Dreaming of a stable, in-demand career in the skilled trades? You’re not alone—plumbing is one of the fastest-growing professions in the U.S., and Indiana offers clear pathways to licensure. But if you’re wondering how to get a plumbing license in Indiana, you’ve probably hit confusing bureaucracy or outdated info. Don’t worry—we’ve got you covered. This guide walks you through every requirement, timeline, and tip you need to become a licensed plumber in the Hoosier State, based on the latest 2025 rules from the Indiana Professional Licensing Agency (IPLA).
What Types of Plumbing Licenses Exist in Indiana?
Indiana recognizes three main plumbing license levels, each with distinct responsibilities and requirements:
- Apprentice Plumber – Entry-level; works under direct supervision.
- Journeyman Plumber – Can work independently on most residential and commercial jobs.
- Master Plumber – Can design systems, pull permits, supervise others, and run a plumbing business.
💡 Note: Indiana does not require state-level licensing for apprentices—but you must register with the IPLA within 30 days of starting work.
Step-by-Step: How to Get a Plumbing License in Indiana
Step 1: Complete a Plumbing Apprenticeship (4–5 Years)
To qualify for a Journeyman license, you need at least 4 years (576 hours/year = 2,304 total hours) of hands-on experience under a licensed Master Plumber. Most apprentices also attend technical school or union training (e.g., through IUOE Local 103 or Ivy Tech Community College).
- Approved programs combine classroom instruction (e.g., blueprint reading, code compliance) with paid on-the-job training.
- Keep detailed logs of your work hours—these will be verified during your license application.
📊 According to the U.S. Bureau of Labor Statistics, Indiana employs over 6,200 plumbers, with job growth projected at 6% through 2030—faster than average.
Step 2: Apply for the Journeyman Plumber Exam
Once you’ve completed your apprenticeship, submit an application to the Indiana Professional Licensing Agency (IPLA).
Required documents:
- Proof of 4 years of plumbing experience
- Completed application form
- $50 application fee
- $90 exam fee
You can apply online via the IPLA portal .
Step 3: Pass the Indiana Journeyman Plumbing Exam
The exam is administered by PSI Services and covers:
- Indiana Plumbing Code (based on the 2021 IPC – International Plumbing Code)
- Drainage, venting, water supply, and gas piping
- Safety and backflow prevention
- Local amendments and regulations
- Format: 80 multiple-choice questions
- Passing score: 70%
- Time limit: 4 hours
✅ Pro Tip: Use the official PSI Candidate Handbook and study guides from the International Code Council (ICC). Many candidates also take prep courses through organizations like PlumbingExamPrep.com.
Step 4: Receive Your Journeyman License
If you pass, your license is issued within 2–3 weeks. You’ll receive a wallet card and can legally work independently on most plumbing projects in Indiana—except those requiring a Master Plumber (e.g., commercial high-rises or system design).
How to Upgrade to a Master Plumber License
After holding your Journeyman license for at least 1 year and gaining 1 additional year of supervised experience, you can apply for the Master Plumber exam.
Requirements:
- Total of 5 years of plumbing experience (including apprenticeship)
- Current Journeyman license in good standing
- $100 application + exam fee
The Master exam is more rigorous, with 100 questions covering advanced system design, code interpretation, and business practices.
🔗 For deeper context on plumbing codes, see the International Plumbing Code overview on Wikipedia .
Indiana Plumbing License Fees & Renewal
| Apprentice (Registration) | $10 | $10 | Every 2 years |
| Journeyman | $140 | $60 | Every 2 years |
| Master | $150 | $70 | Every 2 years |
- Licenses expire on June 30 of even-numbered years.
- Continuing Education: Not currently required in Indiana—but highly recommended to stay current with code updates.
Common Mistakes to Avoid
- ❌ Not registering as an apprentice within 30 days of starting work (fines up to $500).
- ❌ Submitting incomplete experience logs—IPLA rejects ~18% of applications for documentation errors (2024 IPLA report).
- ❌ Assuming local permits = state license—some cities (e.g., Indianapolis) have additional rules, but the state license is mandatory for all plumbers.
Pros vs. Cons of Getting Licensed in Indiana
| High demand—low unemployment in trade | 4+ years of training required |
| Median salary:$58,000/year(BLS 2024) | Exam fees and prep costs (~$300–$500) |
| Path to business ownership | No reciprocity with most other states |
| Job security—plumbing can’t be outsourced | Renewal paperwork every 2 years |
Frequently Asked Questions (FAQ)
Q: Do I need a license to do plumbing work in Indiana?
A: Yes. As of 2025, all plumbers performing work for compensation must hold at least a Journeyman license. Homeowners doing work on their own residence are exempt.
Q: Can I get a plumbing license in Indiana with experience from another state?
A: Indiana does not offer full reciprocity, but out-of-state experience may count toward your 4-year requirement if properly documented and verified.
Q: How long does it take to get a plumbing license in Indiana?
A: Typically 4 to 5 years, including apprenticeship. The exam and licensing process itself takes 4–8 weeks after application.
Q: Are there plumbing schools in Indiana that help with licensure?
A: Yes. Schools like Ivy Tech Community College, Vincennes University, and Lincoln Tech (Indianapolis) offer accredited plumbing programs that align with IPLA requirements.
Q: What happens if I work without a license?
A: Unlicensed plumbing is a Class B infraction in Indiana, punishable by fines up to $1,000 per violation and potential work stoppage orders.
Q: Can I renew my license online?
A: Yes! The IPLA offers online renewal through their portal. Just complete the form, pay the fee, and confirm your contact info.
Final Thoughts
Becoming a licensed plumber in Indiana is a smart, future-proof career move. While the process takes time and dedication, the payoff—job security, competitive pay, and entrepreneurial freedom—is well worth it. By following this guide, you’ll avoid common pitfalls and stay on track from apprentice to Master Plumber.
Ready to start your journey?
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Your future in plumbing starts with one pipe—and one license—at a time. 🛠️💧
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