Mold remediation in Marina District

Largely built on reclaimed bay fill, not solid bedrock like much of the rest of the city.

Victorian and Edwardian homes built before 1920 still carry original galvanized plumbing in many cases, and their raised foundations create crawlspaces that hold onto the city's near-constant fog moisture.

Across San Francisco, the risks homeowners run into most are fog moisture and old Victorian plumbing. The city's famous fog keeps ambient humidity high year-round regardless of rainfall totals, and neighborhoods built on reclaimed marshland or bay fill (parts of the Marina and SoMa) sit on ground with a naturally higher water table.