Santa Rosa Mold Pros is a free quote service for homeowners, renters and landlords in Santa Rosa, California and nearby Sonoma County towns. Describe the problem once and independent mold inspection and remediation companies that work in your area reply with quotes.
Get a Free Quote
The city itself is covered on the home page. Santa Rosa has about 179,400 residents (2025 estimate) and a median home built in 1980; half the housing predates that year and about 57 percent is owner-occupied. Requests come from every part of town, from Coffey Park, Fountaingrove and Larkfield-Wikiup, where many homes were rebuilt after the 2017 Tubbs Fire, to Bennett Valley, Rincon Valley, Oakmont and Roseland.
The pattern is the same across the city: about 83 percent of the year's rain falls November through March, then a nearly rainless summer hides what leaked. Musty crawl spaces, attic stains from winter roof leaks and mold behind old windows are the usual calls.
Each town page covers local housing, weather and flood or fire history, and the mold problems that follow. Distances are straight-line from downtown Santa Rosa; driving is longer.
About 15 miles south-southeast. About 59,700 people (2025 estimate), a median home built in 1979, and restored Victorians downtown. The Petaluma River has a long flood history in the Payran neighborhood, and summer mornings often start foggy.
Mold help in PetalumaAbout 7 miles south. A planned city from the early 1960s with lettered neighborhood sections and a median home built in 1982. About half of households rent, the highest share in the area, so renter and landlord questions come up often.
Mold help in Rohnert ParkAbout 9 miles northwest. The newest housing in the area, with a median build year of 1993. Homes from the 1990s and 2000s are now old enough for window, flashing and plumbing leaks. Windsor was evacuated during the 2019 Kincade Fire.
Mold help in WindsorAbout 6.5 miles west. Older west-county homes, with 62.5 percent built before 1980. The Laguna de Santa Rosa often floods in winter and can reach low-lying homes on the east side of town.
Mold help in SebastopolAbout 14 miles north-northwest, on the Russian River. Wetter than Santa Rosa at about 42 inches of rain a year, with historic districts and second homes that sit closed up for weeks.
Mold help in HealdsburgAbout 17 miles southeast. Historic homes around the Plaza and Sonoma Valley rebuilds after the 2017 Nuns Fire. Glen Ellen and Kenwood are unincorporated, so Permit Sonoma rules apply there.
Mold help in SonomaAbout 16 miles west, including Monte Rio and Forestville. The river crested at 45.38 feet at Guerneville in February 2019. Guerneville's median home was built in 1955, and about a quarter of its homes are seasonal cabins under fog and redwood shade.
Mold help in Guerneville & the Russian RiverAbout 8 miles south. Fog through the Petaluma Gap keeps Cotati cooler and less sunny than Santa Rosa, and the town sits in the Laguna de Santa Rosa basin. Most homes date from the 1970s and 1980s.
Mold help in CotatiPermits depend on where the home is. The City of Santa Rosa and each incorporated town run their own building departments, while unincorporated areas such as Guerneville, Monte Rio, Forestville, Glen Ellen, Kenwood and Larkfield-Wikiup fall under Permit Sonoma, which exempts minor drywall repair only up to 100 square feet. Ask the company or your building department before rebuild work starts.
Wherever you live, the same state rules apply: California issues no mold-specific license, but jobs of $1,000 or more, jobs needing a permit and jobs with employees require a CSLB-licensed contractor. Check the license on the CSLB license lookup.
Not sure which page fits? Start with mold removal, mold inspection and testing or floods, storms and leaks, or just send a request.
Free, no-pressure quotes from independent companies across Santa Rosa, Petaluma, Rohnert Park, Windsor and Sonoma County.
