Mark Stephen Mongon

Active license

Licensed Mold Remediator · Saint Augustine, FL

License numberMRSR789
License typeMRSR — Licensed Mold Remediator
License holderMark Stephen Mongon
Location3501 B N Ponce Deleon Blvd 255, Saint Augustine, FL 32084
Licensed since2011
License expires07/31/2028
Status in DBPR recordsCurrent, Active (as of 2026-08-11)

Verify license MRSR789 on the official Florida DBPR site ↗

What this record tells you

Mark Stephen Mongon holds Florida licence MRSR789, 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 6% of the 118 active mold remediation licences based in the Jacksonville area were issued earlier than this one, and the local median sits at 2018. That is 15 years of continuous licensure.

Mark Stephen Mongon is one of 10 active mold remediation licences registered to an address in Saint Augustine, so you have local alternatives to compare quotes against. Mark Stephen Mongon 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 Mark Stephen Mongon

  • Re-check licence MRSR789 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 Mark Stephen Mongon or its qualifying agent, Mark Stephen Mongon.
  • Compare at least three written quotes from other mold remediation contractors in Jacksonville.
  • Confirm in writing that the contractor — not you — pulls the building permit.

This page is generated from Florida DBPR public license records and is shown for consumer-protection purposes. Mark Stephen Mongon has not claimed this page, is not a sponsor, and no endorsement is implied. Figures comparing this licence to others are calculated from the same public dataset, last refreshed 2026-08-11. Always re-verify license status and insurance directly before hiring.

Other licensed mold remediation & water damage companies near Saint Augustine

Adam H Russo

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MRSR1173 · licensed since 2011

Sean J Cowing

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Saint Augustine, FL 32092

MRSR3950 · licensed since 2021

See all mold remediation & water damage companies in Jacksonville →

Other licences under the name Mark Stephen Mongon

Florida records these licences under the same qualifying agent name. A single qualifying agent can hold licences across several trades or entities, so this is a name match in the public register — not proof that the same person or business is behind each one.

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