Massachusetts Contractor Licenses: Updated Requirements Guide
Massachusetts regulates contractors and trades at the state level through several boards and programs. Most building, remodeling, and trade work requires a state-issued credential such as a Construction Supervisor License (CSL), Home Improvement Contractor (HIC) registration, or a trade license for electrical, plumbing, gas fitting, sheet metal, or refrigeration work.
Understanding how these credentials fit together is essential: the CSL covers building code supervision for structures, the HIC program protects homeowners on existing 1–4 unit residences, and trade boards license the technical work itself. We highlight several representative licenses and authorities for Massachusetts below; this guide is updated periodically as additional details are curated.
Permits and inspections are issued by local building departments, but the credentials that authorize you to perform or supervise work are issued by state authorities. The sections that follow explain who regulates each trade, what each license allows, and how to qualify, test, and renew.
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Overview of Massachusetts Contractor Licensing
Contractor and trade licensing in Massachusetts is administered at the state level by multiple authorities. For building contractors, the Massachusetts Board of Building Regulations and Standards (BBRS) and the Office of Public Safety and Inspections (OPSI) handle Construction Supervisor Licensing (CSL). Residential remodelers working on existing 1–4 unit, owner-occupied homes must register with the Office of Consumer Affairs and Business Regulation (OCABR) through the Home Improvement Contractor (HIC) program.
Trade work is separately regulated. The Board of State Examiners of Electricians licenses electricians and electrical/systems businesses. The Board of State Examiners of Plumbers and Gas Fitters licenses plumbers and gas fitters. Under the Division of Occupational Licensure, additional boards regulate sheet metal workers and refrigeration technicians. Massachusetts also issues deleading contractor credentials through the state lead and asbestos enforcement program.
While cities and towns issue permits and perform inspections, contractor licensing and registrations are statewide. Use the official Mass.gov portals linked in each section to confirm current requirements, forms, and fees before you apply.
Browse all Massachusetts contractor license practice tests →
Electrician Licenses in Massachusetts
Massachusetts regulates electrical work with 4 license types.
Electrical/Systems Business License
Regulatory authority: Board of State Examiners of Electricians (Division of Occupational Licensure) — Official page
Scope of Work
Authorizes a business entity to engage in electrical or systems contracting in Massachusetts. The company must designate a responsible licensed electrician (qualifier) who oversees compliance with the electrical code and Board regulations.
Eligibility
- Age: 18+
- Responsible person: A Board-licensed electrician must be designated as the business qualifier.
- Business setup: Entity formation and registration consistent with Massachusetts requirements.
Examination
No business-level exam is specified; the designated qualifier must hold and maintain the appropriate electrician license. Exam provider: Contact the licensing board to verify exam provider for individual licenses.
Insurance & Bonding
General liability and workers’ compensation coverage are typically required for contracting businesses; verify exact coverage and limits with your insurer and the Board.
Renewal
Biennial renewal is typical for Division of Occupational Licensure trade licenses; confirm the current cycle and any documentation required.
Contact the Board of State Examiners of Electricians to confirm fees, insurance minimums, experience requirements, and renewal details before applying.
Journeyman Electrician License
Regulatory authority: Board of State Examiners of Electricians — Board overview
Scope of Work
Permits the installation, alteration, and repair of electrical wiring and equipment under the Massachusetts Electrical Code, generally without supervision in the field once licensed.
Eligibility
- Age: 18+
- Experience: Substantial supervised practical experience is required under Board-approved standards prior to testing.
- Education: Completion of an approved electrical apprenticeship or equivalent Board-recognized training.
Examination
Exam: Massachusetts Journeyman Electrician Examination (written, proctored). Topics include the National Electrical Code, Massachusetts amendments, electrical theory, safety, and state regulations. Retake policies are set by the Board.
Insurance & Bonding
Individual journeyman licensees typically are not subject to separate insurance requirements beyond employer or business coverage.
Renewal
Biennial renewal is typical; verify any continuing education and renewal steps with the Board.
Contact the Board of State Examiners of Electricians to confirm fees, insurance minimums, experience requirements, and renewal details before applying.
