Mold work is one of the most profitable steps up from water restoration. It’s also one of the most regulated. Before you take on your first mold job, you need to know whether your state requires a license, and what kind.
I’m a licensed mold assessor and remediator in Florida and have served as a mold expert in attorney cases. Here are the basics every contractor should understand.
Looking for your state? See the full mold licensing requirements for all 50 states plus DC.
The short answer: it depends on your state
There’s no federal license for mold remediation in the U.S. A handful of states have their own licensing programs, including Florida, Texas, New York, and Louisiana. Most states don’t license mold work at all, but that can change, and some cities and counties have their own rules.
Always check with your state’s licensing board before you advertise or perform mold services.
Assessment vs. remediation
In states that regulate mold, there are usually two separate roles:
Mold assessors inspect, test, and write the plan for what needs to be removed.
Mold remediators do the removal and cleanup according to that plan.
Some states don’t allow the same company to do both on the same project. In Florida, for example, you can’t assess and remediate the same job. That rule protects homeowners from conflicts of interest, and it also creates natural referral partnerships between assessors and remediators.
Certification vs. licensing
A license is issued by a government and is a legal requirement where it applies. A certification, like those from the IICRC, is an industry credential that shows you’ve been trained. Even in states with no license requirement, certification builds trust with homeowners, property managers, and insurance adjusters.
Insurance for mold work
Mold work carries more risk than basic water drying, and many general liability policies exclude it. If you plan to do mold jobs, look into coverage that specifically includes mold. Commercial clients will almost always require proof of it.
Common questions about mold licensing
Which states require a mold license? Florida, Texas, New York and Washington, D.C. license both assessors and remediators. Louisiana licenses remediators, New Hampshire licenses residential assessors, and Illinois, Virginia, Oregon and Tennessee have their own registration, certification or contractor rules. See the full state-by-state table.
Is there a federal mold license? No. The EPA publishes mold guidance, but licensing, where it exists, is handled by states.
Can I remove small amounts of mold without a license? Some licensed states exempt very small areas; Texas and New York, for example, have size thresholds. Check your state’s exact rules before relying on an exemption.
What happens if I do mold work without a required license? In licensed states, it can mean fines, trouble getting paid, and legal liability if something goes wrong. It isn’t worth the risk.
Does my IICRC certification count as a license? No. Certification shows training; a license is a legal requirement where it applies. In Virginia, a recognized certification is now required for residential mold remediators. See IICRC certifications explained.
Start with water, step up to mold
The smartest path is to start with water damage jobs, build your systems and referral partners, then step up into mold once you know your state’s requirements. That’s the path I teach in the 6-Figure Launchpad.
Keep reading: How to Start a Mold Remediation Business · Mold Remediation Training and Certification: What You Actually Need
This article is general information, not legal advice. Licensing laws change; confirm current requirements with your state’s licensing agency.
