Attic Star
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Attic Star holds a 4.9-star rating across 184 Google reviews, which matters if you live in Redwood City where moisture is a persistent challenge. With 72% average humidity and 20 inches of annual rainfall, combined with many homes built around 1969, mold risk runs high in older attics and crawl spaces. A contractor with that kind of track record has likely handled the exact conditions affecting your house.
When you call, confirm that Attic Star holds a current Contractor's State License Board (CSLB) license, since California doesn't issue a specific state mold remediation license but requires contractors to be CSLB-licensed. Before hiring, verify their insurance coverage and ask whether they hold IICRC certification. Typical remediation projects in this area run $1,900 to $5,650, so get a detailed estimate in writing and don't assume the low end applies to your situation.
Summary drawn from 184 Google reviews. We do not represent or endorse this firm.
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Business data sourced from public records · Last updated April 2026
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