Credentials That Matter
Look for ACAC (American Council for Accredited Certification) credentials, specifically CIE (Council-certified Indoor Environmentalist) or CMRS (Council-certified Microbial Remediation Supervisor). IICRC certification is relevant for water damage and mold remediation. NADCA membership is relevant for duct cleaning. These are not guarantees of quality, but they indicate training and industry standards.
Red Flags
A company that tests and also sells remediation has a structural conflict of interest. Be cautious if a testing company recommends expensive remediation from their own team without providing the option to get a second opinion. Be wary of scare tactics or urgency pressure. And verify that the "test" involves actual laboratory analysis, not just a visual inspection with a handheld device and a verbal report.
Questions to Ask
Do you only test, or do you also sell remediation services? What certifications do your inspectors hold? Will results include lab analysis? Can I take the results to another company for remediation quotes? Getting an independent assessment first gives you a baseline to evaluate any professional's findings against.
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