Thrasher Foundation Repair
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What customers say about Thrasher Foundation Repair
Thrasher Foundation Repair holds a 4.9-star rating across 393 Google reviews, a strong track record for Sioux City homeowners dealing with foundation and moisture issues. Given the region's 63% average humidity and 28 inches of annual rainfall, combined with a median home age of 1955, basement water intrusion and settling are common concerns. That rating suggests the company has earned trust on jobs where precision and follow-through matter most.
Before hiring, verify that Thrasher is properly registered as a contractor in Iowa and carries appropriate insurance. Iowa doesn't require a specific mold remediation license, so ask about IICRC S520 certification, which signals industry-standard training. One important note: Thrasher is listed as a mold inspector, which creates a potential conflict of interest when the same company both inspects and performs remediation. If you need a mold inspection, consider getting an independent one first (typically $200-$600 in this area) to avoid bias in recommendations.
Summary drawn from 393 Google reviews. We do not represent or endorse this firm.
Note: may also offer remediation services
This company's listed services suggest it may also perform mold remediation — confirm directly before booking an inspection. Industry standards recommend using a separate inspector and remediator to avoid a conflict of interest: an inspector who may also profit from remediation has less incentive to give an unbiased report.
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Claim This Listing →Business data sourced from public records · Last updated April 2026
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