Mill Valley / Sausalito / Tiburon — Craftsman Subfloor Smell That Returns With Bay Fog Each Morning
"We just closed on a 1920s Mill Valley craftsman. Multi-decade cat history across owners. Smell returns every foggy morning — which is most mornings. We've cleaned, repainted, replaced the carpet. Doesn't matter."
Decades of cat urine have absorbed into the original Douglas fir subfloor. Bay marine layer fog brings the smell back daily.
Real Southern Marin Job
Mill Valley vintage Craftsman — Douglas fir subfloor with multi-decade cat urine contamination, daily fog reactivation — 1920s Craftsman in Mill Valley with original Douglas fir subfloor. Inspection revealed cat urine contamination across the subfloor in three rooms from previous owners' multi-cat household over many years. Bay marine layer fog was reactivating the embedded contamination on a daily cycle. Common in Mill Valley, San Anselmo, and Larkspur premium vintage construction where multi-decade pet ownership and persistent humidity combine to produce strongly reactivated contamination. The inspection provides the documented map and itemized estimate needed to determine next steps.
Cities served: Sausalito, Mill Valley, Tiburon, Belvedere, Corte Madera, Larkspur




