Fresno County · Detection
Pinpoint hidden leaks under concrete foundations without breaking up the whole slab.
When Waverly K. in Tower District, Fresno called about the sound of running water when every fixture in the house is off, a technician got out the same week. Fresno's Central Valley clay soil expands and contracts dramatically between the region's bone-dry summers and wet winter months, and combined with the city's older Tower District and Fig Garden homes built on original 1950s-60s slab construction, that seasonal soil movement is one of the most common triggers for slab leaks we see here. A problem that had been dragging on for months was pinpointed in under two hours.
— Waverly K., Tower District, Fresno
Fresno's Central Valley clay soil expands and contracts dramatically between the region's bone-dry summers and wet winter months, and combined with the city's older Tower District and Fig Garden homes built on original 1950s-60s slab construction, that seasonal soil movement is one of the most common triggers for slab leaks we see here.
Water service in Fresno is provided by the City of Fresno Department of Public Utilities, and confirming whether an issue is on your private plumbing or the utility side of the meter is one of the first things we check.
A slab leak happens when a hot or cold water line running beneath your home's concrete foundation develops a crack, pinhole, or corrosion failure. Left alone, it can warp flooring, feed mold behind walls, and quietly inflate your water bill for months. Our technicians use acoustic listening equipment, infrared thermal cameras, and static pressure testing to find the leak's exact position before a single inch of concrete is opened.
Because slab leaks are hidden under structural concrete, guesswork digging is expensive and destructive. We combine electronic amplification with thermal imaging to narrow the leak to a small, marked area, so any follow-up access work is as limited and targeted as possible.
A hot spot on the floor, or one area of carpet or tile that's always warmThe sound of running water when every fixture in the house is offA water meter that keeps spinning with all taps closedUnexplained cracks in flooring, drywall, or the foundation itselfMildew smell or unexplained humidity in ground-floor roomsA steadily climbing water bill with no change in household usageFrom Tower District, Woodward Park, Fig Garden to Sunnyside, Bullard, Old Fig Garden, we handle slab leak detection calls across Fresno, matching the approach to each property's age, soil, and layout.
Call or request an appointment online. Same-day slots are available across California for active leaks.
A technician arrives with acoustic listening equipment, thermal imaging, and pressure or camera tools matched to your specific leak type.
The leak's exact location is marked and explained to you in plain terms, so nothing gets opened up on a guess.
You receive a written diagnostic report you can hand to your plumber, restoration team, or insurance company, with repair or fix options discussed on the spot.
“Our irrigation system was losing water and we assumed it was just old sprinkler heads. Turned out to be a leak in the underground line itself. Glad we called before digging up the whole yard ourselves.”
“Hard water here does a number on pipes. They found a pinhole leak in a joint I never would've guessed. Quick, respectful of the property, and didn't leave a mess.”
“The floor in our hallway had a warm spot for weeks. They found the slab leak in under an hour with the listening equipment and marked a tiny area instead of tearing up the whole hallway. Huge relief.”
“Our water bill jumped for two months straight and we couldn't find why. Turned out it was a slow leak behind the water heater. Professional, on time, and explained everything on the spot.”
“Salt air had corroded a fitting outside near the meter box. They traced it with the acoustic equipment without digging up my whole side yard first. Appreciated the straightforward report.”
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