Douglas Ryan Porterfield
ActiveSaint Johns, FL 32259
MRSR2392 · licensed since 2012
Licensed Mold Remediator · Saint Johns, FL
| License number | MRSR156 |
| License type | MRSR — Licensed Mold Remediator |
| License holder | William R Bolin |
| Location | 528 Tivoli Dr, Saint Johns, FL 32259 |
| Licensed since | 2010 |
| License expires | 07/31/2028 |
| Status in DBPR records | Current, Active (as of 2026-08-11) |
William R Bolin holds Florida licence MRSR156, 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 2010, which makes it a long-held licence for the trade in this area. Roughly 0% 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 16 years of continuous licensure.
William R Bolin is one of 2 active mold remediation licences registered to an address in Saint Johns, so you have local alternatives to compare quotes against. William R Bolin 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.
This page is generated from Florida DBPR public license records and is shown for consumer-protection purposes. William R Bolin 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.
Saint Johns, FL 32259
MRSR2392 · licensed since 2012
Jacksonville, FL 32208
MRSR184 · licensed since 2010
Jacksonville, FL 32241
MRSR624 · licensed since 2011
Jacksonville Beach, FL 32250
MRSR189 · licensed since 2010
Jacksonville, FL 32256
MRSR1959 · licensed since 2011
Jacksonville, FL 32218
MRSR166 · licensed since 2010
See all mold remediation & water damage companies in Jacksonville →
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.
Saint Johns, FL 32259
MRSA152 · licensed since 2010