Contractor Licensing Requirements in Maine

Maine takes a lighter regulatory approach to construction than most states: there is no general contractor license issued by the state. Instead, Maine licenses specific trades statewide, most notably electricians and plumbers, while general building and remodeling contractors are typically governed by local municipal permitting and building codes. This page breaks down exactly who needs a state license in Maine, who doesn’t, and what’s changing soon.

Maine’s Contractor Licensing System

Unlike states with a single statewide general contractor license, Maine’s Office of Professional and Occupational Regulation (OPOR), part of the Department of Professional and Financial Regulation, licenses individual trades through dedicated boards, including the Electricians’ Examining Board and the Plumbers’ Examining Board. General, residential, and remodeling contractors are not licensed at the state level; instead, they typically register or obtain permits through the city or town where the work is performed. That is changing soon: LD 1226, the Maine Home Contractor Licensing Act, is set to take effect January 1, 2027, and will require residential contractors to hold a state license for projects over $15,000.

License Classes in Maine

• Electrical: Helper, Apprentice, Limited Electrician, Journeyman Electrician, and Master Electrician (five tiers issued by the Electricians’ Examining Board)
• Plumbing: Journeyman-in-Training, Journeyman Plumber, and Master Plumber (issued by the Plumbers’ Examining Board), plus separate subsurface wastewater/site evaluator credentials
• Oil & Solid Fuel: Technician licenses issued by the Maine Fuel Board for heating equipment installation and service
• General/Residential Contractors: no state license class exists today; contractors instead follow municipal permitting requirements (this will change under the incoming Home Contractor Licensing Act effective 2027)

Exam & Experience Requirements

Trade licenses require passing a state exam administered through OPOR’s boards. The Journeyman Electrician exam covers 80 questions in three hours, while the Master Electrician exam covers 100 questions in four hours; both require documented apprenticeship or on-the-job hours before an applicant can sit for the test. Plumbing candidates must score at least 70% on the journeyman exam or 75% on the master exam, following required work experience under a licensed plumber.

NASCLA Reciprocity

Maine is not a member of the NASCLA reciprocity program, and because there is no statewide general contractor exam, there is nothing for NASCLA’s commercial license reciprocity to apply to for general building work.

Bonding & Insurance to Get Licensed

Maine’s trade boards generally require proof of liability insurance as part of the licensing application for electricians and plumbers working independently. General contractors aren’t required to carry state-mandated coverage today, but most municipalities, lenders, and clients expect proof of general liability insurance before awarding work.

For exact GL and workers’ comp dollar minimums required to get licensed, see Insurance Minimums to Get Licensed.

Reciprocity with Other States

Maine does not have blanket reciprocity agreements for electrical or plumbing licenses with other New England states; out-of-state licensees generally must apply and, in many cases, sit for a Maine-specific exam or provide proof of equivalent experience and licensure to the relevant board.

Maine Licensing Fees & Timeline

Penalties for Unlicensed Contracting

Under Maine Title 32, performing licensed electrical or plumbing work without the proper license, or employing an unlicensed person to do it, is a violation subject to board enforcement action and civil penalties; separately, contractors who ignore the Home Construction Contracts Act’s written-contract rule for jobs over $3,000 face automatic exposure to unfair trade practice claims, including the homeowner’s attorney’s fees.

Resources: Maine OPOR – Electricians’ Examining Board Licensing, Maine OPOR – Plumbers’ Examining Board Individual Licenses, Maine Attorney General – Home Construction and Repair

Frequently Asked Questions

Licensing rules and fees change; verify current requirements with the Maine Department of Professional and Financial Regulation before applying.