34.07° N · 118.10° W · WESTERN SGV
Under-sink leaks in the SGV
Empty the cabinet, dry everything, and look for the wet or crusted joint. Then text a photo to (310) 628-9399.
Supply or drain
Run the faucet for a minute. A drip that appears only while water flows is on the drain side. A drip with everything off is on the supply side.
Old shutoffs
Most SGV houses date from the 1950s and 1960s, and many still have multi-turn stem shutoffs. They seize, then weep at the packing nut after being turned.
We replace them with quarter-turn valves and braided supply lines on the existing pipe.
Traps and strainers
Slip nuts loosen, old chrome traps corrode, and strainers lose their putty seal. Each is a quick swap or reset.
If the cabinet floor is soft or the wall is wet, we flag it so it can dry.
Questions we hear around the valley
Is white crust on a valve a leak?
Usually a slow one; the crust is minerals left behind.
Do I need a new faucet?
Rarely. Most under-sink leaks are at valves, lines or trap joints.