A-1 Radon & Vacuum
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What customers say about A-1 Radon & Vacuum
A-1 Radon & Vacuum carries a 4.9-star rating across 249 Google reviews, which stands out for a mold inspector serving Appleton's older housing stock. Most homes here were built around 1971, and the region's 70% average relative humidity and 30 inches of annual rainfall create ideal conditions for moisture problems. That kind of rating suggests homeowners have found the service reliable in a climate where mold risk is genuinely high.
Before hiring, verify that A-1 Radon & Vacuum is registered with Wisconsin's DSPS as a dwelling contractor, since state law requires it. Ask whether they hold IICRC S520 certification, the industry standard for mold professionals. One important caveat: A-1 Radon & Vacuum is listed as both a mold inspector and appears to perform remediation work. This dual role creates a potential conflict of interest under industry standards, since the same company that identifies the problem also profits from fixing it. For a standalone mold inspection in Appleton, expect to pay $200-$600. Consider getting an independent inspection before accepting any remediation recommendations.
Summary drawn from 249 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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