Overview
Plumbers install and repair water, gas, and drainage systems. Most states require a license for any plumbing work beyond minor repairs.
Journeyman and master plumber licenses.
^ TopLicense tiers and what each allows
| License | What you can do | Exam required |
|---|---|---|
| Apprentice | Training level. Work under supervision. No independent work. | Registration only |
| Journeyman Plumber | Install, repair, and maintain systems under supervision or independently in most states. | Yes. State licensing exam (~$55 fee) |
| Master Plumber | Full independent work, supervise others, pull permits, design systems. | Yes. Advanced state exam |
| Plumbing Contractor | Run a plumber business. Employ others. Bid on contracts. | Business license + proof of Master |
Step-by-step path
Register as an apprentice
Register with Oklahoma Construction Industries Board before starting work. This is required to legally accumulate supervised hours toward your journeyman qualification. Some states charge a small registration fee.
Accumulate 8,000 hours of supervised experience
Work under a licensed journeyman or master plumber. This takes approximately 4 years at full-time hours. Your employer is required to verify your hours when you apply for the journeyman exam.
Pass the journeyman licensing exam
The exam covers Uniform Plumbing Code (UPC) or International Plumbing Code (IPC) requirements and state-specific rules. Exam fee is $55. Most candidates study 4-8 weeks using a state-approved prep guide before sitting for the test.
Apply for your journeyman license
Submit your application to Oklahoma Construction Industries Board after passing the exam. License fee is $55. Processing typically takes 2-4 weeks. Your employer's verification of your hours is required at this stage.
Renew annual
Your Oklahoma license renews annual. Renewal fee is $55. Some states require continuing education at renewal. Always renew on time to avoid a lapse in licensure.
Fee summary
| Item | Fee |
|---|---|
| Apprentice registration | Varies (check board) |
| Journeyman exam | $55 |
| Journeyman license | $55 |
| License renewal (annual) | $55 |
Salary by experience level
Wages vary by license level, metro area, and union status. The estimates below reflect typical ranges nationally; Oklahoma wages are approximately $54,840/yr at journeyman level (BLS May 2024 median).
| Stage | Typical range | Notes |
|---|---|---|
| Apprentice | $17–$26/hr | Supervised training period; wage increases each year |
| Journeyman | $26–$42/hr | After licensure; independent work authorized |
| Master / Contractor | $42–$65/hr | Supervisory authority, permit rights, contractor eligibility |
Realistic timeline: start to licensed
Here is a realistic calendar for someone starting from scratch with no prior experience.
| Phase | Duration | What happens |
|---|---|---|
| Apprentice registration | 1–2 weeks | Register with state board or local UA apprenticeship program before accumulating hours. |
| Supervised hours | ~4 years | Work full-time under a licensed journeyman or master plumber accumulating 8,000 hours. |
| Exam preparation | 4–8 weeks | Study plumbing code (UPC or IPC) and state-specific rules. |
| Schedule and pass exam | 2–4 weeks | Schedule through PSI or Pearson VUE; results often available same day. |
| License application processing | 2–4 weeks | Submit application with verified hours and passing exam score. |
Union vs. independent path
Plumbers can pursue licensing through the UA (United Association) apprenticeship program or independently through employer on-the-job training. Both paths lead to the same state license — the difference is in how you accumulate your hours and the employment benefits you receive during training.
| Union (UA) | Non-union / independent | |
|---|---|---|
| Training program | 5-year UA apprenticeship, tuition-free | Employer OJT or private trade school |
| Wages during training | Starting at ~50% of journeyman scale, increasing annually | Varies by employer |
| Benefits | Full union benefits (health, pension) | Employer-dependent |
| Job placement | Union hall dispatch | Self-directed job search |
| Hour documentation | Tracked through UA program | Employer must verify |
| Post-license mobility | UA card recognized by signatory contractors nationwide | Depends on state reciprocity |
Transferring your license from another state
Most states do not have formal plumber license reciprocity agreements. Some states will accept documented out-of-state experience toward hour requirements. A few states participate in regional endorsement programs. Always contact the state licensing board directly before assuming your hours or license transfers.
If you currently hold a plumber license in another state and want to work in Oklahoma, contact the Oklahoma Construction Industries Board directly before applying. Bring documentation of your current license, your work history, and your exam scores — many boards will expedite review for out-of-state applicants with equivalent credentials.
Pipefitters and plumbers share roots in the UA union but work in different environments — see the Pipefitter license guide for Oklahoma if industrial pipe systems interest you.
General contractors manage plumbing subcontractors and need to understand licensing requirements — see the General Contractor guide for Oklahoma.
Exam registration & resources
Where to register for your licensing exam and track your application.
- PSI Exams — Schedule your plumber exam Most states use PSI for journeyman and master plumber exams. Create an account, find your state, and register. candidate.psiexams.com
- Pearson VUE — Plumbing licensing exams Some states use Pearson VUE for plumbing licensing exams. home.pearsonvue.com
- NASCLA — Multi-state contractor exams Plumbing contractor exams accepted across multiple states. nascla.org
Plumber Jobs in Oklahoma
Current openings near you — updated daily.
Job listings via Adzuna