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13 Florida-licensed mechanical subcontractors serve Florida Keys (Monroe County). Browse listings below, or create a free* GC account to see phone and email and invite a sub to bid on your RFQ.
Most of these mechanical subcontractors are based in Key West (4), Tavernier (3), Key Largo (2), Summerland Key (2), and Big Pine Key (1) — plus 1 more across the metro.
Mechanical subcontractors handle the full scope of mechanical systems on a project — heating, ventilation and air conditioning, process and steam piping, commercial refrigeration, industrial mechanical equipment, fuel and lubrication piping, and exhaust systems. On commercial and industrial jobs they price from the mechanical drawings and spec, coordinate with electrical for power and controls and with plumbing for connections, and pull permits and schedule inspections on their portion of the work.
See Mechanical subcontractors across Florida →
* Free tier covers the core directory. Optional Premium and Pro tiers are available with paid plans.
When a GC sends a mechanical RFQ, they're usually looking for a quote against a defined scope: the mechanical drawing set and Division 23 spec section, a clear inclusion and exclusion list (HVAC equipment, ductwork, process piping, refrigeration, controls, test-and-balance, commissioning), and the sub's read on long-lead items like chillers, boilers, and custom air-handling units. For bid prep a GC typically wants pricing broken out enough to compare apples-to-apples, confirmation the sub priced to the spec book, and the sub's license and insurance on file.
Mechanical contracting in Florida is a state-licensed trade, regulated by the Construction Industry Licensing Board (CILB) under the DBPR. There are two tiers: a certified mechanical contractor (license prefix CMC) is authorized to work anywhere in the state, while a registered mechanical contractor (RM) is limited to the local jurisdiction that issued their competency card. The mechanical license is broader than air conditioning alone — it covers process piping, refrigeration, and industrial mechanical work as well. Florida treats unlicensed contracting as a crime, so confirming a sub's active CILB license is basic bid-prep diligence.
Yes. Mechanical contracting is regulated statewide by the Construction Industry Licensing Board (CILB) under the DBPR. A certified (CMC) license works anywhere in Florida; a registered (RM) license is limited to the jurisdiction that issued it.
The mechanical license is broader. It covers HVAC plus process piping, commercial refrigeration, industrial mechanical equipment, and fuel piping. An HVAC-only contractor holds the air conditioning license, which is scoped to heating and air conditioning systems.
The mechanical drawing set and Division 23 spec section, a scope inclusion and exclusion list (HVAC equipment, ductwork, process piping, refrigeration, controls, test-and-balance), any long-lead equipment, the bid deadline, and whether a site visit is required.
Yes. GCs post an RFQ and invite matched subs by trade and service area; invited subs are notified and can submit a bid for your bid prep.
Listings are seeded from public Florida DBPR license data, and a sub can claim its listing and upload a credential for a one-time review. The badge reflects what was reviewed: a verified state license earns License Verified — the usual path for a mechanical sub — a verified certificate of insurance earns Insurance Verified, and a sub with both reviewed shows the Verified Pro umbrella.
* Free tier covers the core directory. Optional Premium and Pro tiers are available with paid plans.