Boilermakers assemble, install, and maintain boilers, closed vessels, and large industrial tanks — critical equipment in power generation, refining, and manufacturing. The national median is $73,340 (BLS 2024). Entry is through the International Brotherhood of Boilermakers (IBB) apprenticeship — a paid 4–5 year program. This is specialized, physically demanding work with strong union wages.
The Path to Becoming A Boilermaker
Finish high school or get your GED
Every accredited boilermaker program requires a diploma or GED. Welding skills are a major asset — boilermakers do significant welding work as part of their trade. Physical fitness is essential for this demanding trade.
Choose your training path
Review the three training options below — vocational certificate, apprenticeship, and community college — and choose the one that fits your timeline, budget, and market availability.
Complete your program
IBB apprenticeships cover boiler assembly, welding (SMAW, TIG, MIG), rigging, blueprint reading, pressure vessel codes (ASME), and safety.
Build your credentials
4–5 year IBB apprenticeship with documented field hours. ASME welding certifications are earned as part of the apprenticeship process.
Obtain required licenses or certifications
No universal state license for boilermakers — the IBB credential and ASME welding certifications are the primary qualifications. OSHA certification is required on most industrial worksites.
How to Become A Boilermaker
Not all paths are equal in time, cost, or guaranteed entry. Here is an honest breakdown of each.
The primary path into boilermaking is through the International Brotherhood of Boilermakers (IBB) apprenticeship. This is a paid 4–5 year program covering boiler assembly, welding, rigging, and pressure vessel work.
- Paid apprenticeship — build skills from day one
- 4–5 year program covering welding, assembly, and pressure vessel work
- ASME welding certifications earned during apprenticeship
- Strong IBB union benefits: health, pension, annuity
- Apply through your local IBB chapter
Some industrial contractors hire boilermaker helpers directly for non-union work. Welding certification strengthens applications to both union and non-union boilermaker positions.
- Direct hire as boilermaker helper by industrial contractors
- AWS or ASME welding certifications significantly improve prospects
- Non-union work available in some markets
- Lower wages and benefits than IBB union work typically
Welding technology programs at community colleges or trade schools provide a strong foundation for boilermaker apprenticeship applications. ASME pipe welding experience is particularly valued.
- Welding certificate programs strengthen IBB application
- Pipe welding (ASME B31.1, B31.3) experience particularly valuable
- AWS structural welding certification adds value
- Use as preparation for IBB apprenticeship — not a replacement
Licensing & Requirements By State
Requirements vary significantly by state. Here are the specifics for Forged Careers’ primary markets.
Texas
- No statewide boilermaker license required
- ASME pressure vessel codes apply to all boiler work
- Refinery and power plant work: premium wages
- Apply through IBB Local 587 (Houston) or Local 592 (Beaumont)
Louisiana
- No statewide boilermaker license required
- ASME pressure vessel codes apply
- Petrochemical corridor: highest concentration of boilermaker work in the US
- Apply through IBB Local 684 (Baton Rouge) or Local 37 (New Orleans)
Illinois
- Boilermaker license required in Chicago
- ASME codes apply statewide
- Chicago: major industrial and power generation market
- Apply through IBB Local 1 (Chicago)
California
- California requires boiler operator licensing for some roles
- ASME codes apply statewide
- Refinery and power generation: premium wages
- Apply through IBB Local 549 (Los Angeles)
Florida
- No statewide boilermaker license required
- ASME pressure vessel codes apply
- Power plant and industrial maintenance: steady demand
- Apply through IBB Local 433 (Jacksonville)
Source: State licensing board requirements as of 2026. Always verify current requirements directly with your state board before applying to a program.
Boilermaker Career FAQ
What does a boilermaker do?
Boilermakers assemble, install, maintain, and repair boilers, pressure vessels, tanks, and heat exchangers used in power generation, oil refining, chemical processing, and manufacturing. The work is physically demanding and involves significant welding, rigging, and working in confined spaces and at height.
How do I become a boilermaker?
Apply to your local International Brotherhood of Boilermakers (IBB) apprenticeship. The 4–5 year paid apprenticeship is the primary path. Welding experience or certification significantly strengthens your application. Non-union industrial contractors also hire in some markets.
How much do boilermakers make?
The national median is $73,340 (BLS 2024). Union boilermakers in refinery and power plant markets in Texas, Louisiana, and California earn significantly more — $80,000–$100,000+ is common for experienced journeymen on industrial shutdowns and maintenance projects.
What is the job outlook for boilermakers?
BLS projects 1% growth through 2034 — modest. The key is replacement demand: aging power plant and refinery infrastructure requires continuous maintenance, and the existing workforce is aging. Industrial boilermakers who specialize in refinery turnaround and shutdown work have strong demand regardless of new construction.
Do boilermakers travel?
Often yes. Industrial shutdown and turnaround work — intensive maintenance periods at refineries, power plants, and chemical facilities — is a major part of the boilermaker trade and often requires travel. This work pays premium wages and is a significant income opportunity for willing boilermakers.
Is boilermaker work dangerous?
Yes — it is one of the higher-hazard trades. Working with pressure systems, confined spaces, heights, and high-temperature environments requires comprehensive safety training. The IBB apprenticeship has rigorous safety training and OSHA compliance is mandatory on all union worksites.
See What Boilermakers Earn
In Your State
Get your free salary projection — built from 2024 BLS data. Industrial pressure vessel work with union wages.
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