Contractor Licensing in Maine: Which Trades Need a License
Yes, Maine requires a statewide license for 3 of 5 contractor trades, issued by 3 separate agencies. Initial costs run $196 to $386.
Maine does not require a statewide license for general contractors or roofing contractors. The state licenses electricians through the Electricians' Examining Board, plumbers through the Plumbers' Examining Board, and HVAC/oil burner technicians through the Maine Fuel Board — all under the Office of Professional and Occupational Regulation (OPOR). Maine participates in the National Electrical Reciprocal Alliance (NERA) for electrician license reciprocity.
General Contractor
Not requiredOversees and manages construction projects, coordinating subcontractors, materials, and timelines for residential and commercial builds.
View full requirements →Electrician
RequiredInstalls, maintains, and repairs electrical wiring, systems, and fixtures in residential, commercial, and industrial settings.
View full requirements →Plumber
RequiredInstalls and repairs water supply lines, drainage systems, fixtures, and appliances in buildings and other structures.
View full requirements →HVAC Technician
RequiredInstalls, services, and repairs heating, ventilation, air conditioning, and refrigeration systems.
View full requirements →Roofing Contractor
Not requiredInstalls, repairs, and replaces roofing systems on residential and commercial structures.
View full requirements →Reciprocity Agreements
Maine has reciprocity agreements with 2 states. Licensed contractors from these states may be eligible to skip certain exams. Full Maine reciprocity guide: which states, what is waived, what it costs →
Maine Licensing Overview
Maine requires statewide licensing for 3 of 5 contractor trades. The licensed trades — electrician, plumber, hvac technician — are regulated by 3 separate agencies: Electricians' Examining Board, Office of Professional and Occupational Regulation (EEB/OPOR), Plumbers' Examining Board, Office of Professional and Occupational Regulation (PEB/OPOR), Maine Fuel Board, Office of Professional and Occupational Regulation (MFB/OPOR). General Contractor and Roofing Contractor licensing is handled at the city and county level rather than statewide. Across all licensed trades, initial costs range from $196 to $386, including application fees, exams, license issuance, fingerprinting, and any other fees the state requires to obtain the license. Maine also participates in reciprocity agreements with 2 other states, which can streamline the process for out-of-state contractors.
Maine Contractor License Cost Summary
| Trade | Application | Exam | License | Bond | Est. Total |
|---|---|---|---|---|---|
| General Contractor | Local — no statewide fees | ||||
| Electrician | $96 | $75 | $80 | — | $272 |
| Plumber | $100 | $65 | $200 | — | $386 |
| HVAC Technician | $21 | $75 | $100 | — | $196 |
| Roofing Contractor | Local — no statewide fees | ||||
Estimated totals include application, exam, license, and fingerprinting fees, plus any other fees the state requires to obtain the license. Bond amounts are separate and typically paid as an annual premium.
Set up the business before you apply in Maine
Most states license the company as well as the person, so the application usually asks for an LLC or corporation and a registered agent in Maine. Northwest forms the entity and acts as your registered agent — a flat fee, no upsell funnel.
Some links below are affiliate links. If you buy through them we may earn a commission at no extra cost to you.
Form an LLC with Northwest→Key Facts About Maine Contractor Licensing
- Workers comp required for employers with one or more employees. GL insurance strongly recommended but not state-mandated.
- Maine does not require a statewide license for general contractor or roofing contractors. Local permits may still apply.
- Maine has reciprocity agreements with 2 states, which may allow licensed contractors to skip certain exams.
- Maine participates in the National Electrical Reciprocal Alliance (NERA)
- 15 hours of NEC code-based CE required per renewal cycle
- Senior discount available for electricians over age 70
You're licensed in Maine — the next 30 days
Most of the steps below are required before your first paid job; the order is the order the state and its counties will ask for them.
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Form the business and get an EIN.
The Electricians' Examining Board, Office of Professional and Occupational Regulation issues the Journeyman Electrician / Master Electrician; the business that invoices Maine customers is a separate decision. A sole proprietorship is the default, an LLC keeps business liability off your personal assets, and either needs an EIN before the first payroll. Settle it before the license number goes on an estimate.
Carry general liability insurance.
Maine does not set a general liability minimum for this trade, but most permits and commercial customers ask for proof of GL cover. Workers' compensation is required once you hire employees. Contractor insurance requirements→
Set up quoting, scheduling and invoicing before the first call.
Your first customers will ask for a written estimate and expect to pay by card on site. Most one-truck home-service businesses run that on field-service software; Housecall Pro is the one we link because it is built for this size of company and this link carries 20% off your first 12 months. Start a free trial of Housecall Pro→
Frequently Asked Questions
Does Maine require a contractor license?
Yes, Maine requires statewide licensing for 3 of 5 trades: electrician, plumber, hvac technician. General Contractor and Roofing Contractor do not require a statewide license.
How much does a contractor license cost in Maine?
Initial licensing costs range from $196 to $386 depending on the trade, including application, exam, license and fingerprinting fees, plus any other fees the state requires to obtain the license.
Does Maine have license reciprocity with other states?
Yes, Maine has reciprocity agreements with 2 states. Licensed contractors from these states may be eligible to skip certain exams or have an expedited application process.
What trades require a state license in Maine?
Maine requires statewide licenses for: electrician, plumber, hvac technician. General Contractor and Roofing Contractor licensing is handled at the local level.
Do I need workers compensation insurance in Maine?
Workers comp required for employers with one or more employees. GL insurance strongly recommended but not state-mandated.
Official Maine Licensing Resources
- Electricians' Examining Board, Office of Professional and Occupational Regulation (EEB/OPOR) — for electrician
- Plumbers' Examining Board, Office of Professional and Occupational Regulation (PEB/OPOR) — for plumber
- Maine Fuel Board, Office of Professional and Occupational Regulation (MFB/OPOR) — for hvac technician