Maine takes a unique approach to contractor licensing compared to most states. There is currently no statewide general contractor license in Maine. Instead, the state licenses specific trades — electricians, plumbers, and fuel technicians — through the Office of Professional and Occupational Regulation (OPOR), which operates under the Maine Department of Professional and Financial Regulation (DPFR). General contractors and other unlicensed trades are regulated at the municipal level through local business permits and building codes.
That said, Maine law does impose requirements on all contractors performing residential work. Under Title 10, Section 1487, any home construction contract exceeding $3,000 in materials or labor must be in writing and signed by both the contractor and the homeowner. Additionally, a major change is coming: LD 1226, the Maine Home Contractor Licensing Act, takes effect January 1, 2027, and will require residential contractors to obtain a state license for projects over $15,000.
This guide covers everything you need to know about Maine's current licensing structure for regulated trades, the written contract requirements for general contractors, and the upcoming 2027 licensing law that will reshape the industry.
Maine's Licensing Structure Overview
Maine's contractor regulation is split between state and local government. At the state level, three boards within OPOR regulate licensed trades:
- Electricians' Examining Board — licenses all electricians from apprentices to masters
- Plumbers' Examining Board — licenses all plumber classifications
- Maine Fuel Board — licenses oil burner technicians, solid fuel technicians, and propane/natural gas technicians
For general contractors, roofing contractors, siding installers, painters, and most other construction trades, there is no state license requirement. These contractors must comply with municipal permitting rules, which vary by town and city. Many Maine municipalities require a local business license and building permits but do not require a trade-specific contractor license.
However, all contractors performing residential work are subject to the home construction contract law under Title 10, Chapter 219-A, which governs written contracts, down payments, warranties, and dispute resolution.
Types of Contractor Licenses
Electrician Licenses
The Electricians' Examining Board issues the following license types:
- Apprentice Electrician — entry-level; works under supervision of a licensed electrician; no exam required
- Helper Electrician — assists licensed electricians with basic tasks under direct supervision
- Student Helper Electrician — for students enrolled in approved electrical programs
- Journeyman-In-Training Electrician — transitional license between apprentice and journeyman
- Journeyman Electrician — can perform electrical work independently; requires passing the journeyman exam and completing 8,000 hours of approved apprenticeship
- Master Electrician — can supervise journeymen and pull permits; requires passing the master exam and completing 4,000 hours as a licensed journeyman
- Limited Electrician — authorized for a specific scope of electrical work; requires 12 months of relevant experience or an approved training program
- Senior Master/Journeyman Electrician — reduced-fee license for electricians over age 70
The board also issues Electrical Permits and Single-Family Dwelling Certifications for homeowners performing work on their own properties.
Plumber Licenses
The Plumbers' Examining Board issues the following license types:
- Trainee Plumber — entry-level; works under supervision of a licensed master plumber
- Journeyman-In-Training — transitional license with additional experience
- Journeyman Plumber — can perform plumbing work independently; requires at least 2 years and 4,000 hours as a licensed trainee or 2,000 hours as a journeyman-in-training, plus passing the journeyman exam
- Master Plumber — can supervise journeymen, pull permits, and operate a plumbing business; requires at least 1 year and 2,000 hours as a licensed journeyman (or 4 years and 8,000 hours as a trainee), plus passing the master exam
Fuel Technician Licenses
The Maine Fuel Board issues licenses for heating system installation and service:
- Apprentice Oil Burner and/or Solid Fuel Technician — entry-level; works under supervision
- Journeyman Oil Burner and/or Solid Fuel Technician — can perform oil burner and solid fuel work independently
- Master Oil Burner and/or Solid Fuel Technician — can supervise technicians and operate a business
- Propane and Natural Gas Technician — requires completion of a board-approved course at a Maine community college or career/technical education center, plus passing an exam
- Limited Propane Energy Auditor
- Limited Oil Energy Auditor
- Limited Tank Installer
- Limited Wood Pellet Technician
Important note on HVAC: Maine does not issue a separate statewide HVAC contractor license. Instead, HVAC work is covered through the Fuel Board's licensing categories. Companies must have at least one licensed Master Technician for each fuel type they service (oil, solid fuel, propane, or natural gas).
Electrician License Requirements
Experience Requirements
- Journeyman Electrician: Completion of an approved apprenticeship program with 8,000 hours of documented work experience
- Master Electrician: 4,000 hours of work as a licensed journeyman electrician
- Limited Electrician: 12 months of relevant experience or completion of an approved training program in the specific field
Examination
All journeyman and master electrician candidates must pass an exam administered by PROV, Inc., the board's contracted testing provider.
- Journeyman Exam: 80 multiple-choice questions; passing score of 70%
- Master Exam: 100 multiple-choice questions; 4-hour time limit; passing score of 70%
Application Process
All applications are submitted through the OPOR online licensing portal. You will need to provide proof of experience hours, exam results (for journeyman and master), and pay the applicable fee.
