A Florida Certified Mechanical Contractor (CMC) holds a license covering mechanical systems beyond standard HVAC — including commercial refrigeration, process piping, boiler systems, and industrial mechanical equipment. While homeowners are less likely to encounter CMC contractors than HVAC (CAC) contractors, CMCs are essential for commercial projects, industrial facilities, and certain specialized residential systems.
What a CMC Can Do
Under Florida Statute §489.105(3)(g), a Certified Mechanical Contractor may install and service:
- Commercial HVAC and process cooling systems
- Boiler systems (commercial and industrial)
- Commercial refrigeration systems
- Compressed air and pneumatic systems
- Process piping for industrial facilities
- Hydronic heating and cooling systems
- Chilled water and cooling tower systems
- Fire suppression systems (in coordination with fire codes)
- Medical gas systems in healthcare facilities
- Building automation and controls for mechanical systems
Requirements to Get a CMC License in Florida
- 1Minimum 4 years of mechanical industry experience
- 2Pass the Florida CMC state licensing exam
- 3Insurance: general liability and workers' compensation
- 4Background check and financial review
- 5Biennial renewal with continuing education
Governing law: Florida Statute §489.105(3)(g)
Why You Should Hire a Licensed CMC
For commercial facilities, restaurants, medical offices, and industrial properties, mechanical systems are complex, high-pressure, and high-stakes. A CMC's training and licensing ensures proper design, installation, and commissioning of systems that a standard HVAC contractor may not be qualified to handle. Florida's DBPR licensing system provides recourse if work is deficient, and permits triggered by CMC work provide inspection oversight that protects building owners.
What to Look for When Hiring
- Active "CMC" license verified through FloridaContractorCheck
- Experience with your specific mechanical system type
- References from commercial clients with similar systems
- Comprehensive service agreement for ongoing maintenance
- Clear scope of work and equipment specifications
Common Projects Requiring a CMC License
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