Clean CrawlSpace Inc.
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Clean CrawlSpace Inc. earns a 5-star rating across 61 Google reviews, which matters especially in Napa where older homes (median built 1974) face real moisture challenges. With 70% average humidity and 16 inches of annual rainfall, crawlspaces become breeding grounds for mold. That consistent five-star track record suggests homeowners here have found reliable help with the mold remediation work their aging foundations demand. Typical projects in this area run between $1,900 and $5,650, so you'll want to get a detailed estimate before committing.
California doesn't issue a specific state license for mold remediation, but any contractor you hire must hold a valid Contractor's State License Board (CSLB) license. Before booking Clean CrawlSpace Inc., verify their CSLB credentials, confirm they carry current insurance, and ask to see IICRC certification - these steps protect you and ensure the work meets industry standards. Don't skip this verification process, even with strong reviews.
Summary drawn from 61 Google reviews. We do not represent or endorse this firm.
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Business data sourced from public records · Last updated March 2026
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