Maine renewal guide
Trainee Plumber
If this license is up for renewal, this page gives you the fee, the timeline, and the items that usually hold the filing up.
See this alongside the other 14 Maine license pages we track.
Start here
What matters before you file.
Check the fee, the renewal window, and the documents or insurance records that can slow approval down.
Issuing authority
Renewal period
Every 24 months
Renewal fee
$100.00
Late penalty
$50.00
Bond requirement
No
Insurance requirement
No
Before you renew
Get the filing straight.
- 1
File with the board
File through Maine Plumbers' Examining Board and pay the $100.00 renewal fee once the supporting proof is ready.
Renew online - 2
Leave room for processing
Typical processing time is 14 days, so do not wait until the last minute.
If you miss the deadline, the late penalty is $50.00, with a 90-day grace period.
Detailed notes
The fine print is here.
Maine Trainee Plumber License
The Maine Plumbers' Examining Board's Trainee Plumber license is the required entry point for anyone assisting with plumbing installations in Maine. Working on plumbing without a valid license is a Title 32, Chapter 49 violation carrying civil penalties under Title 10, §8003-C.
No Exam Required — Just a Background Check
Unlike Journeyman and Master licenses, the Trainee Plumber license requires no examination. Apply to the Maine Plumbers' Examining Board with:
- Criminal background check ($21)
- Application fee: $121 ($100 license fee + $21 background check)
Once licensed, you must perform all plumbing work under the direct supervision of a licensed Journeyman Plumber or Master Plumber.
Two Years and 4,000 Hours Qualifies You for the Journeyman Exam
To advance to Journeyman Plumber, you need at least 2 years and 4,000 hours of work as a licensed Trainee under master supervision. Log your hours from day one — the Board verifies experience before approving Journeyman exam applications.
Renew Every Two Years — Let It Lapse and You Reapply from Scratch
- Renewal fee: $100 every 24 months
- Late fee: $50 for renewals filed within 90 days of expiration
- Beyond 90 days lapsed: you must reapply as a new applicant — there is no penalty-fee reinstatement window for Trainee licenses
- No continuing education required for renewal
Official links
Check the board or agency directly.
Required documents
- Background Check
Source notes
Maine Plumbers' Examining Board, Office of Professional and Occupational Regulation . Verified March 2026. https://www.maine.gov/pfr/professionallicensing/professions/plumbers-examining-board/licensing/individual-licenses
Rules move. Check Maine Plumbers' Examining Board again before you pay, renew, or schedule work around this requirement.
Related content
Keep exploring.
Other Maine licenses
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Next steps
Turn it into a handoff.
Once the rule is clear, these tools help you hand it off cleanly or turn it into a cost plan.
Printable checklist
Maine checklist
Use the checklist when you need the board link, required documents, and renewal notes in one handoff.
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Keep Trainee Plumber dates, proof, and official links with the rest of your license work.