Waterproofing in Sausalito, CA

Sausalito's steep hillsides and waterfront exposure create a distinct set of waterproofing challenges. Homes built into the slope rely on retaining walls and subterranean garage walls that take constant pressure from both groundwater and surface runoff moving downhill. When the original waterproofing ages out, the first signs usually appear as staining in lower-level walls or a persistent musty dampness in finished space.

Excavation is often impractical on these lots because of narrow streets, zero setbacks, and mature landscaping. We address those constraints with interior and injection approaches: crack and joint injection, curtain grouting, negative-side coatings, and interior perimeter drainage that intercepts water and routes it to a pump or daylight discharge.

Terraces and decks over living space are another common call in Sausalito. Salt air, wind-driven rain, and daily thermal movement stress the membrane and detailing at drains, thresholds, and railings. We recoat these assemblies with flexible, traffic-rated systems and rebuild the penetration details so the surface can move without tearing.