Mold Removal guides for Sonoma County homeowners
Everything we've written, organized so you can find the right answer fast.
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Mold remediation in Sonoma County: the complete homeowner's guide
The complete Sonoma County mold guide: signs, health risks, testing (and when to skip it), DIY limits, remediation steps, renters' rights and hiring a provider.
After the storm
El Niño 2026–27: an hour-by-hour and day-by-day timeline for drying a Sonoma County home after a leak or flood, so mold doesn't take hold. EPA and CDPH based.
Deep dives
Mold after a Russian River flood: what river homeowners need to know
Guerneville, Monte Rio, Forestville and Healdsburg flood homes: how mold follows Russian River floodwater, what to remove, drying timelines and re-entry safety.
Mold test results explained: what California's health department says
Already have mold test results, or buying a Sonoma County home? What CDPH says about spore counts, indoor vs. outdoor comparisons and post-remediation clearance.
Crawlspace moisture in Sonoma County
Why Sonoma County crawlspaces get wet in winter, how to check yours, drainage and vapor barrier fixes, and when crawlspace mold needs a professional.
How to choose a mold remediation company in Sonoma County
How to choose a mold remediation company in Santa Rosa or Sonoma County when California has no mold license: certifications, CSLB, questions to ask and red flags.
Local guides by town
Flood mold cleanup in Guerneville, Monte Rio and Rio Nido
Mold cleanup after Russian River floods in Guerneville, Monte Rio and Rio Nido: what to remove, drying raised homes and crawlspaces, and licensed local help.
Flood mold cleanup in Petaluma: the Petaluma River, creeks and crawlspaces
Mold cleanup after flooding in Petaluma: Petaluma River and creek flood history, crawlspaces, drying deadlines and how to get an experienced local provider.
Flood mold cleanup in Sebastopol: the Laguna de Santa Rosa and low-lying streets
Mold cleanup after Laguna de Santa Rosa flooding in Sebastopol: Morris Street and Highway 12 areas, crawlspaces, drying deadlines and local help, 24/7.
Storm-season articles
Mold after a roof leak: where it hides and what to do
Had a roof leak this storm season? Where mold hides after a leak (attic, insulation, walls), how fast to dry, and when to call a pro. Sonoma County guide.
Winter condensation and mold: how to control humidity at home
Foggy windows and black spots on sills? How winter condensation leads to mold in Sonoma County homes, and simple humidity fixes that work.
Mold in a Sonoma County rental: what tenants and landlords should know
Renting in Sonoma County and dealing with mold? What California housing law says, how code enforcement works and practical steps for tenants and landlords.