Master Electrician License
Regulatory authority: Board of State Examiners of Electricians — Board overview
Scope of Work
Authorizes advanced electrical work and supervision of journeymen and apprentices, including planning, layout, design interpretation, and ensuring code compliance for projects.
Eligibility
- Age: 18+
- Experience: Advanced experience beyond journeyman level with supervisory responsibilities as defined by Board standards.
- Education: Completion of journeyman licensure plus any additional training or experience required by the Board.
Examination
Exam: Massachusetts Master Electrician Examination (written, proctored). Topics include advanced NEC content, Massachusetts amendments, design, load calculations, and legal/business responsibilities. Retake per Board policy.
Insurance & Bonding
Insurance is generally carried by the contracting business rather than tied to the individual master license.
Renewal
Biennial renewal is typical; check current continuing education requirements and deadlines with the Board.
Contact the Board of State Examiners of Electricians to confirm fees, insurance minimums, experience requirements, and renewal details before applying.
Systems Contractor License (Low Voltage / Fire Alarm / Communications)
Regulatory authority: Board of State Examiners of Electricians — Official page
Scope of Work
Covers low-voltage systems such as fire alarm, security, and communications wiring in accordance with Massachusetts regulations and applicable codes.
Eligibility
- Age: 18+
- Experience: Documented systems experience under a licensed systems technician or electrician per Board rules.
- Education: Board-approved training specific to low-voltage and systems codes.
Examination
Exam: Massachusetts Systems Contractor Examination (written). Topics include low-voltage systems, fire alarm code, communications standards, safety, and state regulations. Retakes per Board procedures.
Insurance & Bonding
Systems contractors typically must carry general liability and workers’ compensation appropriate to business operations; confirm limits with your insurer and the Board.
Renewal
Biennial renewal is typical; verify any continuing education and renewal documentation with the Board.
Contact the Board of State Examiners of Electricians to confirm fees, insurance minimums, experience requirements, and renewal details before applying.
Plumbing Licenses in Massachusetts
Massachusetts regulates plumbing work with 3 license types.
Journeyman Plumber License
Regulatory authority: Board of State Examiners of Plumbers and Gas Fitters — Board overview
Scope of Work
Allows installation, alteration, and repair of plumbing systems under the Massachusetts plumbing code, typically performing work independently in the field once licensed.
Eligibility
- Age: 18+
- Experience: Completion of a Board-approved plumbing apprenticeship with documented supervised hours per Board standards.
- Education: Board-approved classroom instruction as part of apprenticeship or an equivalent program.
Examination
Exam: Massachusetts Journeyman Plumber Examination (written, proctored). Topics include Massachusetts plumbing code, fixtures, drainage, venting, gas piping fundamentals, safety, and state regulations. Retake per Board rules.
Fees
- Application: $150
- Initial license: $150
Insurance & Bonding
Individual journeyman licensees generally rely on employer or business insurance; confirm coverage specifics with your employer and insurer.
Renewal
Biennial renewal is typical; confirm continuing education hours and renewal steps with the Board.
Contact the Board of State Examiners of Plumbers and Gas Fitters to confirm fees, insurance minimums, experience requirements, and renewal details before applying.
Master Plumber License
Regulatory authority: Board of State Examiners of Plumbers and Gas Fitters — Board overview
Scope of Work
Authorizes supervision of journeymen and apprentices, layout and design responsibility, and operation of a plumbing business in compliance with state code and Board rules.
Eligibility
- Age: 18+
- Experience: Active journeyman licensure plus additional documented, Board-defined experience and supervisory competence.
- Education: Any additional training required by the Board following journeyman licensure.
Examination
Exam: Massachusetts Master Plumber Examination (written). Topics include advanced plumbing design, Massachusetts code, complex systems, gas piping, and legal responsibilities. Retake per Board procedures.
Fees
- Application: $150
- Initial license: $150
Insurance & Bonding
Master plumbers operating businesses must maintain general liability and workers’ compensation coverage consistent with state requirements; verify precise limits with your insurer and the Board.
Renewal
Biennial renewal is typical; verify CE hours and timing with the Board.
