Louisiana HVAC License Requirements

Official classification: Mechanical classification (statewide, LSLBC) · Issued by the Louisiana State Licensing Board for Contractors (LSLBC).

❄️ HVACLA ✔ Verified 2026-06-22

In Louisiana, HVAC contractors must hold the Mechanical classification (statewide, LSLBC), issued by the Louisiana State Licensing Board for Contractors (LSLBC), and no state surety bond is required. Full requirements — experience, exams, fees, insurance, renewal and reciprocity — are detailed below.

How to become a licensed HVAC contractor in Louisiana

Follow these steps to earn your Mechanical classification (statewide, LSLBC). Every figure is verified against the Louisiana State Licensing Board for Contractors (LSLBC); full detail for each step is further down the page.

Build the required experience. No fixed statutory hour requirement; the company's qualifying party must pass the Mechanical Work trade exam. Louisiana licenses HVAC through the LSLBC company classification (no separate individual statewide HVAC license).
Pass the Mechanical Work trade examination and Louisiana Business and Law examination (50 questions) exams. Providers, passing scores and fees are in the Exams section below.
Check the insurance rules. Liability: Not mandated for commercial classifications (commercial applicants are exempt from the board insurance filing). Workers' compensation: Required under LA Title 23 if you have employees; filed for residential/home-improvement work.
Clear the background check. The board's background investigation covers identification, criminal history and financial history (La. R.S. 37:2156.1(C)); a contractor not domiciled in Louisiana may be charged up to $400 for it (37:2156(D)). No fingerprint check is specified.
Meet the credit / financial requirement. Financial statement showing net worth of at least $50,000 (current within 12 months); a shortfall may be covered only by an irrevocable letter of credit, not a bond (La. R.S. 37:2156.1(B)(2)).
Submit your application and fees. Apply through the Louisiana State Licensing Board for Contractors (LSLBC) — Statutory caps: examination $50, license $100, renewal $100, delinquent $50, home improvement $50 (La. R.S. 37:2156(C)); a contractor not domiciled in Louisiana may be charged up to $400 more for the background investigation (37:2156(D)). application fee, plus a $100 statutory cap per classification (additional classifications cost extra) license fee. Processing time: Variable; applications are acted on at scheduled board meetings.
Keep the license active. Renewal: 1, 2, or 3 years (licensee elects); expires on the anniversary of the issue date.

For the general path in every state, see the HVAC guide →

Louisiana HVAC contractor license lookup

To confirm an HVAC contractor is properly licensed in Louisiana — or to check the status of your own license — search the issuing agency's official license database. The record shows whether the license is active and in good standing.

Verify a license now: Search the official arlspublic.lslbc.louisiana.gov database →

License types

Mechanical (statewide classification) — HVAC, refrigeration, ventilation, hydronic, gas and process piping and other mechanical work where the value exceeds $10,000, on residential and commercial projects alike; a mechanical contractor doing plumbing work over $10,000 must also hold a master plumber license from the State Plumbing Board of Louisiana.

Requirements at a glance

Experience required	No fixed statutory hour requirement; the company's qualifying party must pass the Mechanical Work trade exam. Louisiana licenses HVAC through the LSLBC company classification (no separate individual statewide HVAC license).
Application fee	Statutory caps: examination $50, license $100, renewal $100, delinquent $50, home improvement $50 (La. R.S. 37:2156(C)); a contractor not domiciled in Louisiana may be charged up to $400 more for the background investigation (37:2156(D)).
License fee	$100 statutory cap per classification (additional classifications cost extra)
Renewal fee	$100 statutory cap
Renewal period	1, 2, or 3 years (licensee elects); expires on the anniversary of the issue date
Continuing education	None required for commercial classifications
Bond required	No board-mandated surety bond. An applicant short of the $50,000 net-worth requirement may cover the shortfall only with an irrevocable letter of credit, not a bond (La. R.S. 37:2156.1(B)(2)).
Liability insurance	Not mandated for commercial classifications (commercial applicants are exempt from the board insurance filing)
Property damage	—
Workers' comp	Required under LA Title 23 if you have employees; filed for residential/home-improvement work
Background check	The board's background investigation covers identification, criminal history and financial history (La. R.S. 37:2156.1(C)); a contractor not domiciled in Louisiana may be charged up to $400 for it (37:2156(D)). No fingerprint check is specified.
Credit requirement	Financial statement showing net worth of at least $50,000 (current within 12 months); a shortfall may be covered only by an irrevocable letter of credit, not a bond (La. R.S. 37:2156.1(B)(2)).
Reciprocity	As of 2024, LSLBC accepts any out-of-state exam passed without waiver or exemption in the same classification — there is no fixed reciprocal-state list, and the business/law portion is never waived. · compare all states
Processing time	Variable; applications are acted on at scheduled board meetings.

