Slab Leak Repair in San Bernardino, CA

Clues that point under the floor

• The meter dial or flow indicator keeps turning when no one is using water
• A patch of tile or laminate feels noticeably warm under bare feet
• Carpet or baseboard stays damp along a wall with no plumbing fixture nearby
• A faint rushing sound in a quiet house, often late at night
• The water heater cycles more than it used to, or hot water runs out early
• Fine cracks in tile grout or flooring that lifts in one area

Rule out a running toilet, a dripping hose bib and the irrigation system before assuming the worst.

San Bernardino conditions that matter

Much of the city's housing is older. In ZIP 92404, city-data.com counts about 72% of houses as built in 1979 or earlier, and copper that has sat under a slab for decades can wear through where it rubs against gravel or at a joint made during construction. Many newer neighborhoods have younger pipe, but a single bad fitting can still let go.

SBMWD water is all local groundwater from the Bunker Hill Basin, and its 2025 report lists hardness averaging 242.2 mg/L. That hardness mostly shows up as scale in water heaters and fixtures; the report does not tie it to leaks under floors. SBMWD's FAQ makes the customer responsible for the underground line from the meter to the property, so a break there is a private repair. For a leak at the meter or in the street, SBMWD's water and sewer emergency line is 909-384-5141, with an answering service after hours.

What changes the price

• Locating time. Isolating hot from cold, pressure testing each side and listening through the slab.
• Repair method. A spot repair through a small opening, or abandoning the buried run and rerouting through walls or the attic.
• Flooring. Tile and stone are harder to open and match than carpet.
• Water damage. Wet drywall, cabinets or baseboards add drying and repair work.
• Permits. The City Building & Safety Division handles plumbing-only work with its Mechanical, Electrical, or Plumbing Permit Application.

When you call

Your call goes to an independent plumber who works in San Bernardino. Be ready to say what the meter did with every fixture off, where the warm or wet spot is, and whether the problem seems to be on the hot side. That helps the plumber plan the first visit around testing before anyone cuts concrete.