Building Mechanical Systems LLC

What this record tells you

Building Mechanical Systems LLC holds Florida licence CMC1249421, a CMC classification which authorises work as a certified/registered air conditioning or mechanical contractor. A "C" prefix means the licence is certified — valid anywhere in Florida.

This licence was first issued in 2004, which makes it a long-held licence for the trade in this area. Roughly 20% of the 821 active hvac & ac repair licences based in the West Palm Beach area were issued earlier than this one, and the local median sits at 2016. That is 22 years of continuous licensure.

Building Mechanical Systems LLC is one of 57 active hvac & ac repair licences registered to an address in Loxahatchee, so you have local alternatives to compare quotes against.

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 Building Mechanical Systems LLC

• Re-check licence CMC1249421 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 Building Mechanical Systems LLC or its qualifying agent, William Byron Hooppell.
• Compare at least three written quotes from other hvac & ac repair contractors in West Palm Beach.
• Confirm in writing that the contractor — not you — pulls the building permit.