5 Signs You Have a Hidden Water Leak in Your Valley Home

Hidden leaks are among the costliest problems a homeowner can face. Many Valley houses combine older pipes with concrete slab foundations and plumbing buried in walls, so a small drip can quietly cause serious damage over a few weeks. The good news is that most leaks give themselves away if you know what to look for.

Below are the five most common signs of a hidden water leak, the same ones a plumber looks for during professional leak detection in Van Nuys.

1. Your water bill is climbing for no reason

An unexplained jump is one of the clearest indicators of a hidden leak. If your habits have not changed but the bill keeps rising, water may be escaping somewhere you cannot see, usually behind a wall, under a slab, or in an irrigation line.

2. You hear water running when everything is off

Turn off every fixture and appliance, then stand still and listen. A faint hiss, trickle or drip almost always means pressurized water is escaping from a pipe.

3. Warm or damp spots on floors and walls

Slab leaks are a familiar problem in the Valley's mid-century ranch homes. A patch of floor that feels warm, discolored drywall, or bubbling paint often points to a hot water line leaking beneath the foundation.

4. Musty smells or new mold growth

A slow leak inside a wall or cabinet creates exactly the damp, hidden space where mold likes to grow. If you notice a musty odor around cabinets, closets or baseboards, do not ignore it. Call for emergency plumbing service right away.

5. Low water pressure in fixtures that used to be strong

A sudden pressure drop in one part of the house often means a supply line is damaged. It can also be a sign of pipe corrosion, which is common in older galvanized steel lines.