Contact the Board of State Examiners of Plumbers and Gas Fitters to confirm fees, insurance minimums, experience requirements, and renewal details before applying.
Journeyman Gas Fitter License
Regulatory authority: Board of State Examiners of Plumbers and Gas Fitters — Board overview
Scope of Work
Enables installation and servicing of gas piping and appliances in accordance with Massachusetts gas fitting regulations, under appropriate supervision pathways defined by the Board.
Eligibility
- Age: 18+
- Experience: Supervised gas fitting experience under a licensed gas fitter per Board standards.
- Education: Board-approved gas fitting coursework or apprenticeship-based training.
Examination
Exam: Massachusetts Journeyman Gas Fitter Examination (written). Topics include gas piping code, appliance installation, combustion air, venting, safety, and state regulations. Retake per Board policy.
Insurance & Bonding
Insurance is typically carried by the employing contractor or business; confirm with your employer and insurer.
Renewal
Biennial renewal is typical; verify any CE requirements with the Board.
Contact the Board of State Examiners of Plumbers and Gas Fitters to confirm fees, insurance minimums, experience requirements, and renewal details before applying.
HVAC Licenses in Massachusetts
Massachusetts regulates HVAC contractors with 2 license types.
Refrigeration Technician License
Regulatory authority: Board of Refrigeration Technicians (Division of Occupational Licensure) — Mass.gov
Scope of Work
Authorizes installation, service, and repair of refrigeration equipment and systems, including piping and related components, in accordance with Massachusetts mechanical provisions and safety standards.
Eligibility
- Age: 18+
- Experience: Practical experience in refrigeration systems plus any Board-mandated apprenticeship or training hours.
- Education: Completion of a Board-approved refrigeration technician training program or equivalent.
Examination
Exam: Massachusetts Refrigeration Technician Examination (written). Topics include refrigeration cycles, equipment, piping practices, safety, and Massachusetts mechanical code provisions. Retake per Board procedures. Exam provider: Contact the Board to verify the current exam administrator.
Insurance & Bonding
Insurance obligations generally fall on the employing contractor or business; coordinate coverage with your employer and insurer.
Renewal
Biennial renewal is typical; confirm any CE hours or refresher requirements with the Board.
Contact the Board of Refrigeration Technicians to confirm fees, insurance minimums, experience requirements, and renewal details before applying.
Exam Prep: PDF study guide with 1,500-2,500 questions, complete answer keys, and reference locators to exact code sections. Study offline; no time or use limits. Massachusetts Refrigeration Technician and Contractor Practice Test.
Sheet Metal Worker License (HVAC Duct and Ventilation)
Regulatory authority: Board of Examiners of Sheet Metal Workers (Division of Occupational Licensure) — Mass.gov
Scope of Work
Covers fabrication and installation of HVAC ductwork and ventilation systems, including fire and smoke damper installations, in compliance with Massachusetts codes and safety standards.
Eligibility
- Age: 18+
- Experience: Documented sheet metal experience under licensed supervision.
- Education: Completion of a Board-approved sheet metal apprenticeship or technical training program.
Examination
Exam: Massachusetts Sheet Metal Worker Examination (written). Topics include sheet metal standards, HVAC duct design, ventilation code, dampers, and safety. Retake per Board rules. Exam provider: Contact the Board to verify the current exam administrator.
Insurance & Bonding
Insurance is generally maintained by the employing contractor or business; verify coverage as appropriate for your role.
Renewal
Biennial renewal is typical; check current CE requirements with the Board.
Contact the Board of Examiners of Sheet Metal Workers to confirm fees, insurance minimums, experience requirements, and renewal details before applying.
General Contractor Licenses in Massachusetts
Massachusetts general contractor licensing includes 3 types.
Construction Supervisor License (Unrestricted)
Regulatory authority: Massachusetts BBRS / OPSI (Division of Occupational Licensure) — CSL program
Scope of Work
Authorizes supervision of building construction, enlargement, alteration, repair, removal, or demolition for structures regulated by 780 CMR (Massachusetts State Building Code). The Unrestricted CSL covers most structural work and larger occupancies as defined by code.
