Plumber license in Massachusetts

Massachusetts requires a state-level plumber license.

State license requiredTypical cost $1,7002026 prices

Required license type

Massachusetts requires home improvement contractors to register with the Office of Consumer Affairs and Business Regulation (OCABR). Construction Supervisor Licenses (CSL) are issued by the Office of Public Safety and Inspections (OPSI) and required for any residential structure subject to MA building code.

Application requirements

Working as a plumber in Massachusetts typically requires submitting an application packet to the Massachusetts Division of Occupational Licensure — Board of Examiners of Plumbers and Gas Fitters — including proof of experience, exam scores, and insurance.

This is the standard packet most U.S. state boards require. Verify the exact list with the Massachusetts Division of Occupational Licensure — Board of Examiners of Plumbers and Gas Fitters before applying — requirements change by trade classification.

Fees and renewal cycle

Total cost to become a licensed plumber in Massachusetts ranges from $220 to $9,500 (typical $1,700). The range covers application + exam fees, bond + insurance premiums, and the first year of business registration.

Floor
$220
Typical
$1,700
Ceiling
$9,500

Most state boards renew on a 1-3 year cycle and require continuing education credits. Verify the exact renewal window and CE requirement with the Massachusetts Division of Occupational Licensure — Board of Examiners of Plumbers and Gas Fitters — late renewal typically triggers a reinstatement fee.

Reciprocity with neighboring states

Massachusetts borders 5 other launched states ProFix Directory tracks. Reciprocity is set by each state board individually — check the destination state for the current rule before relying on it.

Where to apply

Massachusetts Division of Occupational Licensure — Board of Examiners of Plumbers and Gas Fitters

Open the board lookup →

Board phone: +1-617-973-8700

Massachusetts requires home improvement contractors to register with the Office of Consumer Affairs and Business Regulation (OCABR). Construction Supervisor Licenses (CSL) are issued by the Office of Public Safety and Inspections (OPSI) and required for any residential structure subject to MA building code.

Why ProFix verifies every plumber

Every pro we list in Massachusetts is matched against the Massachusetts Division of Occupational Licensure — Board of Examiners of Plumbers and Gas Fitters record, the Secretary of State business registry, and OSHA inspection data. We surface license status, revocation history, and bond filings on every profile so homeowners can shortlist verified pros without trusting a single review-platform score.

See the full verification methodology →

Common questions

Do I need a plumber license in Massachusetts?
Massachusetts requires plumber contractors to hold a Massachusetts Plumber license from the Massachusetts Division of Occupational Licensure — Board of Examiners of Plumbers and Gas Fitters. Apply through https://www.mass.gov/orgs/board-of-state-examiners-of-plumbers-and-gas-fitters with a typical $1,700 total fee (range $220-$9,500) and a 1-3 year renewal cycle. Verify the exact classification with the board before submitting.
Which board handles plumber licensing in Massachusetts?
Massachusetts Division of Occupational Licensure — Board of Examiners of Plumbers and Gas Fitters is the relevant authority shown in the Massachusetts licensing seed for this page. The verification or application URL in the loader is https://www.mass.gov/orgs/board-of-state-examiners-of-plumbers-and-gas-fitters.
How much does a plumber license cost in Massachusetts?
The recorded licensing cost range is $220-$9,500, with a typical total around $1,700. That range comes from the page loader and covers application, exam, bond, insurance, or registration costs where they apply.
What requirements should Massachusetts plumber applicants verify?
Massachusetts requires home improvement contractors to register with the Office of Consumer Affairs and Business Regulation (OCABR). Construction Supervisor Licenses (CSL) are issued by the Office of Public Safety and Inspections (OPSI) and required for any residential structure subject to MA building code.
Are MA plumbers licensed?
Yes. The Board of Examiners of Plumbers and Gas Fitters licenses Apprentice, Journeyman, and Master plumbers + gas fitters.
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