Thinking about a stable, hands-on career with strong demand and solid pay? Becoming a licensed plumber in Louisiana could be your ideal path. With infrastructure constantly needing maintenance and new construction booming across cities like New Orleans, Baton Rouge, and Shreveport, skilled plumbers are in high demand. If you’re wondering how to become a licensed plumber in Louisiana, you’re in the right place—we’ll walk you through every requirement, timeline, and tip to succeed.
What Are the Basic Requirements to Become a Licensed Plumber in Louisiana?
Before you pick up your first wrench, you need to meet Louisiana’s eligibility criteria set by the Louisiana State Licensing Board for Contractors (LSLBC), which oversees plumbing licensing (note: plumbing falls under the “Mechanical” classification).
To qualify for an apprentice registration (your first step), you must:
Be at least 18 years old
Have a high school diploma or GED
Be legally authorized to work in the U.S.
Pass a background check (certain criminal convictions may disqualify you)
Unlike some states, Louisiana does not issue a standalone “journeyman plumber” license. Instead, plumbers typically work under a licensed contractor until they’re ready to become licensed plumbing contractors themselves.
💡 Pro Tip: While not legally required for apprentices, completing a vocational program from a trade school (like Delgado Community College or Louisiana Tech) significantly boosts your job readiness and exam success.
Step-by-Step Guide: How to Become a Licensed Plumber in Louisiana
Step 1: Register as a Plumbing Apprentice
You must register with the LSLBC as an apprentice before working on any plumbing projects for pay. This costs $50 and must be renewed annually. You’ll need:
Proof of employment with a licensed plumbing contractor
Completed application
Signed supervision agreement
Apprenticeships in Louisiana typically last 4–5 years, during which you’ll log at least 8,000 hours of hands-on experience (roughly 2,000 hours per year).
Step 2: Complete Classroom or Technical Training (Recommended)
While not mandatory, the LSLBC strongly recommends 500+ hours of classroom instruction in plumbing theory, code compliance, safety, and blueprint reading. Many trade schools and community colleges offer programs approved by the U.S. Department of Labor’s Office of Apprenticeship.
For example:
South Louisiana Community College offers a 2-year associate degree in plumbing technology.
Louisiana Workforce Commission partners with local unions for paid apprenticeship programs.
📚 Did You Know? According to the U.S. Bureau of Labor Statistics (2024), plumbers in Louisiana earn a median annual wage of $56,200, with top earners making over $80,000—especially in metro areas.
Step 3: Gain Experience Under a Licensed Contractor
All your on-the-job training must be supervised by a licensed mechanical (plumbing) contractor. Keep detailed logs of your hours—LSLBC may audit them. Tasks you’ll perform include:
Installing water supply and drainage systems
Reading plumbing blueprints
Diagnosing leaks and blockages
Ensuring compliance with the Louisiana State Plumbing Code (based on the IPC—International Plumbing Code)
Step 4: Apply for the Plumbing Contractor License Exam
After 4+ years of verified experience, you can apply to take the Louisiana Plumbing Contractor Exam. Requirements include:
Minimum 4 years of full-time plumbing experience
At least one year as a foreman or supervisor
$100 application fee
Certificate of liability insurance ($100,000 minimum)
Once you pass, submit proof of insurance and pay the $150 licensing fee. Your license must be renewed every two years, and you’ll need to complete 6 hours of continuing education per cycle.
Types of Plumbing Licenses in Louisiana
Apprentice Registration
Entry-level workers
18+, employed by licensed contractor
Mechanical (Plumbing) Contractor License
Business owners or independent plumbers
4+ years experience, pass exam, insurance
Reciprocity License
Out-of-state plumbers
From states with equivalent standards (e.g., Texas, Mississippi)
❗ Important: Louisiana does not offer reciprocity with all states. Check the LSLBC’s current reciprocity list before applying.
Pros and Cons of Becoming a Licensed Plumber in Louisiana
✅ Pros:
High job security: Plumbing is recession-resistant.
Strong earnings: Experienced plumbers earn 20–30% above state average wages.
Entrepreneurial opportunity: Start your own plumbing business with a contractor license.
Short training path: No 4-year degree needed.
❌ Cons:
Physically demanding: Involves lifting, crawling, and working in tight spaces.
Irregular hours: Emergency calls (e.g., burst pipes) often occur nights/weekends.
Licensing complexity: No journeyman tier can confuse newcomers.
FAQ: How to Become a Licensed Plumber in Louisiana
Q: How long does it take to become a licensed plumber in Louisiana?
A: Typically 4 to 5 years, including apprenticeship and exam preparation. If you attend trade school, you may complete classroom hours faster, but on-the-job experience is non-negotiable.
Q: Do I need a license to do plumbing work in Louisiana?
A: Yes—anyone doing plumbing for compensation must be registered as an apprentice or hold a Mechanical (Plumbing) Contractor License. Homeowners can do their own plumbing, but not for hire.
Q: Can I work as a plumber in Louisiana with an out-of-state license?
A: Only if your home state has a reciprocity agreement with Louisiana. As of 2025, Louisiana has limited reciprocity with neighboring states. You’ll still need to pass the business/law portion of the LA exam.
Q: How much does it cost to get a plumbing license in Louisiana?
A: Total costs range from $300 to $700, including:
Apprentice registration ($50/year)
Exam fee ($100)
License fee ($150)
Insurance and training (varies)
Q: Are there plumbing unions in Louisiana?
A: Yes! The United Association (UA) Local 245 in New Orleans offers union apprenticeships with paid training, benefits, and guaranteed work hours.
Q: What’s the difference between a plumber and a plumbing contractor in Louisiana?
A: There’s no “journeyman” license. So, all independent plumbers must hold a contractor license. If you’re not licensed, you can only work under a licensed contractor as an apprentice or employee.
Conclusion
Now you know exactly how to become a licensed plumber in Louisiana—from registering as an apprentice to passing your contractor exam. With steady demand, competitive pay, and the chance to build your own business, plumbing offers a rewarding career without student debt or years in college.
If this guide helped you, share it with someone exploring a trade career! And don’t forget to follow Louisiana’s official LSLBC website for updates on code changes or exam schedules.
🛠️ Your future starts with one pipe at a time. Get trained. Get licensed. Get to work.
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