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How to become a plumber in Oklahoma

The license steps in Oklahoma, from apprentice to master or contractor, taken from the official licensing pages – plus pay, apprenticeships and where to apply.

The short answer

In Oklahoma you register as a plumbing apprentice and work under a licensed journeyman or contractor, qualify for the journeyman exam after three years of experience with a licensed plumbing contractor (school hours can substitute for up to two years), and need one more year of experience to qualify for the plumbing contractor license.

The steps in Oklahoma

  1. 1

    Start as an apprentice

    Anyone doing plumbing work as a helper must be registered as an apprentice and directly supervised by a licensed journeyman or contractor, and registered apprentice hours count toward the journeyman experience requirement.

  2. 2

    Earn your journeyman (first independent) license

    The journeyman plumber license requires three years of plumbing experience while employed by a licensed plumbing contractor (an approved 1,000-classroom-hour program can substitute for two years) and an exam given by a third-party testing vendor.

  3. 3

    Master or contractor license

    Oklahoma has no master plumber license; the plumbing contractor license requires meeting the journeyman requirements plus one additional year of plumbing experience.

  4. 4

    Keep your license current

    Journeymen and contractors must complete six hours of continuing education within the 36 months before their license expires.

Who licenses plumbers in Oklahoma

Oklahoma Construction Industries Board. License types we found: Plumbing Contractor, Journeyman Plumber, Apprentice Plumber.

Official application page

Already licensed? Anyone can check a license on cibverify.ok.gov.

Licensed in another state?

A verifiable out-of-state plumbing license that is current and in good standing can be used to meet the journeyman experience requirement.

Finding an apprenticeship

Most plumbers learn the trade through a 4- or 5-year apprenticeship, with about 2,000 hours of paid on-the-job training each year plus classroom instruction, according to the Bureau of Labor Statistics. The U.S. Department of Labor’s Registered Apprenticeships are paid jobs with progressive wage increases, classroom instruction and a portable, nationally recognized credential; programs are approved by the Department of Labor or a State Apprenticeship Agency. Search programs at apprenticeship.gov, or ask local plumbing contractors and union locals.

Pay and job outlook

$63,800

Median yearly pay for plumbers, pipefitters and steamfitters, May 2025 (BLS).

7%

Projected job growth from 2025 to 2035, with about 42,000 openings a year (BLS).

4-5 years

Typical apprenticeship, with about 2,000 hours of paid on-the-job training a year (BLS).

National figures from the BLS Occupational Outlook Handbook; pay varies by state and city.

Already a plumber in Oklahoma?

43 plumbing businesses are listed on Plumbers Pages so far. Add your business free, or see plumbers in Oklahoma.

Sources

Requirements come from Oklahoma’s official licensing pages and statutes, checked October 2026. Rules change – confirm with the licensing office before you apply.

  1. oklahoma.gov/cib/your-industry/plumbing/plumbing-apprentice.html
  2. oklahoma.gov/cib/your-industry/plumbing/plumbing-journeyman.html
  3. oklahoma.gov/cib/your-industry/plumbing/plumbing-contractor.html
  4. oklahoma.gov/cib/your-industry/plumbing.html
  5. oklahoma.gov/cib.html
  6. U.S. Bureau of Labor Statistics – Plumbers, pipefitters and steamfitters
  7. U.S. Department of Labor – Apprenticeship.gov for career seekers

General information, not legal advice. All states · How we write our guides

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