Santa Clara County · Detection
Pinpoint hidden leaks under concrete foundations without breaking up the whole slab.
The Baxter Family in Cambrian Park, San Jose noticed mildew smell or unexplained humidity in ground-floor rooms and wasn't sure how serious it was. San Jose's neighborhoods split fairly cleanly between older ranch-style slab homes from the 1950s-60s in areas like Cambrian Park and Willow Glen, and much newer construction from the region's growth boom, which means slab leak calls here skew heavily toward the older ranch stock where original copper is now well past 60 years old. No work beyond the single marked spot was needed, which kept the repair fast to schedule.
— The Baxter Family, Cambrian Park, San Jose
San Jose's neighborhoods split fairly cleanly between older ranch-style slab homes from the 1950s-60s in areas like Cambrian Park and Willow Glen, and much newer construction from the region's growth boom, which means slab leak calls here skew heavily toward the older ranch stock where original copper is now well past 60 years old.
Water service in San Jose is provided by San Jose Water Company, 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 Willow Glen, Almaden Valley, Rose Garden to Berryessa, Cambrian Park, Evergreen, we handle slab leak detection calls across San Jose, 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.
“We had slow drains for weeks and figured it was just old pipes. Camera inspection showed root intrusion about 30 feet out. Clear video, clear explanation, no surprises.”
“Solid, professional service. Arrived within the scheduled window and walked me through the sewer camera footage on the spot so I understood exactly what was going on.”
“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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