Eligibility
- Age: 18+
- Experience: At least 3 years of full-time building construction or design experience within the past 10 years. Certain vocational programs or bachelor’s degrees may substitute for up to 1–2 years.
- Education: No formal pre-license course is mandated; qualifying vocational or degree pathways can partially substitute for experience.
Examination
Exam: Massachusetts Construction Supervisor License Exam (Unrestricted), written and proctored. Passing score is 70%. Allowed materials are defined in the candidate bulletin; exam content focuses on 780 CMR, structural framing, foundations, means of egress, fire safety, site work, and general construction law. Retakes follow OPSI/BBRS policies. Exam provider: Contact the licensing board to verify exam provider.
Fees
- Application: $150
- Examination: $100
- Initial license: $150
- Renewal: $100
Insurance & Bonding
No surety bond is tied to the CSL itself. Insurance requirements stem from business operations and, for residential remodelers, from HIC registration.
Renewal
Renews every 2 years and typically requires 12 hours of Board-approved continuing education, including building code updates, safety, and construction practices.
Contact BBRS/OPSI to confirm any updates to experience substitutions, exam procedures, fees, and renewal requirements before applying.
Construction Supervisor License (Restricted – One- and Two-Family Dwellings)
Regulatory authority: Massachusetts BBRS / OPSI — CSL program
Scope of Work
Covers supervision of residential construction for one- and two-family dwellings within the provisions of 780 CMR. Ideal for contractors focused on detached houses and duplexes.
Eligibility
- Age: 18+
- Experience: The same general 3-year construction experience requirement as the Unrestricted CSL, but focused on one- and two-family residential projects. Education substitutions may apply.
- Education: Vocational training or qualifying degrees can substitute for a portion of the experience requirement per BBRS policies.
Examination
Exam: Massachusetts CSL Exam – Restricted 1–2 Family, written and proctored. Passing score is 70%. Content emphasizes residential portions of 780 CMR, structural elements, energy code, fire safety, and egress for 1–2 family homes. Exam provider: Contact the licensing board to verify exam provider.
Fees
- Application: $150
- Examination: $100
- Initial license: $150
- Renewal: $100
Insurance & Bonding
No CSL-specific bond requirement. Insurance is driven by your business operations and any HIC registration.
Renewal
Renews every 2 years with 12 hours of continuing education on residential code updates and Board-approved subjects.
Contact BBRS/OPSI to confirm current exam procedures, fees, and renewal requirements before applying.
Home Improvement Contractor Registration (HIC)
Regulatory authority: Office of Consumer Affairs and Business Regulation (OCABR) — HIC program
Scope of Work
Registration required for contractors and subcontractors that solicit, bid, or perform home improvement work on existing, owner-occupied 1–4 unit residential properties. Registration supports consumer protections, including access to the Residential Contractor’s Guaranty Fund.
Eligibility
- Age: 18+
- Experience: No specific technical experience requirement; the program focuses on business registration, disclosures, and consumer protection.
- Insurance: General liability insurance and workers’ compensation coverage are required.
- Guaranty Fund: One-time contribution ($100–$500 based on employee count).
Examination
No exam is required for HIC registration.
Fees
- Application: $150
- Initial registration: $150
- Renewal: $150
Renewal
Typically renews every 2 years through the OCABR portal. Keep insurance coverage active and business details current.
Contact OCABR to confirm current fee schedules, insurance minimums, and renewal timelines before registering.
Roofing Licenses in Massachusetts
Massachusetts regulates roofing contractors with 1 license type.
Construction Supervisor License – Roofing Specialty
Regulatory authority: Massachusetts BBRS / OPSI — CSL program
Scope of Work
Specialty CSL category for roofing and roof covering work under 780 CMR. Applicants select the Roofing/Roof Covering specialty when applying and must demonstrate relevant roofing experience.
Eligibility
- Age: 18+
- Experience: Documented roofing experience plus general CSL eligibility (experience substitution rules may apply based on education).
- Education: No separate coursework beyond CSL criteria; strong knowledge of roofing code provisions is expected.
