Contractor Vetting Guide

Holds proper state/local licensesRequired

Licensing requirements vary by state. Check your state's requirements.

IICRC certified (S520 standard)Required

IICRC is the main certification body for mold remediation.

Carries liability insuranceRequired

Ask for certificate of insurance. Should be at least $1M coverage.

Has workers compensation insuranceRequired

Is bonded

Provides detailed written estimateRequired

Provides written scope of workRequired

Conducts inspection before quotingRequired

Be wary of quotes given over the phone without seeing the problem.

Does NOT do their own testing

Testing and remediation should be separate to avoid conflict of interest.

Provides verifiable references

Offers written guarantee/warranty

Addresses moisture source firstRequired

Remediation without fixing the moisture source will fail.

Uses proper containment protocolsRequired

Uses HEPA air filtrationRequired

Uses negative air pressure

Workers use proper PPERequired

Follows proper disposal proceduresRequired

Recommends post-remediation testing

Independent testing after completion verifies success.

Uses scare tactics or high-pressure salesRequired

Demands cash or full payment upfrontRequired

Unwilling to provide written contractRequired

Claims to test for "toxic" or "black" mold specifically

Legitimate professionals don't make these distinctions.

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