Christian Merzilus

What this record tells you

Christian Merzilus holds Florida licence MRSR4621, a MRSR classification which authorises work as a licensed mold remediator. An "R" prefix means the licence is registered, which limits work to the local jurisdictions that accepted it rather than the whole state.

This licence was first issued in 2023, which makes it a relatively recent licence for the trade in this area. Roughly 74% of the 96 active mold remediation licences based in the Port St. Lucie & Treasure Coast area were issued earlier than this one, and the local median sits at 2019. That is 3 years of continuous licensure.

Christian Merzilus is one of 14 active mold remediation licences registered to an address in Port Saint Lucie, so you have local alternatives to compare quotes against.

The licence is recorded as expiring on 07/31/2028. Florida licences renew on a fixed cycle, and a licence that is not renewed moves to delinquent status — which is why the expiry date matters if you are planning work close to that date. Confirm the current status on the state portal before signing a contract.

Before you hire Christian Merzilus

• Re-check licence MRSR4621 on the DBPR portal — status can change any day.
• Ask for a current certificate of liability insurance and workers' compensation, issued to you directly by their insurer.
• Confirm the name on your contract matches Christian Merzilus or its qualifying agent, Christian Merzilus.
• Compare at least three written quotes from other mold remediation contractors in Port St. Lucie & Treasure Coast.
• Confirm in writing that the contractor — not you — pulls the building permit.