Dahm Mechanical LLC

What this record tells you

Dahm Mechanical LLC holds Florida licence CAC025402, a CAC 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 1983, which makes it one of the longest-held licences for the trade in this area. Roughly 2% of the 709 active hvac & ac repair licences based in the St. Petersburg & Clearwater area were issued earlier than this one, and the local median sits at 2015. That is 43 years of continuous licensure.

Dahm Mechanical LLC is one of 139 active hvac & ac repair licences registered to an address in St Petersburg, so you have local alternatives to compare quotes against.

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 Dahm Mechanical LLC

• Re-check licence CAC025402 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 Dahm Mechanical LLC or its qualifying agent, Richard Ernest Dahm.
• Compare at least three written quotes from other hvac & ac repair contractors in St. Petersburg & Clearwater.
• Confirm in writing that the contractor — not you — pulls the building permit.