Contact Information
- Address: 35 State House Station, Augusta, ME 04333-0035
- Phone: (207) 624-8457
- Email: electrician.board@maine.gov
- Inspectors: electrician.code@maine.gov
Plumber License Requirements
Experience Requirements
- Journeyman Plumber: Minimum 2 years with 4,000 hours as a licensed trainee plumber under a master plumber, OR minimum 2,000 hours as a licensed journeyman-in-training
- Master Plumber: Minimum 1 year with 2,000 hours as a licensed journeyman plumber, OR minimum 4 years with 8,000 hours as a licensed trainee plumber under a master plumber
Examination
Plumber exams are also administered by PROV, Inc.
- Journeyman Exam: 80 questions; 3-hour time limit; passing score of 70%
- Master Exam: 100 questions; 3-hour time limit; passing score of 75%
The exam fee is $65 for both journeyman and master plumber exams.
Application Process
As of January 1, 2024, the Plumbers' Examining Board requires all license applications, examinations, and renewals to be submitted through their online application system. Applications submitted by fax, mail, or email will not be processed and will not be returned.
You must pass a background check ($21 fee) as part of every application.
Contact Information
- Address: 35 State House Station, Augusta, ME 04333-0035
- Phone: (207) 624-8639
- Fax: (207) 624-8637
- Email: plumbers.board@maine.gov
Oil Burner and Fuel Technician Requirements
The Maine Fuel Board oversees licensing for oil burner, solid fuel, propane, and natural gas technicians.
Oil Burner and Solid Fuel Technicians
Technicians progress through three tiers: Apprentice, Journeyman, and Master. Each level requires documented experience hours under a higher-licensed technician and passing the applicable board examination.
Propane and Natural Gas Technicians
Applicants must complete a board-approved propane or natural gas course at a Maine community college, career and technical education center, or comparable institution. They must also pass a board-administered examination. All applications must include appropriate certificates and transcripts.
Contact Information
- Phone: (207) 624-8605
- Email: fuel.board@maine.gov
General Contractor Requirements (Current)
As of 2026, Maine does not require a state-level general contractor license. If you are a general contractor, roofing contractor, siding installer, painter, or similar trade not covered by the electrician, plumber, or fuel boards, here is what you need:
Business Registration
- Register your business with the Maine Secretary of State
- Obtain a local business license or permit from the municipality where you work
- Pull building permits as required by local code enforcement
Written Contract Law (Title 10, Section 1487)
Any home construction contract exceeding $3,000 in materials or labor must comply with Title 10, Section 1487. The contract must:
- Be in writing and signed by both the contractor and the homeowner
- Limit any down payment to no more than one-third (1/3) of the total contract price
- Include an express warranty of good workmanship
- Be provided to both parties before any work begins
- Require written change orders for any alterations that revise the contract price
Failure to comply with these contract requirements exposes the contractor to liability and can undermine their ability to enforce the contract or collect payment.
Dispute Resolution
Under Maine law, parties to a home construction contract may agree to resolve disputes through binding arbitration, non-binding arbitration, or mediation — with costs shared jointly.
LD 1226: The 2027 Residential Licensing Law
Effective January 1, 2027, LD 1226 (the Maine Home Contractor Licensing Act) will create a state-level licensing requirement for residential contractors. This is a major change for the industry in Maine.
Key Provisions
- Threshold: A state license will be required for residential construction projects exceeding $15,000
- Application fee: Up to $500
- Annual renewal fee: $250
- Insurance requirement: Up to $500,000 in general liability coverage, plus workers' compensation for all employees
- Continuing education: 6 hours per annual renewal cycle
- Penalties for non-compliance: Civil fines up to $10,000
- Lien restriction: Unlicensed contractors will be prohibited from filing mechanic's lien claims
New Residential Construction Board
The law creates a new Residential Construction Board within the Department of Professional and Financial Regulation. The nine-member board will include contractors, a municipal code enforcement officer, an attorney, a university representative, an architect, and two public members. The board will set standards of practice, administer exams, issue licenses, and approve educational programs.
Exemptions
- Work performed on your own home
- Emergency repairs
- Licensed professionals already governed by their own boards (electricians, plumbers, engineers, architects)
Violations will be treated as unfair trade practices under Maine consumer protection law. If you are a general contractor working in Maine, you should begin preparing now for compliance with the new licensing requirements.
Examination Requirements
Maine's trade licensing exams are administered by PROV, Inc. for both the Electricians' Examining Board and the Plumbers' Examining Board. Physical testing locations are available throughout Maine.
