Dahm Mechanical LLC
43+ yrsSt Petersburg, FL 33710
CAC025402 · licensed since 1983
Certified/Registered Air Conditioning or Mechanical Contractor · St Petersburg, FL
| License number | CAC049327 |
| License type | CAC — Certified/Registered Air Conditioning or Mechanical Contractor |
| License holder | Ronald W Spang |
| Location | 2210 30th Ave North, St Petersburg, FL 33713 |
| Licensed since | 1989 |
| License expires | 08/31/2028 |
| Status in DBPR records | Current, Active (as of 2026-08-11) |
Verify license CAC049327 on the official Florida DBPR site ↗
Ronald Spang Inc holds Florida licence CAC049327, 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 1989, which makes it one of the longest-held licences for the trade in this area. Roughly 5% 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 37 years of continuous licensure.
Ronald Spang Inc 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. Ronald W Spang 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.
This page is generated from Florida DBPR public license records and is shown for consumer-protection purposes. Ronald Spang Inc has not claimed this page, is not a sponsor, and no endorsement is implied. Figures comparing this licence to others are calculated from the same public dataset, last refreshed 2026-08-11. Always re-verify license status and insurance directly before hiring.
St Petersburg, FL 33710
CAC025402 · licensed since 1983
St Petersburg, FL 33710
CAC053233 · licensed since 1991
St Petersburg, FL 33701
CMC023451 · licensed since 1982
St Petersburg, FL 33703
CAC056296 · licensed since 1992
St Petersburg, FL 33710
CAC016266 · licensed since 1980
St Petersburg, FL 33743
CAC056911 · licensed since 1994
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Florida records these licences under the same qualifying agent name. A single qualifying agent can hold licences across several trades or entities, so this is a name match in the public register — not proof that the same person or business is behind each one.
St Petersburg, FL 33713
CAC1823603 · licensed since 2024