Louisiana HVAC Contractor License

To get a HVAC contractor license in Louisiana, apply with the Louisiana State Licensing Board for Contractors (LSLBC), designate a qualifying party, pass the Louisiana Business & Law exam and the HVAC trade exam, meet insurance if doing residential work, and pay statutory fees. Licensing is required for mechanical/HVAC projects of $10,000+.

Requirements last verified: 2026-10-14

How to get a HVAC contractor license in Louisiana

1. Decide your scope and thresholds. Confirm your typical HVAC project values; licensing is required for mechanical/HVAC work at $10,000+ total value. EMP threshold.
2. Form your business and designate a qualifying party. Register your entity with the Louisiana Secretary of State, then name a qualifying party (owner or full‑time employee) for Business & Law and the HVAC classification. R.S. 37:2156.1(D).
3. Apply online with LSLBC. Start the application, upload required documents, and pay fees in the Contractor Portal. Apply; Portal.
4. Schedule and pass exams. After approval, your qualifying party schedules HVAC and Business & Law exams with PSI and tests per the LSLBC outlines. PSI scheduling; HVAC outline.
5. Provide insurance (if doing residential/home improvement). Submit certificates for workers’ compensation (if required) and at least $100,000 general liability before LSLBC issues the residential or home improvement license. R.S. 37:2167(B)(1); LSLBC checklist.
6. Receive license and verify classifications. Ensure “Mechanical/HVAC” appears on the license; add Plumbing if your HVAC scope includes plumbing ≥$10,000. Mechanical note.
7. Renew on time. Watch for LSLBC renewal emails; choose a 1‑, 2‑, or 3‑year term and keep insurance current for residential scopes. Renewal.

Louisiana HVAC contractor license: key details and tips

The LSLBC issues both commercial and residential/specialty licenses. For HVAC contractors focusing on homes, the residential pathway also requires proof of general liability and, when applicable, workers’ compensation. See the official initial license checklist and the LSLBC FAQs to understand qualifying party duties and thresholds. If you’re budgeting, our breakdown of HVAC contractor license costs in Louisiana explains state fees, exam charges, and typical third‑party expenses.

Exams you must pass for the Louisiana HVAC classification

Your qualifying party takes two exams: the Louisiana Business & Law exam and the HVAC trade exam (Heat, Air Conditioning, Ventilation, Ductwork & Refrigeration). LSLBC transitioned test delivery to PSI on August 5, 2025—use the PSI portal to view content outlines and schedule. PSI scheduling; HVAC outline; LSLBC Exams.

Insurance and compliance for residential HVAC work

Before LSLBC issues or renews a residential construction or home improvement license, submit workers’ compensation (if you have employees) and at least $100,000 general liability directly from your insurance agent to LSLBC. Keep certificates current to avoid renewal delays. R.S. 37:2167(B)(1); LSLBC checklist.

Project thresholds and add‑on classifications

Louisiana enforces strict thresholds and scoping rules. Mechanical/HVAC jobs at or above $10,000 require licensure, and splitting a project to avoid licensing is prohibited. If your HVAC scope includes plumbing ≥$10,000, you must also hold the plumbing classification. EMP threshold; Mechanical note; R.S. 37:2158 (valuation/dividing work).

Fees, payment, and renewal timing

Louisiana law caps the main charges: $50 per exam (including Business & Law and each trade classification), $100 for license issuance, $100 per renewal term, and up to a $50 delinquent fee. Renew on your anniversary and you may select a 1‑, 2‑, or 3‑year term. An optional $100 dedication may appear on renewals and can be declined. §§2156, 2168; R.S. 37:2156(J); Renewal.

Exploring another regulated trade in Louisiana? Our guide to the Private Investigator License process in Louisiana pairs well with HVAC firms adding investigative due diligence to internal operations.

Frequently Asked Questions

Do I need a Louisiana HVAC license for small residential jobs?

If the total value of your mechanical/HVAC work is under $10,000, the state contractor license isn’t triggered by the EMP threshold. Once the mechanical/HVAC scope hits $10,000 or more (labor + materials), an LSLBC license with the proper classification is required. LSLBC EMP threshold.

Is there a set number of years or hours required to become the HVAC qualifying party?

No fixed experience hour total is listed in statute. Instead, your company must designate a qualifying party who passes the required exams (and holds any outside credentials if a classification requires them). R.S. 37:2156.1(D); LSLBC Exams.

What insurance do I need for residential HVAC work?

Residential construction/home improvement applicants and licensees must submit proof of workers’ compensation (as applicable) and at least $100,000 general liability to LSLBC at application and renewal. Certificates are sent directly by your agent. R.S. 37:2167(B)(1); LSLBC checklist.

How are Louisiana HVAC exams delivered and scheduled?

After LSLBC approves your application, PSI handles test registration, locations, and seating. Review PSI’s content outlines, then schedule both the HVAC trade and Business & Law exams. PSI scheduling.

When and how do I renew my HVAC contractor license?

Licenses renew on your anniversary date; you can choose a 1‑, 2‑, or 3‑year term and complete renewal online via the Contractor Portal. Maintain insurance for residential scopes to avoid processing holds. LSLBC Renewal.

Ready to move forward? License Navigator can help you map fees, exams, and forms—start with our in‑depth Louisiana HVAC license cost breakdown and get personalized next steps.