HVAC Contractor Permit Requirements in Nashville, TN

Complete permit and license guide for starting a hvac contractor in Nashville, Davidson County, Tennessee.

Updated 2026-03-15 4 stops $600–$2,000 est. 7–12 weeks to obtain all licenses
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Not legal advice. Requirements may change — always verify with your local government authority before applying. This guide was compiled from public and official sources (last updated ) and has not yet been independently source-verified — confirm each requirement before acting on it.

Federal — start here

2 stops

  1. EPA Section 608 Technician Certification

    Federal law requires all HVAC technicians who purchase or handle refrigerants to be certified under EPA Section 608 of the Clean Air Act. Certification is available in Type I (small appliances), Type II (high-pressure), Type III (low-pressure), and Universal categories. Certification is obtained through an EPA-approved testing organization such as ESCO Institute or NATE.

    Official government source

    $20–$60 (exam fee)1–2 weeks (exam scheduling)

  2. EIN (Employer Identification Number)

    Required if you have employees or operate as an LLC or corporation. Free from the IRS.

    Official government source

    FreeImmediate (online application)

State of Tennessee

1 stop

  1. Tennessee Board of Licensing Contractors — HVAC Contractor License

    Tennessee requires HVAC contractors to hold a Home Improvement Contractor or Contractor license from the Tennessee Board of Licensing Contractors. For HVAC-specific work, a licensed HVAC/R technician must be on staff. State exam and insurance required.

    Official government source

    $250 application fee + $75 exam fee6–10 weeks

City of Nashville / Davidson County

1 stop

  1. Metro Nashville — Mechanical Permit

    Nashville requires a mechanical permit for HVAC installation from the Metro Nashville Codes Administration. Contractors must be registered with the Metropolitan Government.

    Official government source

    $75–$400 per project1–3 weeks

Terminus

Open for business — est. $600–$2,000 · 7–12 weeks to obtain all licenses

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Official Sources

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