Louisiana plumber license & renewal
The requirements, the timing and the official sources. Everything we’ve verified, in one place.
Before you begin
Agency guidance
Plumbing work valued at $10,000 or more, including labor and materials, also requires the commercial plumbing contractor license.
Verified 2026-10-24 — source and quotation
If you are performing plumbing work valued at $10,000 or more including labor and materials, the law requires that you also hold a commercial plumbing licenseOfficial source
Agency guidance
Master plumber plans systems and supervises journeymen; journeyman is board-licensed, supervised by a master and employed by an employing entity.
Verified 2026-10-24 — source and quotation
A "master plumber" is a natural person who possesses the necessary qualifications and knowledge to plan and lay out plumbing systems ... A "journeyman plumber" ... is licensed as such by the board; is supervised by a master plumber; and is in the employ of an employing entity.Official source
How to get this license
Use the agency’s requirements below to plan your next steps. Missing details stay marked.
Start with the licensing authority
Licensing board
State Plumbing Board of Louisiana; Louisiana State Licensing Board for Contractors for covered contracting work
Verified 2026-10-24 — source and quotation
a master plumber license with the State Plumbing Board of Louisiana ... a commercial plumbing license with the Louisiana State Licensing Board for Contractors
Official sourceOfficial agency page
Verified 2026-10-24 — source and quotation
State Plumbing Board of Louisiana Rules and Regulations
Official sourceCheck the qualifications
Experience
Journeyman examination: registered apprentice with 8,000 unindentured or 7,000 indentured hours under direct, constant on-the-job supervision of a licensed plumber, documented through payroll or W-2 plus pay stub.
Verified 2026-10-24 — source and quotation
registered as an apprentice with the board and have performed 8,000 hours as an unindentured apprentice or 7,000 hours as an indentured apprentice of manual labor of plumbing under the direct, constant on-the-job supervision of a licensed plumber ... official payroll documentation or W-2’s with an accompanying paycheck stub.
Official sourceInsurance
Master plumber: comprehensive general liability and property damage coverage of at least $500,000.
Verified 2026-10-24 — source and quotation
Insurance Requirements for Master Plumbers and Master Gas Fitters ... comprehensive general liability and property damage insurance in a minimum amount of $500,000.
Official sourceReview fees and apply
Application fee
Not verified yet
Exam fee
Not verified yet
License fee
Not verified yet
Apply with the agency
Not verified yet
Reciprocity
Not verified yet
Official sources and verification (7)
Last verified 2026-10-24. Each quotation supports the corresponding published value.
a master plumber license with the State Plumbing Board of Louisiana ... a commercial plumbing license with the Louisiana State Licensing Board for ContractorsOfficial source
Verified 2026-10-24
State Plumbing Board of Louisiana Rules and RegulationsOfficial source
Verified 2026-10-24
registered as an apprentice with the board and have performed 8,000 hours as an unindentured apprentice or 7,000 hours as an indentured apprentice of manual labor of plumbing under the direct, constant on-the-job supervision of a licensed plumber ... official payroll documentation or W-2’s with an accompanying paycheck stub.Official source
Verified 2026-10-24
Insurance Requirements for Master Plumbers and Master Gas Fitters ... comprehensive general liability and property damage insurance in a minimum amount of $500,000.Official source
Verified 2026-10-24
minimum of three and one half hours of study for residential plumbers and journeyman plumbers. One hour will be in the subjects of health protection, consumer protection or environmental protection, half hour shall include information concerning R.S. 37:1361, et seq., LAC 46:LV, and two hours covering current industry practices and codesOfficial source
Verified 2026-10-24
If you are performing plumbing work valued at $10,000 or more including labor and materials, the law requires that you also hold a commercial plumbing licenseOfficial source
Verified 2026-10-24
A "master plumber" is a natural person who possesses the necessary qualifications and knowledge to plan and lay out plumbing systems ... A "journeyman plumber" ... is licensed as such by the board; is supervised by a master plumber; and is in the employ of an employing entity.Official source
Verified 2026-10-24
Keep exploring.
Same license in other states
- Alabama
- Alaska
- Arizona
- Arkansas
- California
- Colorado
- Connecticut
- Delaware
- District of Columbia
- Florida
- Georgia
- Hawaii
- Idaho
- Illinois
- Indiana
- Iowa
- Kansas
- Kentucky
- Maine
- Maryland
- Massachusetts
- Michigan
- Minnesota
- Mississippi
- Missouri
- Montana
- Nebraska
- Nevada
- New Hampshire
- New Jersey
- New Mexico
- New York
- North Carolina
- North Dakota
- Ohio
- Oklahoma
- Oregon
- Pennsylvania
- Rhode Island
- South Carolina
- South Dakota
- Tennessee
- Texas
- Utah
- Vermont
- Virginia
- Washington
- West Virginia
- Wisconsin
- Wyoming
Last verified 2026-10-24.
Official sources (5)
Not legal or tax advice. Confirm with the official agency before filing.