How To Get a Plumbing License in 2024: 6 Simple Steps

How to get a plumbing license

If you’re thinking about a plumbing career, you’re in for a rewarding, hands-on profession that offers solid earning potential and job security. 

But here’s the deal: to unlock the best opportunities in the industry, you need a plumbing license. It’s not just a legal checkbox—it’s your ticket to better pay, bigger projects, and serious credibility.

This guide will walk you through exactly what it takes to become a licensed plumber in 2024. 

Whether you’re just starting out or aiming to level up your qualifications, you’ll find everything you need to know to get licensed and excel in the trade.

Table of Contents

Why Getting Licensed Matters

Let’s be honest—plumbing isn’t something people leave to chance. Clients want someone they can trust, and a plumbing license tells them you’re the real deal. Is it worth the effort? Yes, and here’s why:

  • Stay Legal: Most states require a license to work as a plumber. Without one, you could face hefty fines or even lose the right to work.
  • Earn More: Licensed plumbers—especially those with a master license—can pull in between $75,000 and $100,000 a year, depending on experience and location.
  • Secure Better Jobs: From government contracts to large commercial projects, the best gigs go to licensed professionals.
  • Build Trust: A license shows clients and employers you’ve mastered the trade and follow strict safety standards.
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The Three Levels of Plumbing Licenses

Plumbing isn’t a one-size-fits-all profession. Your license reflects your experience and the type of work you can take on:

  1. Apprentice License
    This is where it all begins. As an apprentice, you’ll learn the ropes under a licensed plumber while completing classroom training. It’s the perfect mix of theory and hands-on experience.
  2. Journeyman License
    After completing your apprenticeship and passing an exam, you can work independently. With a journeyman license, you’re free to tackle projects on your own.
  3. Master Plumber License
    Ready to lead? A master license qualifies you to manage teams, take on complex jobs, and even run your own plumbing business. It’s the top tier of the trade.

6 Steps to Getting Your Plumbing License

Licensing rules vary by state, but most plumbers follow these six steps to get licensed:

1. Meet the Education Basics

Most states require a high school diploma or GED as a starting point. Many plumbers also attend trade schools to get ahead. These programs cover essentials like math, blueprint reading, and plumbing fundamentals—skills you’ll use daily.

2. Find an Apprenticeship Program

Think of apprenticeships as on-the-job training with a paycheck. These programs, usually 2–5 years long, combine classroom lessons with practical experience.

Pro Tip: Check out local unions, trade associations, or contractors in your area to find a program that suits your goals.

3. Log Those Work Hours

Most states require between 4,000 and 8,000 hours of supervised work before you can apply for a license.

Keeping track of these hours can feel like a job in itself, but tools like Invoice Fly make it easy to document your work and stay organized.

4. Pass Your Licensing Exam

Licensing exams test your knowledge of plumbing codes, safety standards, and system design. Some states also require hands-on assessments to prove your skills in real-world scenarios.
Pro Tip: Study smarter: Use state-specific guides and practice tests to prepare.

5. Submit Your Application

Gather your documents—proof of education, work hours, and exam results—and submit them to your state’s licensing board. Fees range from $50 to $500, depending on where you live.

6. Keep Your License Current

Most licenses need renewing every 1–2 years, and some states require continuing education. Staying up-to-date ensures you remain compliant, knowledgeable and an expert in your trade.

How to get a plumbing license

State-Specific Licensing

As we mentioned earlier, licensing isn’t one-size-fits-all and differs state to state. Take a look at what to expect in a few key states:

California

    • License: C-36 Plumbing Contractor
    • Requirements: 4 years of journeyman experience and passing trade/business law exams.
    • Fees: $450 application, $200 for the initial license.
    • Renewal: Every 2 years, with continuing education.
    • Authority: California Contractors State License Board

Florida

Texas

    • License Levels: Tradesman (4,000 hours), Journeyman (8,000 hours), Master (additional experience).
    • Fees: $50–$75.
    • Renewal: Annually, with continuing education.
    • Authority: Texas State Board of Plumbing Examiners

New York

    • Management: Licensing is handled locally (e.g., NYC Department of Buildings).
    • Requirements (NYC): 7 years of work experience and passing exams.
    • Fees: Around $200.
    • Renewal: Varies by locality.
    • Authority: New York City Department of Buildings

Set Your Plumbing Business Up for Success

You can simplify your licensing journey with a few straightforward steps:

  • Keep Records: Use tools like Invoice Fly to track your work hours, expenses, and application deadlines.
  • Stay Informed: Licensing rules and plumbing codes can change—check your state’s guidelines regularly.
  • Specialize: Consider focusing on niches like eco-friendly plumbing or commercial systems to stand out in the market.
How to get a plumbing license

FAQs About Plumbing Licenses

Do I Need a License to Start a Plumbing Business?


Yes, a license is typically required to operate legally in most states.

Can I Transfer My License to Another State?


Some states have reciprocity agreements, but you may need to meet additional requirements or take an exam.

How Long Does It Take to Get a License?


On average, it takes 2–5 years, depending on your apprenticeship and state requirements.

What Happens If I Work Without a License?

You could face fines, lawsuits, and potential damage to your reputation—not to mention losing the chance to get licensed in the future.

Final Thoughts

Earning your plumbing license is a game-changer.

It’s your ticket to working on bigger projects, building trust with clients, and growing your business with confidence. This is your chance to take that next step and create the career you’ve been working toward.

Ready to streamline your operations and focus on growth?

Try Invoice Fly today to manage your invoices, track expenses, and simplify your business processes.

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Roger is a Digital Marketeer passioned about SaaS & Mobile App products.

He considers himself a geek about invoicing, accounting, and related topics. He loves helping out contractors, freelancers, and small business owners achieve their goals when running their businesses.