Knockout Plumbing Co.

What this record tells you

Knockout Plumbing Co. holds Florida licence CFC1430655, 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 2020, which makes it an established licence for the trade in this area. Roughly 40% of the 1,098 active plumbing licences based in the Miami area were issued earlier than this one, and the local median sits at 2022. That is 6 years of continuous licensure.

Knockout Plumbing Co. is one of 692 active plumbing licences registered to an address in Miami, so you have local alternatives to compare quotes against. John Emmett Blosser 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 08/31/2026. 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 Knockout Plumbing Co.

• Re-check licence CFC1430655 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 Knockout Plumbing Co. or its qualifying agent, John Emmett Blosser.
• Compare at least three written quotes from other plumbing contractors in Miami.
• Confirm in writing that the contractor — not you — pulls the building permit.