Harrington & Sons Construction, LLC

What this record tells you

Harrington & Sons Construction, LLC holds Florida licence CGC1538595, a CGC classification which authorises work as a certified/registered general contractor. A "C" prefix means the licence is certified — valid anywhere in Florida.

This licence was first issued in 2025, which makes it one of the newer licences for the trade in this area. Roughly 92% of the 230 active general contracting licences based in the Key West & The Keys area were issued earlier than this one, and the local median sits at 2012. That is 1 year of continuous licensure.

Harrington & Sons Construction, LLC is one of 33 active general contracting licences registered to an address in Marathon, so you have local alternatives to compare quotes against. Steven James Harrington 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 Harrington & Sons Construction, LLC

• Re-check licence CGC1538595 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 Harrington & Sons Construction, LLC or its qualifying agent, Steven James Harrington.
• Compare at least three written quotes from other general contracting contractors in Key West & The Keys.
• Confirm in writing that the contractor — not you — pulls the building permit.