Electrician Exams
| Exam | Questions | Time Limit | Passing Score |
|---|---|---|---|
| Journeyman Electrician | 80 | Timed (contact PROV for details) | 70% |
| Master Electrician | 100 | 4 hours | 70% |
Plumber Exams
| Exam | Questions | Time Limit | Passing Score | Exam Fee |
|---|---|---|---|---|
| Journeyman Plumber | 80 | 3 hours | 70% | $65 |
| Master Plumber | 100 | 3 hours | 75% | $65 |
Candidates should review the applicable Candidate Information Bulletin available on each board's website for full testing rules, allowed reference materials, and scheduling instructions.
License Fees and Costs
Electrician License Fees
| License Type | Initial Fee | Biennial Renewal |
|---|---|---|
| Master Electrician | $150 | $150 |
| Journeyman Electrician | $150 | $150 |
| Senior Master Electrician (over 70) | $20 | $20 |
| Senior Journeyman Electrician (over 70) | $20 | $20 |
Plumber License Fees
| License Type | Application Fee | Biennial Renewal | Exam Fee |
|---|---|---|---|
| Trainee Plumber | $100 | $100 | N/A |
| Journeyman Plumber | $200 | $200 | $65 |
| Master Plumber | $200 | $200 | $65 |
All plumber applicants must also pay a $21 background check fee.
Fuel Technician License Fees
| License Type | License Fee | Biennial Renewal |
|---|---|---|
| Apprentice Oil Burner/Solid Fuel Technician | $40 | $40 |
| Journeyman Oil Burner/Solid Fuel Technician | $100 | $100 |
| Master Oil Burner/Solid Fuel Technician | $200 | $200 |
Upcoming Fees Under LD 1226 (Effective January 1, 2027)
| Fee | Amount |
|---|---|
| Residential Contractor License Application | Up to $500 |
| Annual Renewal | $250 |
Insurance and Bond Requirements
Workers' Compensation Insurance
Maine law requires every employer with one or more employees — full-time or part-time — to carry workers' compensation insurance. This applies to all construction contractors regardless of whether they hold a state license. Self-employed individuals with no employees are not required to carry workers' comp, but should be aware that general contractors hiring them as subcontractors may require proof of coverage.
Under Title 39-A, Section 105-A, construction contractors on public projects must provide documentation of workers' compensation coverage for all subcontractors and independent contractors on the job site.
Penalties for No Workers' Comp
Failing to carry required workers' compensation insurance is a Class D crime and carries fines up to $10,000 or 108% of the premium the employer would have paid, whichever is greater.
General Liability Insurance
While there is no state-mandated general liability insurance minimum for most contractors currently, many municipalities and commercial clients require proof of general liability coverage. Under the upcoming LD 1226, residential contractors will be required to carry up to $500,000 in general liability insurance.
Surety Bonds
Maine does not have a statewide surety bond requirement for contractors. However, some municipalities may require bonds for specific trades or large projects, and bonds are commonly required for public construction contracts.
License Renewal and Continuing Education
All state-licensed trade professionals in Maine renew on a biennial (every 2 years) cycle based on the date of first licensure.
Electrician Renewal
- Renewal fee: $150 (Master and Journeyman); $20 (Senior licenses, over age 70)
- Continuing education: 15 hours of National Electrical Code (NEC) coursework as adopted by the board, required before each renewal
- CE is not required for Apprentice, Journeyman-In-Training, and Helper licenses
- Maine has a CE reciprocity agreement with Massachusetts (effective April 21, 2017), meaning approved NEC courses completed in Massachusetts count toward Maine renewal
Plumber Renewal
- Renewal fee: $200 (Master and Journeyman); $100 (Trainee)
- Continuing education: There is currently no continuing education requirement for plumber license renewal in Maine
- Late renewal (up to 90 days): $50 late fee in addition to the renewal fee
- Lapsed renewal (90 days to 2 years): License fee plus $100 penalty fee
- Lapsed more than 2 years: Must reapply as a new applicant
Fuel Technician Renewal
- Renewal fees: $40 (Apprentice); $100 (Journeyman); $200 (Master)
- Late renewal (up to 90 days): $50 late fee
- Lapsed renewal (90 days to 2 years): License fee plus $100 penalty fee
- Lapsed more than 2 years: Must meet all requirements for new applicants
Upcoming: LD 1226 Renewal (Effective 2027)
- Annual renewal fee: $250
- Continuing education: 6 hours per annual renewal cycle
Reciprocity with Other States
Electrician Reciprocity
Under Title 32, Section 1206, Maine will issue an electrician license to any person licensed in another state, provided:
- The applicant has been licensed and actively engaged in electrical work for a minimum of 8,000 hours
- The other state has licensing standards and experience requirements at least equivalent to Maine's
- The other state grants similar reciprocal privileges to Maine-licensed electricians
Vermont, in particular, has an established reciprocal arrangement with Maine for master and journeyman electricians.
