Waterproofing in Los Altos, CA

Los Altos properties frequently include below grade living space, subterranean garages, and substantial landscaped hardscape — all of which put structure in long-term contact with moisture. Where the original waterproofing was under-specified, the result shows up years later as efflorescence, staining, or a persistent musty smell in a finished lower level.

Mature landscaping and established hardscape often make exterior excavation impractical here. In those cases we work from the interior: crack and joint injection, curtain grouting behind the wall face, negative-side coatings, and interior perimeter drainage that intercepts water and routes it to a discharge point.

Terraces and elevated decks over living space get a coating system chosen for the substrate and the exposure, with the detailing at drains, thresholds, and railing penetrations rebuilt — because that is where these assemblies almost always fail first.