Plumber License Requirements in Maine
| Licensing Authority | Plumbers' Examining Board, Office of Professional and Occupational Regulation (PEB/OPOR) |
| License Type | Journeyman Plumber / Master Plumber |
| Experience Required | Journeyman: 4,000 hours (2 years) as licensed Trainee or 2,000 hours (1 year) as Journeyman-in-training. Master: 2,000 hours (1 year) as licensed Journeyman or 8,000 hours (4 years) as Trainee under Master. |
| Education Substitute | Approved plumbing apprenticeship program may satisfy experience requirements |
| Exam Required | Yes — Journeyman Plumber Exam + Master Plumber Exam |
| Bond Required | No |
| Insurance | General liability: recommended. Workers comp: required with employees |
| Continuing Education | Not required |
| Processing Time | 4-6 weeks |
Fee Breakdown
| Application Fee | $100 |
| Exam Fee | $65 |
| Initial License Fee | $200 |
| Fingerprinting | $21 |
| Est. Initial Total | $386 |
Renewal: $200 every 2 years
Exam Requirements
Journeyman Plumber Exam
Master Plumber Exam
Exam provider: PROV Inc.
Recommended exam prep
Formal prep pays for itself against a $100+ retake. Many states examine contractors on two separate papers — the trade exam and a business and law exam — so we list the course covering both first, with trade-specific depth after.
Some links below are affiliate links. If you buy through them we may earn a commission at no extra cost to you.
Mometrix · SponsoredContractor License Online Study CourseFull online prep course covering the trade and business-and-law exams — video lessons, practice questions, and a study plan built for a first-try pass.See the course →
Mometrix · SponsoredPlumber's Exam Secrets Study GuideCovers plumbing code, systems, and installation for the journeyman and master plumber exams — organized topic reviews plus practice questions for a first-try pass.See the study guide →
Mometrix · SponsoredPlumber's Exam FlashcardsPortable flashcards for the high-frequency plumber-exam topics — a cheaper add-on for drilling code references and terms on the go.See the flashcards →License Tiers
Trainee Plumber
Entry level — registered with the Examining Board
Exam: Not required
Journeyman Plumber
4,000 hours (2 years) as licensed Trainee or 2,000 hours as Journeyman-in-training
Exam: Required
Master Plumber
2,000 hours (1 year) as Journeyman or 8,000 hours (4 years) as Trainee under Master
Exam: Required
Notes
- Trainee application fee is $100
- All license types require background check ($21)
Frequently Asked Questions
Do I need a plumber license in Maine?
Yes, Maine requires a statewide plumber license through the Plumbers' Examining Board, Office of Professional and Occupational Regulation.
How much does a plumber license cost in Maine?
The estimated initial cost is $386, including application, exam, and license fees.
What experience do I need for a plumber license in Maine?
Journeyman: 4,000 hours (2 years) as licensed Trainee or 2,000 hours (1 year) as Journeyman-in-training. Master: 2,000 hours (1 year) as licensed Journeyman or 8,000 hours (4 years) as Trainee under Master. Education substitute: Approved plumbing apprenticeship program may satisfy experience requirements
What exams are required for a plumber license in Maine?
You must pass the Journeyman Plumber Exam and Master Plumber Exam exams. A passing score of 70% Journeyman / 75% Master is required. Exams are administered by PROV Inc..
How long does it take to get a plumber license in Maine?
Processing time is typically 4-6 weeks after submitting a complete application.
Is continuing education required for plumbers in Maine?
No, Maine does not currently require continuing education for plumber license renewal.
Next steps
You know the requirements for plumbers in Maine— here's how to actually pass and apply.
Data last verified: 2026-07-08 | Source: PEB/OPOR