Interstate Environmental Services Inc

What this record tells you

Interstate Environmental Services Inc holds Florida licence CFC057287, a CFC classification which authorises work as a certified/registered plumbing contractor. A "C" prefix means the licence is certified — valid anywhere in Florida.

This licence was first issued in 1999, which makes it one of the longest-held licences for the trade in this area. Roughly 17% of the 461 active plumbing licences based in the Jacksonville area were issued earlier than this one, and the local median sits at 2014. That is 27 years of continuous licensure.

Interstate Environmental Services Inc is one of 259 active plumbing licences registered to an address in Jacksonville, so you have local alternatives to compare quotes against. Fred Michael Maddox 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 08/31/2028. 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 Interstate Environmental Services Inc

• Re-check licence CFC057287 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 Interstate Environmental Services Inc or its qualifying agent, Fred Michael Maddox.
• Compare at least three written quotes from other plumbing contractors in Jacksonville.
• Confirm in writing that the contractor — not you — pulls the building permit.