Louisiana HVAC License Requirements (2026)

Louisiana’s State Licensing Board for Contractors (LSLBC) regulates HVAC contracting through the major Mechanical classification (6) and the Heat, Air Conditioning, Ventilation, Duct Work, and Refrigeration subclassification (6.1, often called HVACR). The Mechanical scope is broader; it includes HVACR as well as hydraulic, pneumatic, hydronic, steam, process-piping, and related systems. Classification 6.1 covers installation, maintenance, and repair of air conditioning, ventilation, refrigeration, coolers, freezers, and ice rinks. LSLBC says a Mechanical or HVACR license is required when project value exceeds $10,000. It does not issue a separate statewide individual HVAC technician or journeyman credential in the reviewed materials; verify local permit or personnel requirements and separate federal refrigerant rules where applicable.

Regulatory Body

Authority over this credential rests with Louisiana State Licensing Board for Contractors (LSLBC), which issues and polices it under La. R.S. 37:2150 et seq.; Louisiana Administrative Code contractor rules.. LSLBC licenses commercial contractor classifications, reviews financial/background qualifications, and requires qualifying parties to meet Business and Law and classification requirements.

Official portal: https://lslbc.louisiana.gov/
Address: 600 North Street, Baton Rouge, LA 70802
Phone: (225) 765-2301

Eligibility Requirements

This guide does not establish a minimum applicant age; confirm any age requirement with the issuing authority. Applicants must provide a Social Security Number. Use the current LSLBC commercial-license application for entity-registration and identity requirements. This audit does not state an unsupported general residency or registered-agent rule.

Good moral character

The applicant, principals, and qualifying parties undergo a background investigation that may consider identification, criminal history, and financial history. LSLBC may deny approval for cause.

Background investigation

Each principal and designated qualifying party completes the application and background investigation requested by LSLBC.

Experience and Education

Rather than a set number of years, the cited materials define eligibility through LSLBC requires a qualifying party for each classification and the Louisiana Business and Law requirement. The reviewed current statute and LSLBC classification page do not support the former guide’s fixed five-year HVAC experience rule; follow the current application and classification-specific trade-exam instructions..

Accepted proof of experience or eligibility

Current LSLBC commercial-license application
Qualifying-party documentation required for Mechanical (6) or HVACR (6.1)
Financial statement and bank/credit documentation requested by LSLBC
Current background, business, and insurance documents required by the application

Education substitution

No fixed HVAC education-to-experience substitution was substantiated in the reviewed current LSLBC sources.

Exam Requirements

Testing provider or authority: LSLBC and its current examination provider.. The following examination requirements cover the pathways described in this guide; follow each part's classification, waiver, and local-scope conditions. Unpublished format details do not remove an examination requirement:

Mechanical (6) or HVACR (6.1) trade examination — question count: confirm with the authority, timing: confirm with the authority, passing score: confirm in the current candidate bulletin

Examination fee: LSLBC’s current sources direct applicants to its application and examination materials for fees. The statute caps the basic license fee at $100, but this audit does not claim unsupported fixed examination or course fees.

Retake policy: Follow current LSLBC/provider instructions; this audit does not state unsupported fixed scores, question counts, waits, or application-validity terms.

Insurance and Bonds

There is no statewide surety bond tied to this credential in the cited record. Bonding can still surface at the project level — permit, license, or public-works bonds — so check before you bid.

General liability

The reviewed current commercial Mechanical/HVACR sources require the financial and workers’ compensation documents described by LSLBC but do not substantiate the former guide’s fixed statewide commercial general-liability minimum. Contract documents must state any required insurance certificates and liability coverage where insurance is required; project owners or local jurisdictions may impose additional insurance conditions.

Workers' compensation

LSLBC’s contractor licensing materials require proof of workers’ compensation coverage. Determine the business’s obligation and any exemption directly under Louisiana workers’ compensation law.

Additional financial requirements

Every license applicant submits a financial statement current within 12 months, prepared and signed by an accountant, bookkeeper, or CPA and signed by the applicant. Commercial licenses and subclassifications require $50,000 net worth, or the applicant may use an irrevocable letter of credit for the required amount plus any negative net worth.

Fee Schedule

Fee	Amount
Application	No separate amount recorded; confirm in the fee guidance
Initial license	$100
Renewal (every year)	$100

To turn these board fees into a realistic year-one budget — bond premium, liability insurance, and exam prep included — open the cost calculator preloaded for Louisiana hvac.

Renewal and Continuing Education

The Louisiana Mechanical or HVACR Contractor (LSLBC) must be renewed every year. The fee to renew is presently $100. LSLBC commercial licenses renew annually. The statute authorizes a basic license fee of no more than $100 and allows reasonable late-renewal penalties; verify the live renewal amount and deadline.

Continuing education: This audit found no current LSLBC general Mechanical/HVACR continuing-education requirement. Follow the current renewal notice and maintain all licensing conditions.

Downloadable Asset

2026 Louisiana HVAC License Roadmap (PDF) — a printable step-by-step checklist for the application process.

Download the PDF roadmap →

Reciprocity

Louisiana grants no NASCLA reciprocity for this classification.

