Sost Mechanical Corp

What this record tells you

Sost Mechanical Corp holds Florida licence CMC1251704, 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 2025, which makes it one of the newer licences for the trade in this area. Roughly 86% 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 1 year of continuous licensure.

Sost Mechanical Corp 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 Sost Mechanical Corp

• Re-check licence CMC1251704 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 Sost Mechanical Corp or its qualifying agent, Matthew Herbert Sost.
• 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.