What a Louisiana hvac license costs

Application fee	Statutory caps: examination $50, license $100, renewal $100, delinquent $50, home improvement $50 (La. R.S. 37:2156(C)); a contractor not domiciled in Louisiana may be charged up to $400 more for the background investigation (37:2156(D)).
License fee	$100 statutory cap per classification (additional classifications cost extra).
Mechanical Work trade examination	$50 statutory cap per classification exam.
Louisiana Business and Law examination (50 questions)	$50 statutory cap.
Surety bond	No board-mandated surety bond. An applicant short of the $50,000 net-worth requirement may cover the shortfall only with an irrevocable letter of credit, not a bond (La. R.S. 37:2156.1(B)(2)).
Renewal fee	$100 statutory cap.
Renewal period	1, 2, or 3 years (licensee elects); expires on the anniversary of the issue date.

Exams

Mechanical Work trade examination	Provider: PSI · Passing: Not publicly disclosed · Fee: $50 statutory cap per classification exam
Louisiana Business and Law examination (50 questions)	Provider: LSLBC Contractor Licensing Portal (online) · Passing: 70 out of 100 · Fee: $50 statutory cap

Renewing a Louisiana HVAC contractor license

The Mechanical classification (statewide, LSLBC) renews on a fixed cycle set by the Louisiana State Licensing Board for Contractors (LSLBC). Late and lapsed renewals are handled differently by every board, so check the renewal page linked below before the deadline passes.

Renewal period	1, 2, or 3 years (licensee elects); expires on the anniversary of the issue date
Renewal fee	$100 statutory cap
Continuing education	None required for commercial classifications
Where to renew	Louisiana State Licensing Board for Contractors (LSLBC)

Local / municipal notes

Mechanical/HVAC work up to $10,000 generally does not require LSLBC licensure. The statewide license preempts local/parish exam requirements.

Frequently asked questions

How much does a Louisiana hvac license cost?

Application: Statutory caps: examination $50, license $100, renewal $100, delinquent $50, home improvement $50 (La. R.S. 37:2156(C)); a contractor not domiciled in Louisiana may be charged up to $400 more for the background investigation (37:2156(D)). License: $100 statutory cap per classification (additional classifications cost extra). Renewal: $100 statutory cap.

How do I look up a hvac license in Louisiana?

Search the official license database at arlspublic.lslbc.louisiana.gov. The record shows whether the license is active and in good standing.

Do hvacs in Louisiana need a surety bond?

No board-mandated surety bond. An applicant short of the $50,000 net-worth requirement may cover the shortfall only with an irrevocable letter of credit, not a bond (La. R.S. 37:2156.1(B)(2)).

What experience is required for a Louisiana hvac license?

No fixed statutory hour requirement; the company's qualifying party must pass the Mechanical Work trade exam. Louisiana licenses HVAC through the LSLBC company classification (no separate individual statewide HVAC license).

Is insurance required for hvacs in Louisiana?

Liability: Not mandated for commercial classifications (commercial applicants are exempt from the board insurance filing). Workers' compensation: Required under LA Title 23 if you have employees; filed for residential/home-improvement work.

How long does it take to get a Louisiana hvac license?

Processing time: Variable; applications are acted on at scheduled board meetings.

Is a background check required for hvacs in Louisiana?

Background check: The board's background investigation covers identification, criminal history and financial history (La. R.S. 37:2156.1(C)); a contractor not domiciled in Louisiana may be charged up to $400 for it (37:2156(D)). No fingerprint check is specified.

Is there a credit or financial requirement for a Louisiana hvac license?

Credit requirement: Financial statement showing net worth of at least $50,000 (current within 12 months); a shortfall may be covered only by an irrevocable letter of credit, not a bond (La. R.S. 37:2156.1(B)(2)).

How often must a Louisiana hvac license be renewed?

1, 2, or 3 years (licensee elects); expires on the anniversary of the issue date. Continuing education: None required for commercial classifications.

Fees and rules change frequently (often annually). This page was last verified on 2026-06-22 — always confirm current requirements directly with the Louisiana State Licensing Board for Contractors (LSLBC) before applying. This is not legal advice.