Christian Alexander Castellanos

What this record tells you

Christian Alexander Castellanos holds Florida licence MRSR3912, 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 2021, which makes it a relatively recent licence for the trade in this area. Roughly 56% of the 351 active mold remediation licences based in the Miami area were issued earlier than this one, and the local median sits at 2020. That is 5 years of continuous licensure.

Christian Alexander Castellanos is one of 232 active mold remediation licences registered to an address in Miami, so you have local alternatives to compare quotes against. Christian Alexander Castellanos additionally holds 2 other active Florida licences in our records, which can indicate a contractor qualified across more than one trade or entity.

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 Alexander Castellanos

• Re-check licence MRSR3912 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 Alexander Castellanos or its qualifying agent, Christian Alexander Castellanos.
• Compare at least three written quotes from other mold remediation contractors in Miami.
• Confirm in writing that the contractor — not you — pulls the building permit.