Examination
Exam: Massachusetts CSL Roofing Specialty Examination (written). Passing score is 70%. Focus areas include roofing materials, installation standards, weatherproofing, structural requirements, and roof-related portions of 780 CMR. Exam provider: Contact the licensing board to verify exam provider.
Fees
- Application: $150
- Examination: $100
- Initial license: $150
- Renewal: $100
Insurance & Bonding
Insurance requirements generally stem from HIC registration or your business operations, not from the CSL specialty itself.
Renewal
CSL specialties renew every 2 years. Expect 12 hours of continuing education, including applicable code updates.
Contact BBRS/OPSI to confirm current roofing specialty documentation, exam procedures, fees, and renewal details before applying.
Specialty Trade Licenses in Massachusetts
Massachusetts regulates specialty trades with 1 license type.
Deleading Contractor License (Lead Abatement Contractor)
Regulatory authority: Massachusetts Lead & Asbestos Enforcement Program — Deleading contractor application
Scope of Work
Authorizes deleading and lead hazard reduction activities. Work must follow strict lead-safe practices, documentation, and regulatory protocols established by the state program.
Eligibility
- Age: 18+
- Training: Completion of approved deleading and lead abatement training and certification courses.
- Experience: Applicants must demonstrate required experience and competency as outlined in the application package.
Examination
Qualification is training-based and may include examinations as required by the lead enforcement program. Topics cover lead hazard control, safe work practices, regulatory compliance, and documentation.
Insurance & Bonding
Lead abatement contractors typically must maintain liability insurance and any coverage required by environmental and public health regulations; verify exact limits with the program.
Renewal
Renewal is periodic per program requirements and may include refresher training focused on lead-safe practices and regulatory updates.
Contact the Massachusetts Lead & Asbestos Enforcement Program to confirm fees, insurance minimums, experience requirements, and renewal details before applying.
Application Process
- Determine which credential(s) your work requires: Construction Supervisor License (CSL), Home Improvement Contractor (HIC) registration, and/or a trade license (electrician, plumber, gas fitter, refrigeration, sheet metal).
- Verify eligibility and experience requirements: CSL generally requires 3 years of full-time building construction experience within the past 10 years; trade licenses require Board-defined apprenticeship and training.
- Prepare documentation: W-2s/1099s, supervisor letters, permit records, tax compliance attestation, business registration documents, insurance certificates, and any education transcripts.
- Schedule and pass any required examination: The CSL exam is administered under BBRS/OPSI; trade exams are administered by their respective boards; passing scores are commonly 70%.
- Submit applications through the appropriate portal: CSL via OPSI/Division of Occupational Licensure; HIC via the MA Contractor Hub; trade licenses via the ePLACE portal.
- Pay all required fees: CSL license fees are around $150 with an exam fee around $100; HIC registration fee is $150 plus a Guaranty Fund contribution; plumbing licenses have a $150 application/license fee. Always verify the current fee schedule on Mass.gov.
- Receive license/registration confirmation and ensure credentials are properly displayed on contracts, advertisements, and permit applications.
- Establish a renewal calendar and complete required continuing education for CSL and any trade licenses.
Timeline: From initial application to issuance, state processing for CSL and HIC typically ranges from 2–6 weeks once exams and documentation are complete; trade licenses follow similar multi-week timelines depending on exam scheduling and Board review.
Frequently Asked Questions
How long does it take to get a contractor license in Massachusetts?
Plan for 2–6 weeks for CSL and HIC once examinations (if any) and documents are complete. Trade licenses follow similar multi-week timelines, influenced mainly by exam scheduling and Board review.
Do I need both a CSL and an HIC registration?
Often, yes. The CSL authorizes supervision of building work that requires permits under 780 CMR. The HIC registration is required when you solicit, bid, or perform home improvement work on existing owner-occupied 1–4 unit residences. Many residential contractors maintain both credentials.
Can I transfer my license from another state to Massachusetts?
Massachusetts does not recognize out-of-state or federal contractor licenses for the CSL, HIC, or the state trade licenses. Applicants must meet Massachusetts-specific experience, examination, and application requirements.
