Maine renewal guide
Master 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
$200.00
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 $200.00 renewal fee once the supporting proof is ready.
Renew online - 2
Leave room for processing
Typical processing time is 30 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 Master Plumber License
A Master Plumber license from the Maine Plumbers' Examining Board is required to run a plumbing contracting business in Maine. Any plumbing contractor must either hold this license or employ someone who does. Performing plumbing work without a valid license is a Title 32, Chapter 49 violation carrying civil penalties under Title 10, §8003-C.
Supervise Journeymen, Direct Trainees, and Perform All Plumbing Scopes
Master Plumbers may plan, supervise, and perform all types of plumbing installations — residential, commercial, and industrial. You may also direct licensed Journeyman Plumbers and Trainee Plumbers working under your supervision.
Qualifying Requires a Journeyman License and One Year of Journeyman Experience
To sit for the Master Plumber exam, you need a valid Maine Journeyman Plumber license plus at least 1 year and 2,000 hours of journeyman-level plumbing work. Submit to the Maine Plumbers' Examining Board:
- Master Plumber exam results
- Proof of journeyman experience (1 year / 2,000 hours minimum)
- Criminal background check ($21)
- Application fee: $221 ($200 license fee + $21 background check)
Renew Every Two Years — No Continuing Education Required
Maine does not require continuing education for Master Plumber renewals. File renewal with the Maine Plumbers' Examining Board before your expiration date.
- Renewal fee: $200 every 24 months
- Late fee: $50 for renewals filed within 90 days of expiration
- Penalty fee: $100 added to the $200 renewal fee for filings 91 days to 2 years past expiration
- Beyond 2 years lapsed: reapply and requalify as a new applicant
Official links
Check the board or agency directly.
Required documents
- exam_results
- proof_of_experience
- 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
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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 Master Plumber dates, proof, and official links with the rest of your license work.