Rockwell Building Systems LLC

What this record tells you

Rockwell Building Systems LLC holds Florida licence CBC1257971, a CBC classification which authorises work as a certified/registered building or residential contractor. A "C" prefix means the licence is certified — valid anywhere in Florida.

This licence was first issued in 2010, which makes it a long-held licence for the trade in this area. Roughly 37% of the 1,879 active home building & remodeling licences based in the Tampa area were issued earlier than this one, and the local median sits at 2017. That is 16 years of continuous licensure.

Rockwell Building Systems LLC is one of 86 active home building & remodeling licences registered to an address in Riverview, so you have local alternatives to compare quotes against. Douglas Brant Zoellner 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 Rockwell Building Systems LLC

• Re-check licence CBC1257971 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 Rockwell Building Systems LLC or its qualifying agent, Douglas Brant Zoellner.
• Compare at least three written quotes from other home building & remodeling contractors in Tampa.
• Confirm in writing that the contractor — not you — pulls the building permit.