David Michael Koerner

What this record tells you

David Michael Koerner holds Florida licence MRSR857, 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 2011, which makes it a long-held licence for the trade in this area. Roughly 2% of the 164 active mold remediation licences based in the Tampa area were issued earlier than this one, and the local median sits at 2022. That is 15 years of continuous licensure.

David Michael Koerner is one of 73 active mold remediation licences registered to an address in Tampa, so you have local alternatives to compare quotes against. David Michael Koerner additionally holds 1 other active Florida licence 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 David Michael Koerner

• Re-check licence MRSR857 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 David Michael Koerner or its qualifying agent, David Michael Koerner.
• Compare at least three written quotes from other mold remediation contractors in Tampa.
• Confirm in writing that the contractor — not you — pulls the building permit.