Plumbing · Dallas–Fort Worth, TX
Professional Water Leak Detection in Dallas–Fort Worth
Somewhere between the meter and your fixtures, water is escaping. We find exactly where — with instruments, not exploratory demolition.
- Licensed & insured
- Upfront flat-rate pricing
- Same-day appointments

Quick answer
Plumber Service TX locates hidden water leaks throughout Dallas–Fort Worth using acoustic listening equipment, thermal imaging, pressure isolation and tracer methods. Signs you need detection: a water bill that rose without explanation, a meter that moves with everything off, warm floor spots, musty odors, or unexplained damp patches. Detection pinpoints the leak before any repair opening is made.
The Ten-Minute Test Every Homeowner Can Run First
Before booking anyone, confirm the leak at your meter. Turn off every fixture and water-using appliance, then watch the meter’s low-flow indicator (a small triangle or star dial). If it moves with everything off, water is leaving your system somewhere. Note the reading, wait 30 minutes without using water, and read again — the difference is your leak’s rate.
Next, halve the search: shut the valve on your water heater‘s cold inlet. If the meter stops, your leak is on the hot side — consistent with warm floor spots and the most common DFW slab-leak pattern. If it keeps moving, the cold side or yard line is suspect. Email us those findings and detection starts a step ahead.

How We Pinpoint What You Can’t See
Isolate the zone
Pressure testing and valve isolation narrow the leak to a system: hot vs cold, interior vs yard line, supply vs irrigation.
Listen
Pressurized water escaping makes a signature sound; ground microphones and acoustic sensors triangulate it through slab and soil.
Image
Thermal cameras reveal hot-line leaks through flooring and walls as clear heat plumes — evidence you can see on screen.
Mark and report
The leak location is marked physically, typically within a foot or two, and you receive a written findings report with repair options priced flat-rate.
Why Precision Pays for Itself
The cost of a leak is rarely the water — it’s the finding. A repair crew without a located target opens flooring and drywall on educated guesses, and every wrong guess is a repair bill of its own. Instrument-located leaks turn that into one surgical opening at the right spot. On yard lines, precision means one small excavation instead of a trench; under slabs, it’s the difference between lifting one square of flooring and lifting a room. Detection isn’t an add-on fee — it’s the cheapest part of the job done first.
Related Plumbing Services
Water Heaters
Repair, replacement and new installs for gas and electric water heaters — sized right for Texas households.
View service →Tankless Water Heaters
Endless hot water and lower energy bills with professionally installed on-demand systems.
View service →Tank Water Heaters
Fast, code-compliant tank water heater replacement in 40, 50 and 75-gallon sizes.
View service →Emergency Plumbing
Burst pipes, sewage backups and no-water emergencies handled fast, day or night.
View service →Burst Pipe Repair
Rapid shut-off, pipe repair and damage control when a line lets go inside your home.
View service →Repiping
Whole-home PEX and copper repipes that end recurring leaks in aging DFW homes.
View service →Serving the Dallas–Fort Worth Metroplex
Our dispatch teams in Fort Worth, Frisco and Southlake cover both sides of the metroplex, so a technician is never far away.
- Arlington, TX
- Fort Worth, TX
- Frisco, TX
- Southlake, TX
- Dallas, TX
- Plano, TX
- Irving, TX
- Grapevine, TX
Water Leak Detection — Frequently Asked Questions
How do I know if I have a hidden water leak?
The reliable tells: a water bill trending up without usage change, the meter’s leak indicator moving with all fixtures off, warm spots on floors, mildew or musty smell in one area, unexplained damp carpet or wall stains, and the sound of water in quiet rooms. Any of these justifies detection.
How much does leak detection cost in DFW?
A flat, written price quoted before the visit — and it’s credited toward the repair if you proceed with us. Compared to exploratory demolition at drywall-repair prices per wrong guess, instrument detection is the economical path, not the premium one.
How accurate is electronic leak detection?
On pressurized supply lines, typically within one to two feet — accurate enough that repair openings are surgical. Accuracy depends on pipe depth, material and noise conditions, which is why we combine acoustic, thermal and pressure methods rather than relying on any single instrument.
Can you find leaks under concrete slabs?
Yes — slab leaks are the most common detection call in North Texas. Acoustic ground microphones hear the leak through the slab, thermal imaging confirms hot-side leaks through flooring, and line tracing maps the pipe’s actual route before anything is opened. See our slab leak repair service for what happens next.
My water bill doubled but I see no water anywhere. How?
Underground and under-slab leaks can run for months invisibly — water follows soil paths away from the house or evaporates below flooring. Yard-line leaks between meter and house are notorious for this. The meter test confirms it; detection finds it.
Do you detect irrigation and pool leaks too?
Yes. Irrigation systems are frequent hidden-loss culprits (test: does the meter stop when the irrigation backflow valve is closed?), and pool auto-fill lines mask leaks by quietly topping off the loss. Both are isolatable and locatable.
Is a leaking yard line my responsibility or the city’s?
From the meter to your house is yours; the meter and everything street-side is the utility’s. Our detection establishes definitively which side the leak is on — and when it’s the city’s, our written findings give you exactly what you need to hand them.
What happens after you find the leak?
You get the location marked, a written findings report, and flat-rate repair options — spot repair, reroute or repipe depending on pipe condition. No obligation to repair with us, though the detection fee credits toward the work if you do.
Need water leak detection in DFW today?
Email service@plumberservicetx.com and our dispatch team will confirm your same-day or next-day appointment window.