Plumber Reciprocity
Under Title 32, Section 3504-A, Maine will grant a plumbing license to applicants from other states if:
- The other state's requirements are equal to or greater than Maine's
- The other state offers the same privilege to Maine-licensed plumbers
The board reviews the applicant's exam type, passing scores, and experience requirements before approving reciprocity. There is no blanket list of approved states — each application is reviewed individually.
NASCLA
Maine does not participate in the NASCLA (National Association of State Contractors Licensing Agencies) accredited examination program. Since Maine has no general contractor license, the NASCLA exam is not applicable. For trade-specific licenses, Maine uses its own board-approved exams administered by PROV, Inc.
How to Verify a Contractor's License
You can verify any Maine-licensed contractor through the official OPOR Licensee Search tool. This covers all licenses, registrations, and permits managed by the state.
How to Search
- Go to https://www.pfr.maine.gov/almsonline/welcome.aspx
- Select whether you are searching for an individual or a company
- Search by name or license number
- Review the license status, granted authorities, and any disciplinary actions
License Status Codes
- ACTIVE — currently authorized to operate
- EXPIRED — formerly held a license; did not renew
- INACTIVE — not currently authorized to operate
- PENDING — application received but not yet processed
- TERMINATED — no longer authorized after termination date
Important: Since Maine does not license general contractors at the state level (until 2027), the lookup tool only covers electricians, plumbers, and fuel technicians. For general contractors, check with the local municipality where the work is being performed.
General OPOR Contact
- Phone: (207) 624-8603
- Email: prof.lic@maine.gov
- TTY: Maine relay 711
Penalties for Working Without a License
Working without a required license in Maine carries both criminal and civil penalties under Title 10, Section 8003-C.
Criminal Penalties
- First offense (Class E crime): Intentionally, knowingly, or recklessly practicing without a license, or representing yourself as authorized to practice when you are not. Class E crimes in Maine carry penalties of up to 6 months in jail and fines up to $1,000.
- Repeat offense within 3 years (Class D crime): A second conviction within 3 years of the prior offense elevates the charge. Class D crimes carry up to 364 days in jail and fines up to $2,000.
Civil Penalties
- Civil fine: Not less than $1,000 and not more than $5,000 per violation, enforceable in District Court or Superior Court
- Injunction violations: If the Attorney General obtains an injunction and the contractor violates it, the fine is up to $10,000 per violation
- Restitution: Courts may order the unlicensed practitioner to pay restitution for any ascertainable loss suffered by consumers
- Legal costs: Courts may require payment of investigation and litigation costs, including attorney's fees
Workers' Compensation Violations
Separately, contractors who fail to carry required workers' compensation insurance face a Class D crime charge and fines up to $10,000 or 108% of the unpaid premium, whichever is higher.
Upcoming Under LD 1226 (2027)
Once the new residential contractor licensing law takes effect, unlicensed residential contractors performing work over $15,000 will face civil fines up to $10,000 and will be barred from filing mechanic's lien claims. Violations will be classified as unfair trade practices under Maine consumer protection law.
Frequently Asked Questions
Do I need a license to be a general contractor in Maine?
Not until January 1, 2027. Currently, Maine does not require a state-level general contractor license. You need only a local business license and applicable building permits from the municipality where you work. However, once LD 1226 takes effect, you will need a state license for residential projects over $15,000.
What trades require a state license in Maine right now?
Three categories of trades require state licensing: electricians (through the Electricians' Examining Board), plumbers (through the Plumbers' Examining Board), and oil burner/solid fuel/propane/natural gas technicians (through the Maine Fuel Board). All three boards operate under OPOR.
Do I need a written contract for every job in Maine?
A written contract is required by law for any home construction project exceeding $3,000 in materials or labor, per Title 10, Section 1487. The contract must be signed by both parties, limit down payments to one-third of the total, and include a warranty of good workmanship. It is best practice to use written contracts for all jobs regardless of dollar amount.
Can I transfer my electrician or plumber license from another state to Maine?
Maine offers reciprocity for both electricians and plumbers, but it is not automatic. Your home state must have licensing requirements at least equivalent to Maine's and must extend the same reciprocal privilege to Maine licensees. Each application is reviewed by the respective board on a case-by-case basis. Contact the Electricians' Examining Board or Plumbers' Examining Board before applying.
How do I get an HVAC license in Maine?
Maine does not issue a separate HVAC license. HVAC work is regulated through the Maine Fuel Board. You need a license for the specific fuel type you service — oil, solid fuel, propane, or natural gas. Companies must have at least one licensed Master Technician for each fuel type they handle.
What happens if I work without a required license in Maine?
You face criminal charges (Class E crime for a first offense, Class D for repeat offenses within 3 years), civil fines of $1,000 to $5,000 per violation, potential injunctions, and possible restitution orders. After 2027, unlicensed residential contractors also lose the right to file mechanic's liens.