Plumber License Requirements in Idaho
| Licensing Authority | Division of Occupational and Professional Licenses — Plumbing Board (DOPL) |
| License Type | Plumbing Contractor |
| Experience Required | Journeyman: 8,000 hours work experience and 576 hours classroom instruction as a registered apprentice. Contractor: Must hold a journeyman plumber license. |
| Education Substitute | Accredited plumbing or mechanical engineering program may reduce apprenticeship hours |
| Exam Required | Yes — Plumbing Journeyman Exam + Plumbing Contractor Exam |
| Bond Required | Yes — $2,000 |
| Insurance | General liability: required. Workers comp: required with employees |
| Continuing Education | Not required |
| Processing Time | 2-4 weeks |
Fee Breakdown
| Application Fee | $35 |
| Exam Fee | $75 |
| Initial License Fee | $147 |
| Est. Initial Total | $257 |
Exam Requirements
Plumbing Journeyman Exam
Plumbing Contractor Exam
Exam provider: PSI
License Tiers
Plumbing Apprentice
Must register before beginning work
Exam: Not required
Journeyman Plumber
8,000 hours work experience + 576 hours classroom instruction
Exam: Required
Plumbing Contractor
Must hold journeyman license
Exam: Required
Frequently Asked Questions
Do I need a plumber license in Idaho?
Yes, Idaho requires a statewide plumber license through the Division of Occupational and Professional Licenses — Plumbing Board.
How much does a plumber license cost in Idaho?
The estimated initial cost is $257, including application, exam, and license fees. A $2,000 surety bond is also required.
What experience do I need for a plumber license in Idaho?
Journeyman: 8,000 hours work experience and 576 hours classroom instruction as a registered apprentice. Contractor: Must hold a journeyman plumber license. Education substitute: Accredited plumbing or mechanical engineering program may reduce apprenticeship hours
What exams are required for a plumber license in Idaho?
You must pass the Plumbing Journeyman Exam and Plumbing Contractor Exam exams. A passing score of 70% is required. Exams are administered by PSI.
Do I need a bond for a plumber license in Idaho?
Yes, a $2,000 surety bond is required. $2,000 compliance surety bond required for plumbing contractors, must be maintained throughout licensing period.
How long does it take to get a plumber license in Idaho?
Processing time is typically 2-4 weeks after submitting a complete application.
Is continuing education required for plumbers in Idaho?
No, Idaho does not currently require continuing education for plumber license renewal.
Data last verified: 2026-04-02 | Source: DOPL