A Florida Certified Sheet Metal Contractor (CSC) specializes in the fabrication and installation of sheet metal systems — primarily HVAC ductwork, but also architectural metal, kitchen exhaust hoods, and custom metal fabrication. While less visible than other trades, properly designed and installed ductwork is one of the biggest factors in HVAC system efficiency in Florida homes.
What a CSC Can Do
Under Florida Statute §489.105(3)(h), a Certified Sheet Metal Contractor may fabricate and install:
- HVAC ductwork systems: supply, return, and exhaust
- Custom sheet metal fabrication for HVAC and architectural applications
- Commercial kitchen exhaust hoods and ventilation systems
- Grease ducts and fire-rated duct systems
- Rooftop equipment curbs and platforms
- Metal decking for commercial roofing applications
- Architectural metal trim and flashing
- Custom metal enclosures and housings
- Air distribution components: diffusers, registers, dampers
Requirements to Get a CSC License in Florida
- 1Minimum 4 years of sheet metal trade experience
- 2Pass the Florida CSC state licensing exam
- 3Insurance: general liability and workers' compensation
- 4Background check
- 5Biennial renewal with continuing education
Governing law: Florida Statute §489.105(3)(h)
Why Homeowners and Businesses Should Hire a Licensed CSC
In Florida, where homes lose a significant percentage of their cooling capacity through leaky, undersized, or poorly designed duct systems, a qualified sheet metal contractor can dramatically improve HVAC performance. A duct system designed and sealed by a licensed CSC — meeting ACCA Manual D design standards — can reduce HVAC energy consumption by 20–30% compared to a leaky, poorly designed system. For commercial kitchens, properly designed exhaust hoods and grease ducts are fire-safety requirements that require licensed, inspected installation.
What to Look for When Hiring
- Active "CSC" license verified through FloridaContractorCheck
- SMACNA (Sheet Metal and Air Conditioning Contractors' National Association) membership or certification
- Familiarity with ACCA Manual D duct design standards
- Experience with your project type (residential duct replacement, commercial kitchen)
- Willingness to seal and test duct systems
Common Projects Requiring a CSC License
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