Find 2 verified mold assessment pros near you in Ontario, CA. All licenses verified daily.
0 Top Rated, 0 Insured, 2 Licensed
Top choice for Ontario
Our top verified pick for mold assessment in Ontario, CA is Haven Cleaning with a 4.7-star rating from 66 reviews. They have active state licensing verified in 2026.
Haven Cleaning
Ontario, CA
66 reviews
0 Top Rated, 0 Insured, 2 Licensed
Pacific Coastal
Varies widely by subregion (40-75% average)
Varies widely by subregion (40-75% average)
Cladosporium, Penicillium, Aspergillus
Diverse microclimates from desert to redwood coast. Northern California sees more rain and mold risk. Southern California has wildfire-related water damage from suppression. Central Valley has agricultural humidity.
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