Water Leak Detection
Acoustic listening, thermal imaging and moisture mapping locate hidden leaks behind walls, under floors and underground.
See how it works → 24/7 Emergency Leak Service
Leak Detection That Finds the Source Before It Costs You
Connect with a local leak detection specialist who uses acoustic, thermal and pressure-testing equipment to pinpoint hidden leaks — behind walls, under slabs and underground — without tearing your home apart.
Free connection service. No obligation, no forms.
24/7 emergency line
Non-invasive detection
Local specialists
Non-invasiveNo guesswork demolition
24/7 responseNights, weekends, holidays
Active leak or burst pipe?
Shut off the main water valve, then call (888) 239-9523 — someone answers around the clock.
Leak Detection Services
Find the Leak. Fix the Cause.
From a dripping water heater to a slab leak under the foundation, connect with a specialist who carries the equipment for the job.
Slab Leak Detection
Warm floors, a creeping water bill or a damp slab edge can signal a leak beneath your foundation. Pinpoint it before excavation.
See how it works →
Burst Pipe Repair
Water is flowing where it shouldn't. Get connected to emergency help, shut-off guidance and permanent repair options.
Emergency steps →
Water Line Repair
Wet patches in the yard, a spinning meter or falling pressure often point to the main service line between the street and home.
See how it works →
Pool & Spa Leak Detection
Losing more than a quarter inch of water a day? Pressure testing and dye testing separate evaporation from a real leak.
See how it works →
Emergency Leak Service
Active leaks get worse by the hour. Reach a live person day or night and get connected to the nearest available specialist.
Call the 24/7 line →
How It Works
From First Call to Leak Located
No directories, no quote forms, no waiting for an email back. One call gets you to a local specialist.
Call the 24/7 line
Tell us where the water is showing up — ceiling stain, warm floor, spinning meter, soggy yard. We'll ask a few quick questions to route you correctly.
Get matched locally
You're connected with a leak detection professional serving your city who has the equipment for your type of leak.
Leak located, repair planned
The specialist isolates the system, pinpoints the leak and explains repair options before any wall, floor or slab is opened.
Warning Signs
Signs You Have a Hidden Water Leak
Hidden leaks rarely announce themselves. By the time water reaches a ceiling or floor, it has usually been running for weeks. These are the signals worth acting on:
- Water bill jumped with no change in usage
- Sound of running water when everything is off
- Warm or damp spots on the floor
- Musty smell or mold near baseboards
- Water stains on walls or ceilings
- Cracks appearing in drywall or slab
- Water meter spinning with fixtures off
- Unexplained drop in water pressure
Want to check the meter yourself first? Read our step-by-step guide: how to test for a water leak with your meter.
Service Areas
Find Leak Detection Near You
Local leak detection specialists across all 50 states. Search a featured city or browse the full directory.
New York, NY
Los Angeles, CA
Chicago, IL
Houston, TX
Phoenix, AZ
Philadelphia, PA
San Antonio, TX
San Diego, CA
Dallas, TX
Austin, TX
San Jose, CA
Jacksonville, FL
Fort Worth, TX
Columbus, OH
Indianapolis, IN
Charlotte, NC
Seattle, WA
Denver, CO
Washington, DC
Nashville, TN
Oklahoma City, OK
El Paso, TX
Las Vegas, NV
Boston, MA
Detroit, MI
Portland, OR
Memphis, TN
Louisville, KY
Baltimore, MD
Milwaukee, WI
Albuquerque, NM
Tucson, AZ
Fresno, CA
Sacramento, CA
Mesa, AZ
Atlanta, GA
Miami, FL
Kansas City, MO
Honolulu, HI
Saint Paul, MN
FAQ
Leak Detection Questions, Answered
Common signs include unusually high water bills, the sound of running water when fixtures are off, warm or damp spots on floors, water stains on walls or ceilings, mold or mildew growth, and dropping water pressure. A professional leak detection inspection can pinpoint the source without opening walls or floors.
Slab leak detection is the process of finding a water leak in the pipes that run beneath a concrete foundation. Specialists use acoustic listening equipment, thermal imaging and pressure isolation to locate the leak without breaking through the slab.
Yes. Professional leak detection is non-invasive. Acoustic microphones, thermal imaging cameras, tracer gas and electronic moisture meters can locate leaks behind walls, under floors and underground, so repairs can be targeted instead of exploratory.
Shut off the main water valve immediately, switch off electricity to flooded areas if it is safe to do so, and move valuables away from the water. Document the damage for insurance, then call a leak specialist for emergency repair. Avoid using electrical appliances in standing water.
The Leak Detection Pros phone line is answered 24 hours a day, including weekends and holidays. Call (888) 239-9523 and describe where the water is appearing so you can be connected with a local specialist. Response and scheduling depend on your market and technician availability.
Costs vary by leak type, location and the detection method needed. Many local specialists provide an estimate before work begins. Call (888) 239-9523 to describe your situation and ask about pricing in your area. The connection service itself is free to homeowners.
Most residential leak inspections take between one and three hours. Slab leaks, underground lines and intermittent leaks can take longer because the specialist may need to isolate sections of plumbing and monitor pressure. The specialist should explain findings and next steps on site.