Reciprocal State	Accepted Exam	Conditions
No formal bilateral reciprocity agreements identified.

This audit found no current primary-source list supporting the former named-state HVAC reciprocity agreements. Do not assume an out-of-state HVAC credential waives Louisiana’s qualifying-party, Business and Law, trade-exam, or financial requirements without written LSLBC confirmation.

Weighing more than one jurisdiction? The national hub compares published HVAC license requirements by state — exam, bond, fee, and experience thresholds side by side.

HVAC Licensing in Neighboring States

Contractors working near a state line, or weighing where to qualify first, should compare Louisiana's requirements against the bordering jurisdictions before committing to an application:

Arkansas HVAC License Requirements — Arkansas HVACR Class A and Class B Contractor License
Mississippi HVAC License Requirements — Mississippi HVAC Contractor License
Texas HVAC License Requirements — Texas Air Conditioning and Refrigeration Contractor License (Class A or Class B)

Step-by-Step Application Roadmap

Select Mechanical or HVACR scope. Use Mechanical (6) for its broader listed systems. Use HVACR (6.1) for the specific heating, air-conditioning, ventilation, ductwork, and refrigeration subclass scope.
Check the $10,000 threshold. LSLBC says Mechanical and HVACR work requires licensing when the value exceeds $10,000. Measure the project as required by current LSLBC guidance before bidding or contracting.
Create the application package. Submit the current entity, principal, qualifying-party, background, and financial information LSLBC requests.
Meet financial responsibility requirements. Provide a current financial statement and demonstrate $50,000 net worth or the permitted irrevocable-letter-of-credit alternative.
Complete Business and Law and trade requirements. The qualifying party must complete the Louisiana Business and Law course and pass the classification trade examination when one is required.
Provide workers’ compensation evidence. Provide the current workers’ compensation information required by LSLBC and ensure the business satisfies state coverage law.
License, contract, and renew. License in the applied entity name, use written contracts containing the statutory information, maintain records, notify LSLBC of specified changes, and renew annually.

Application Checklist

Have each of the following squared away before the packet goes to LSLBC:

Common Filing Mistakes

The errors below are the ones that most frequently cost Louisiana HVAC applicants time, drawn from the cited board guidance.

Using the wrong threshold

Mechanical and HVACR work is licensed above $10,000, not only at the ordinary $50,000 commercial-project threshold.

Treating HVACR as the same as full Mechanical

Mechanical is broader; choose the classification that actually matches the planned work.

Inventing a five-year experience rule

Use current LSLBC qualifying-party and examination materials instead of the unsupported prior figure.

Using an outdated $10,000 net-worth standard

Current commercial classifications require $50,000 net worth or the permitted letter-of-credit alternative.

Treating state licensure as refrigerant authorization

Check applicable federal refrigerant rules and local permit requirements separately.

Study and Reference Materials

The list below collects the board's cited references and the materials applicants typically study from. CLR is not paid to recommend any of them.

Current LSLBC Mechanical/HVACR classification material — LSLBC. Use the current classification description and examination direction to choose the correct scope.
LSLBC Business and Law course — LSLBC. Required for all license applicants according to the Board’s FAQ.
Louisiana R.S. 37:2150 et seq. and current LSLBC rules — Louisiana Legislature / LSLBC. Primary contractor threshold, financial, application, contract, and renewal rules.

Other Louisiana Trade Licenses

CLR maintains guides for additional Louisiana trades; the published ones are listed here:

Frequently Asked Questions

Which Louisiana HVAC classification do I need?

Mechanical (6) covers the broader listed mechanical systems. HVACR (6.1) is the subclassification for air conditioning, ventilation, refrigeration, coolers, freezers, and ice rinks.

When is an LSLBC HVAC license required?

LSLBC states that Mechanical and HVACR work requires a license when the project value exceeds $10,000.

Does Louisiana require five years of HVAC experience?

The current sources reviewed for this guide do not substantiate that fixed requirement. LSLBC requires a qualifying party, Business and Law course, and the classification’s trade requirements; use the current application for any requested qualification evidence.

What financial requirement applies?

Commercial licenses and subclassifications require $50,000 net worth, supported by a financial statement current within 12 months, or a permitted irrevocable letter of credit.

Does the contractor license replace refrigerant certification?

No. The LSLBC contractor license is separate from any applicable federal refrigerant-handling rules and local permits.

Primary Sources

Regulatory requirements on this page are drawn from the official board, statute, and exam-provider materials listed below.

Verified 2026-09-04 · Next scheduled review 2026-12-03

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Corrections and presentation updates

2026-09-30: Corrected examination detection when format details are unpublished and updated the summary layout and requirements score. Source-check dates are unchanged.
2026-09-08: Shared template updated to distinguish unspecified eligibility requirements, retain cost qualifications, and use consistent headings. Source-check dates are unchanged by presentation updates.
2026-09-21: Local-only guides now use a compliance-focused structure and terminology instead of implying a statewide license application. Source-check dates are unchanged by this presentation update.