowners Trust Our Slab Leak Detection
Breaking concrete in the wrong place is expensive and disruptive, so accuracy matters more with slab leaks than almost any other plumbing problem. Licensed and insured, our team layers several detection methods to cross-check results before marking a location. We explain what each test showed and why we’re confident in the spot. You’ll also get honest advice about whether a spot repair makes sense or whether your pipes are aging badly enough that rerouting is wiser.
Fast Service
Quick and Reliable Plumbing Services.
Qualified Team
Skilled and Certified Plumbers at Your Service.
Affordable Price
Competitive Quality Plumbing Solutions.
150+ Project Done
Our Track Record of Excellence.
Benefits of Early Slab Leak Detection
Detecting a slab leak early limits the water that saturates the soil beneath your home, reducing the risk of erosion and foundation movement. It protects flooring and baseboards from swelling, cupping and mold. Accurate location keeps concrete cutting small, lowering repair and restoration costs. You’ll stop paying to heat and lose water that never reaches a faucet. And documented findings support insurance claims, which often cover access and resulting damage.
Slab Leak Detection in CA, TX and FL
Slab foundations dominate housing across much of California, Texas and Florida. Expansive Texas clay, shifting California soils and sandy Florida ground each stress buried pipes in different ways, and our technicians understand all three.
Why Slab Leaks Happen in the First Place
Slab leaks rarely have a single cause. Several factors usually combine over years before a pipe finally gives way beneath the concrete.
Corrosion is common in copper lines, particularly with aggressive water chemistry, leading to pinholes from the inside out. Abrasion occurs where pipes vibrate or expand against concrete, gravel or other pipes. Hot water lines expand and contract with every use, wearing through more often than cold lines.
Soil movement adds stress, especially in expansive clay that swells when wet and shrinks when dry, or in areas with settling fill. Poor installation, such as kinked pipes or weak joints under the slab, can also fail decades later. Knowing the cause guides whether to patch or reroute.
How Our Slab Leak Detection Works
Describe your symptoms, such as warm floors, sounds or a rising bill. We’ll check your water meter early in the visit to confirm water loss.
Your technician isolates the hot and cold systems and pressure tests each one. Thermal imaging scans the floor for temperature anomalies, while acoustic equipment listens for escaping water through the slab. The pipe route is traced, and readings from each method are compared until the leak is located and clearly marked.
You’ll receive a written report with the leak location, likely cause and photos. We then explain repair options, including direct spot repair through a small opening, rerouting the line overhead or through walls, or repiping if the system is failing broadly. Repairs can usually be scheduled quickly.
Suspect a Slab Leak? Call Us Today
Warm floors or a mystery water bill? Call our licensed technicians for slab leak detection that finds the leak precisely and keeps concrete cutting to a minimum.
Slab Leak Detection Questions Answered
What does a slab leak feel like?
Often a warm spot on tile or concrete floors when a hot water line is leaking, along with dampness, new cracks or water you can hear moving.
Can a slab leak damage my foundation?
Over time, yes. Water saturating the soil can cause erosion or swelling that contributes to foundation movement, which is why early detection matters.
How accurate is slab leak detection?
Using multiple methods together, experienced technicians can usually pinpoint slab leaks to a small area, keeping concrete openings as small as possible.
Is rerouting better than breaking the slab?
Sometimes. If pipes are aging or multiple leaks are likely, rerouting through walls or attics avoids future slab work. A single leak may suit spot repair.
Does insurance cover slab leaks?
Many policies cover access to the leak and resulting water damage, though not always the pipe itself. Review your coverage and save our written findings.