West Covina

West Covina is mid-century tract housing almost end to end, built on slab, which makes it slab leak country. A warm patch on the floor or a meter that creeps with every fixture off is usually a failed copper supply line under the concrete.

The mistake we get called to fix is guesswork — concrete opened in the wrong place because nobody located the leak first. We isolate the system, pinpoint acoustically, and mark the spot on the floor before anything is cut.

The rest of our West Covina work is straightforward and steady: main line stoppages, water heaters at end of life, and the occasional whole-house repipe where the original copper has started pinholing.