Tell us what you're seeing, whether it's a crawlspace, attic, bathroom or the aftermath of a leak, and we'll connect you with an independent local mold inspection or remediation provider.
ZIP codes: 94941
Mill Valley's homes sit tucked into shaded redwood canyons on Mt. Tamalpais's eastern slope, from Cascade and Blithedale Canyons to Homestead Valley and Tam Valley.
Few places in Marin are as mold-prone as Mill Valley's redwood canyons. Some lots barely get direct sun in winter, and the needle litter, mossy decks and hillside seepage keep lower floors and crawlspaces damp for months. Many older homes were built into the slope, with a below-grade wall that wicks moisture, and that's where musty-smelling storage rooms and closets show up.
Moisture sources to check: below-grade walls, under-deck areas, bedrooms with exterior walls facing uphill, and bathrooms without exhaust fans that vent outside.
Is water still coming in? Drying it out fast comes first: see Marin water damage help. For general guidance, see the EPA's mold resources.