What happens if I fail the exam?
Retake policies are set by the relevant authority (BBRS/OPSI for CSL; the trade boards for electrical, plumbing, gas fitting, sheet metal, and refrigeration). Follow the official retesting procedures provided with your exam results.
Do cities issue separate contractor licenses in Massachusetts?
Licensing is administered at the state level. Local building departments issue permits and conduct inspections, but the core credentials (CSL, HIC, and trade licenses) are issued by state authorities.
Do I need insurance?
Yes. HIC registrants must carry general liability and workers’ compensation and make a one-time contribution to the Residential Contractor’s Guaranty Fund. Electrical/systems and other contracting businesses typically maintain GL and workers’ compensation. CSL itself does not require a surety bond.
How do I renew my license or registration?
CSL renews every 2 years with 12 hours of continuing education. HIC typically renews every 2 years through OCABR. Electrician, plumbing, gas fitting, refrigeration, and sheet metal credentials generally renew biennially; confirm CE and timing with the respective Board.
Where can I find practice tests for Massachusetts exams?
We offer comprehensive PDF practice tests for Massachusetts contractor license exams. Each guide typically contains 1,500–2,500 code-relevant questions with precise answer keys and reference locators to exact code sections. Study offline at your own pace with no time or use limits. Browse Massachusetts contractor practice tests.
Massachusetts · Practice tests
Massachusetts contractor license practice tests
The Massachusetts practice tests we publish today: comprehensive PDF guides, typically 1,500 to 2,500 questions each, with full answer keys and reference locators to the exact code sections. We add new tests regularly, so if your license isn’t listed here, contact us and we’ll build it.
- Business, Law, and Project Management (NASCLA) Reference Practice Test
- Installing Hardwood Flooring NOFMA - Reference Practice Test
- Massachusetts Refrigeration Technician and Contractor Practice Test
- National Electrical Code (NEC) 2017 Practice Test
Related Official Resources
Official Sources for Further Details:
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Office of Consumer Affairs and Business Regulation – Home Improvement Contractor Program
https://www.mass.gov/info-details/home-improvement-contractor-registration-and-renewal
Statewide HIC registration requirements, fees, and portal access. -
Office of Public Safety and Inspections – Construction Supervisor Licensing
https://www.mass.gov/construction-supervisor-licensing
CSL authority, license categories, and application guidance. -
Board of State Examiners of Electricians – Electrical/Systems Business License
https://www.mass.gov/how-to/apply-for-an-electricalsystems-business-license
Business licensing and Board contacts for electricians and systems work. -
Board of State Examiners of Plumbers and Gas Fitters
https://www.mass.gov/orgs/board-of-state-examiners-of-plumbers-and-gas-fitters
Plumbing and gas fitting licensing information and board policies. -
Mass.gov – BBRS FAQ: Hiring a Contractor
https://www.mass.gov/doc/bbrsfaqshiringacontractor72011doc/download
Overview of CSL scope, license lookup, and consumer tips. -
Mass.gov – Deleading Contractor Application
https://www.mass.gov/doc/deleading-contractor-application/download
Lead abatement contractor application and program requirements. -
Boston.gov – Home Improvement and Contracting Tips
https://www.boston.gov/departments/consumer-affairs-and-licensing/home-improvement-and-contracting-tips
City advisory page referencing state licensing and permitting.
Important Disclaimer
Information Currency: This guide reflects licensing information available in 2026. Requirements can change. Always verify current rules, forms, and fees on Mass.gov and through the relevant licensing board.
Official Contact: For CSL and related questions, visit https://www.mass.gov/construction-supervisor-licensing or call (617) 727-3200. For HIC, see OCABR’s Home Improvement Contractor Program. For trade licenses, consult each board’s Mass.gov page.
No Legal Advice: This material is for general informational purposes and is not legal or compliance advice. Consult the licensing boards or a qualified professional for guidance specific to your situation.
Permitting: Local building departments issue permits and conduct inspections. Confirm permit submittals, plan review, and inspection scheduling with the city or town where work will be performed.