Plumber/Pipefitter at Pipefitters Local 537
at Pipefitters Local 537 in Dorchester, MA
About This Program
Pipefitters Local 537, based in Dorchester, Massachusetts, offers a union JATC plumber/pipefitter apprenticeship for individuals seeking to enter the mechanical trades in the greater Boston area. This program is backed by the strength of organized labor and provides apprentices with paid, structured training on active construction and industrial job sites.
The apprenticeship runs five years and includes 8,000 hours of on-the-job training paired with 576 hours of related technical instruction. Apprentices gain skills in installing and maintaining high-pressure steam, hydronic heating, process piping, and plumbing systems. Classroom coursework covers pipefitting methods, code compliance, welding, rigging, and safety standards relevant to commercial and industrial pipefitting work.
Upon graduation, apprentices become journey-level pipefitters and full members of Local 537. Union membership provides access to collectively bargained wages, health insurance, and retirement benefits, along with ongoing training resources to support career advancement in the Boston-area construction market.
Wage & Training
Journeyman Wage
$30
OJT Hours
8,000
RTI Hours
576
Duration
5 years
Wage data is the national median for this occupation (BLS, May 2023), not specific to this program.
Plumber Career Outlook
National Median
$30.46/hr
~$63,356.8/yr
Apprentice Start
$15/hr
Earn while you learn
Job Outlook
Plumber employment is projected to grow steadily, driven by new construction, building renovation, and the need to replace aging water infrastructure. Water efficiency regulations and green building standards are creating additional demand for skilled plumbers. The trade consistently ranks among the hardest positions for employers to fill, indicating strong job security.
What to Expect as a Plumber/Pipefitter Apprentice
Duration
5 years of combined on-the-job training and classroom instruction
On-the-Job Training
~32 hours/week of hands-on work under journeyman supervision (8,000 total hours)
Classroom Instruction
576 hours of related technical instruction (~115 hours/year)
Paid Training
You earn a wage from day one, starting at a percentage of the journeyman rate and increasing as you progress
Time-based program: You'll progress through the program based on completing a set number of hours in both on-the-job training and classroom instruction.
This is a union-affiliated program. Union apprenticeships typically offer strong benefits packages, pension contributions, and structured career advancement through the local hall.
Trade School vs. Apprenticeship for Plumber
Apprenticeship
Trade School
Licensing in Massachusetts
Plumber/Pipefitters in Massachusetts are required to hold a license. Licensing is issued by Massachusetts Board of State Examiners of Plumbers and Gas Fitters.
View full Massachusettslicensing requirements →Reviews
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