Do you need a license to work as a plumber in Oklahoma?
Yes. In Oklahoma, anyone who acts as a plumbing contractor or offers the business of plumbing, or does the work of a journeyman plumber, must first qualify and be licensed under the Plumbing License Law of 1955, which the Construction Industries Board administers. Working without the license is a misdemeanor. The law does not apply to minor repairs such as replacing faucets or minor working parts of fixtures, or to an individual doing plumbing work on their own property of residence. A residential journeyman plumber license covers detached one- or two-family dwellings. This is 59 O.S. §§ 1003, 1012, 1017.
| What | Oklahoma |
|---|---|
| Plumber license | State plumbing contractor/journeyman license |
Source
Read the statute in the Oklahoma Statutes (Oklahoma State Courts Network): oscn.net.
Checked against the statute on November 13, 2026.
This is a summary of a published statute, not legal advice. Rules change, local ordinances can add to them, and the terms of a specific lease may differ. Check the citation and speak to a lawyer before acting.
How Seayora uses this rule
A contractor on Seayora keeps each license with its issuing state, its expiry date and the last four digits of its number, and the business is warned before one lapses — on the website and both phone apps. A customer finding a pro on Seayora sees whether a license is on file.
Guides on this rule
- Contractor License Requirements by State: Every Trade — Which states require a state license for electricians, plumbers, HVAC, general and home improvement contractors, with the statute for each.
Compare this rule in every state
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The same question in other states
- Alabama
- Alaska
- Arizona
- Arkansas
- California
- Colorado
- Connecticut
- Delaware
- District of Columbia
- Florida
- Georgia
- Hawaii