There's No National Mold License
One of the most confusing things about hiring a mold contractor is that licensing requirements are completely different depending on where you live. There's no federal mold remediation license. Each state sets its own rules — and some states have no specific requirements at all.
This means a contractor who's fully licensed in Florida may not meet the requirements in Texas, and vice versa. For homeowners, it makes verifying credentials harder than it should be.
How States Handle Mold Licensing
State approaches to mold remediation licensing generally fall into three categories:
States with specific mold licenses — These states require contractors to hold a license specifically for mold assessment, mold remediation, or both. Florida is a well-known example: state law requires separate licenses for mold assessors and mold remediators, and prohibits the same company from performing both services on the same property.
States that bundle mold work under general licenses — In these states, mold remediation falls under a broader contractor, environmental, or industrial hygiene license. The contractor may be qualified, but their license won't say "mold" on it, which makes verification more confusing for homeowners.
States with minimal or no mold-specific requirements — Some states don't regulate mold remediation directly. That doesn't mean contractors in those states are unqualified — many hold voluntary certifications like IICRC WRT or AMRT. But without a state license to check, homeowners have fewer ways to verify credentials independently.
State-by-State Directory
We built Verified Remediation to cut through this complexity. Our directory pulls records directly from state license databases and checks every provider's credentials daily. Here are some of our most active state directories:
Florida
Separate mold assessor and remediator licenses required by state law.
Browse Florida providers →California
General contractor licensing with environmental work provisions.
Browse California providers →How Verified Remediation Checks Credentials
Instead of relying on contractors to self-report their license status, we pull records directly from state databases. Every provider in our directory has a confirmed, active state license — checked daily, not just at signup.
We then layer on two additional trust signals: verified insurance documentation and real customer ratings. Our Trust Tier system ranks providers by how much they've been verified:
Tier A — Licensed, insured, and rated (4.0+ stars with 5+ reviews). Tier B — Licensed and insured (not enough reviews yet). Tier C — Licensed (confirmed state license only).
Search by ZIP code at verifiedremediation.com