Commercial Mechanical Contractor - Heat, Air Conditioning, Ventilation, Duct Work and Refrigeration (subclassification 6.1) / Mechanical major classification (6)
Mechanical · State license · Louisiana State Licensing Board for Contractors (LSLBC)
- Renewal cycle
- Every year
- Continuing education
- Not required
- Deadline rule
- Expires on the anniversary of the original issue date (R.S. 37:2156(H)). Renew online for a 1-, 2- or 3-year term (licenses that depend on insurance or certifications cannot choose multi-year terms). Renewal opens 60 days before expiration; the board emails reminders at 60 and 15 days before.
Show fees, grace period, bond and insuranceHide fees, grace period, bond and insurance
- Grace period
- 15 days after the expiration date to file the renewal without a delinquent fee (R.S. 37:2156(H)).
Fees, approximate
- Renewal fee
- Check the official site for the fee.
- Late fee
Show the details (amounts are approximate)
Delinquent fee (statutory cap about $50) if the renewal application is filed more than 15 days after expiration (R.S. 37:2156(C)(4), (H)); the amount is set by the Board.- Reinstatement
Show the details (amounts are approximate)
A license not renewed within one year after expiration can no longer be renewed; a new license application is required (R.S. 37:2156(J)). Trade exams are not retaken if the qualifying party and classifications are unchanged.
Fees change. Check the official site for the exact amount.
Why approximate?
Boards change fees often and some charge extra processing fees. We show a recent amount so you can plan.
- Bond
- Not required
- Insurance
- Not required
- Reciprocity
- Out-of-state companies may request reciprocity using the board's Reciprocity Request Form completed by the other state's board (trade exam waiver); the board does not list states on its public pages.
Notes
A mechanical contractor license is required for HVAC/refrigeration/mechanical work with a value over $10,000 (labor plus materials) (R.S. 37:2150.1). There is no separate state HVAC technician license; EPA 608 applies federally. A mechanical contractor performing plumbing work over $10,000 must also hold a State Plumbing Board master plumber license. Statewide mechanical, electrical and plumbing contractors are exempt from local competency exams (R.S. 37:2156.1(I)), though local permit fees and occupational license taxes still apply. Statute caps the renewal fee at $100 and the delinquent fee at $50 (R.S. 37:2156(C)); the Board sets the actual amount each July (LAC 46:XXIX.131); the amount due is shown on your renewal notice and in the contractor portal. An additional classification costs $95 per year. The Board adds a $100-per-year construction-education assessment to each renewal (R.S. 37:2156(K)); the renewal form lets the contractor opt out.
Sources (7)
- https://lslbc.gov/renew-your-license/
- https://lslbc.gov/faq/
- https://legis.la.gov/Legis/Law.aspx?d=93573
- https://legis.la.gov/Legis/Law.aspx?d=93574
- https://lslbc.gov/wp-content/uploads/blue_book_08012026_final.pdf
- https://lslbc.gov/continuing-education/
- https://lslbc.gov/wp-content/uploads/2025/07/Adding-a-Classification-to-an-Existing-License-1.pdf