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Plumber
Total cost: $286-$296
Governing Authority
Plumbers' Examining Board (under Office of Professional and Occupational Regulation, Department of Professional & Financial Regulation)
Official website →Yes
State Licensed?
8,000
Apprentice Hours
5
License Levels
$286-$296
Total Fees
None
CE Hours
Maine Internal Plumbing Code (state-specific, based on UPC/IAPMO)
Code Version
Get the Maine Plumber Roadmap — every step, fee, and deadline mapped out. — every step mapped out.
Get the Roadmap — $20Apprentice Registration Fee
$100 initial license fee; $100 biennial renewal fee
Trainee Plumber license fee; background check: $21 additional
Journeyman License Fee
$200
Journeyman plumber license fee
Master Plumber License Fee
$200
Master plumber license fee
Exam Fee
$65-$75
Exam fee (Prov, Inc.)
Renewal Fee
$200
Biennial; late fee: $50 (up to 90 days); penalty fee: $100 (90 days to 2 years, plus $200 license fee)
Regulation Status
VerifiedState Licensed
Yes
Regulation Level
state
License Types Available
State-Level Licensing Required
Regulated by the Plumbers' Examining Board (under Office of Professional and Occupational Regulation, Department of Professional & Financial Regulation)
Apprenticeship Program
8,000
Total Hours
4 yrs
Duration
576
Classroom Hours
7,424
OJT Hours
Registered Apprenticeship Program Required
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Experience Required
No prior experience; age 16+; Maine calls this a 'Trainee Plumber' license
No exam required
Additional Requirements
Experience Required
Path A: minimum 2 years / 4,000 hours as a licensed trainee plumber under supervision of a licensed master plumber; Path B: minimum 2,000 hours as a licensed journeyman-in-training under supervision of a licensed master plumber, within 4 years of J-i-T license issuance
Exam required
Additional Requirements
Experience Required
Path A: minimum 1 year / 2,000 hours as a licensed journeyman plumber; Path B: minimum 4 years / 8,000 hours as a licensed trainee plumber under supervision of a licensed master plumber
Exam required
Additional Requirements
Exam Information
VerifiedJourneyman Exam
RequiredMaster Exam
RequiredExam Provider
PROV, Inc.
Plumbing Code Version
Maine Internal Plumbing Code (state-specific, based on UPC/IAPMO)
Closed Book Exam
Passing Score
70%
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Overall licensing difficulty: 29/100
Study recommendation: 1–2 weeks of focused review is usually sufficient
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Plumber Licensing Exam
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Difficulty rating based on education, exam, and experience requirements. Individual experience may vary.
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Minimum Age
Education
Background Check
Insurance Required
Bonding Required
Not sure if you need a plumber license? Check whether your state requires one.
Maine has 24% above average — nationally the ratio is 1 per 746 residents.
Maine has above-average plumbers density — competitive market.
Maine ranks #13 out of 51 states by plumbers per capita.
| Fee | Amount |
|---|---|
Apprentice Registration Trainee Plumber license fee; background check: $21 additional | $100 initial license fee; $100 biennial renewal fee |
Journeyman License Journeyman plumber license fee | $200 |
Master License Master plumber license fee | $200 |
Exam Fee Exam fee (Prov, Inc.) | $65-$75 |
Renewal Fee Biennial; late fee: $50 (up to 90 days); penalty fee: $100 (90 days to 2 years, plus $200 license fee) | $200 |
Total Initial Fees Journeyman: trainee ($100+$21) + exam ($65-$75) + license ($200+$21) = $407-$417 across career; direct journeyman: exam + license + background = $286-$296 | $286-$296 |
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Renewal & CE Requirements
Verified2 years (biennial, based on first licensure date) for all license types
Renewal Period
—
CE Hours Required
$200
Renewal Fee
No CE Requirement
Biennial; based on first licensure date; late: $50 up to 90 days
Out-of-State Reciprocity
VerifiedAccepts Out-of-State Licenses
Transfer Type
Endorsement
Additional Requirements for Transfer
Most states require plumbers to pass the local exam or apply for endorsement when transferring an out-of-state license. Requirements vary by state.
Moving to another state? Use our Transfer Tool to see what you need →
Compare Maine with other states →
See how requirements, costs, and timelines differ across all 50 states.
Maine has a unique 'Journeyman-in-Training' license — a 4-year non-renewable license issued only once per person. No other state has this exact structure. Exams are closed-book with different passing scores (70% journeyman, 75% master).
Maine uses 'Trainee Plumber' instead of 'Apprentice' — minimum age 16
UNIQUE: 'Journeyman-in-Training' license — valid for a single NON-RENEWABLE 4-year period, issued only once per individual. Requires 1 year plumbing course at board-approved community college, OR 2-year career/tech program, OR registered DOL apprenticeship, plus passing the journeyman exam. Works under direct supervision.
Two paths to Journeyman: 4,000 hrs as Trainee OR 2,000 hrs as J-i-T (within 4 years)
Two paths to Master: 2,000 hrs as Journeyman OR 8,000 hrs as Trainee
Exams are CLOSED BOOK (different from many states)
Different passing scores: 70% journeyman, 75% master
Exam provider: Prov, Inc.
Uses Maine Internal Plumbing Code (state-specific, based on UPC/IAPMO)
No formal reciprocity — case-by-case evaluation only
CE requirements: CONFLICTING SOURCES — flagged for manual verification
Biennial renewal; Trainee licenses lapsed >90 days must reapply as new applicant
Background check fee: $21 for all license types
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Plumber requirements in Maine verified against Plumbers' Examining Board (under Office of Professional and Occupational Regulation, Department of Professional & Financial Regulation), April 2026.
Accessed 2026-03-24
Accessed 2026-03-06