What Does a Boilermaker Do?

Learn About the Salary, Required Skills, & More

What is a boilermaker: A boilermaker is a tradesperson who manufactures, installs, and maintains boilers, tanks, and closed vats, assemble boiler tanks by automatic or robotic welding, read and understand blueprints, inspect and perform test to find any defects or leaks

The Balance / Melissa Ling

A boilermaker is a tradesperson who manufactures, installs, and maintains boilers, tanks, and closed vats. Boilers heat the liquid, usually water, that is used to generate electric power or provide heat to buildings, factories, or ships. Tanks and vats are storage containers that hold chemicals, oil, and other liquids.

With experience, you may be able to move into a supervisory position. You can eventually become a project manager who supervisors other construction workers like plumbers, carpenters, masons, and electricians.

Boilermaker Duties & Responsibilities

This job requires candidates to be able to perform duties that include the following:

  • Install premade boilers into manufacturing facilities and other buildings
  • Read and understand blueprints for the location, position, and dimension of boiler parts
  • Complete job work orders and other needed maintenance documentation
  • Organize and arrange pre-made boiler parts before assembly
  • Identify all of the necessary tools required for tasks
  • Assemble boiler tanks that often involves automatic or robotic welding
  • Use scrapers, cleaning solvents and wire brushed to clean vats
  • Inspect and perform tests on boiler systems to find any defects or leaks
  • Repair or replace parts such as valves, joints, or pipes, using welding equipment, hand tools, and gas torches

Boilermakers are responsible for the maintenance and repair of boilers that may last for over 50 years. This includes ongoing inspections and the replacement of valves, fittings, feed pumps, and other boiler components. Some boilers are so large a crane must be used to move pieces while the boiler is being assembled, and a boilermaker must direct the crane operator to lift the parts into their proper place.

Boilermaker Salary

A boilermaker's salary varies based on the area of expertise, level of experience, education, certifications, and other factors.

  • Median Annual Salary: $62,260 ($29.93/hour)
  • Top 10% Annual Salary: More than $87,160 ($41.90/hour)
  • Bottom 10% Annual Salary: Less than $38,700 ($18.61/hour)

Source: U.S. Bureau of Labor Statistics, 2017

Education, Training & Certification

Boilermaker jobs generally require individuals to have a high school diploma or equivalent and be at least 18 years old. Training takes place through an apprenticeship that teaches skills while on the job.

  • Apprenticeship: If you want to become a boilermaker, you can apply to a formal apprenticeship program offered by a union or employer. It is likely to include about four years of paid on-the-job training combined with classroom instruction. Alternatively, you can attend classes at a trade or technical school and combine that with employer-provided training.
  • Training: Certified or documented training from similar occupations such as millwrights, welder, pipefitter, or sheet metal workers, while not required, may give job applicants an edge over those with no related experience.

Boilermaker Skills & Competencies

You will acquire the hard skills that allow you to do your job through your formal training, but boilermakers also need certain soft skills, or personal qualities. They are:

  • Mechanical skills: Boilermakers must use and maintain many types of equipment, such as welding machines and hoists.
  • Unafraid of heights or confined spaces: Boilermakers often work inside a vat or boiler, and must be able to handle working in tanks at any height, such as water storage tanks that may be several stories above the ground.
  • Physical strength and stamina: You must be able to lift heavy equipment and spend many hours on your feet.
  • Troubleshooting: The ability to correctly diagnose and then fix problems is essential.
  • Critical Thinking: Boilermakers must weigh various solutions to problems and then predict which one will be most effective.
  • Reading comprehension: You must be able to understand written documentation.

Job Outlook

According to the U.S. Bureau of Labor Statistics, the outlook for boilermakers over the next decade relative to other occupations and industries is about the same as the average for all occupations, driven by a continuing need to replace and maintain parts for boilers, offset by fluctuations in the construction industry.

Employment is expected to grow by about 9 percent over the next ten years, which is the same as the average growth projected for all occupations between 2016 and 2026. Growth for other construction trade jobs is projected to grow at a slightly higher rate, which is 10 percent over the next ten years.

These growth rates compare to the projected 7 percent growth for all occupations. Job prospects will fluctuate along with the economy, as levels of construction rise and fall.

Work Environment

Building equipment contractors employ most boilermakers. This includes heating, plumbing, and air-conditioning contractors. The working environment is often damp, dark, poorly ventilated and noisy.

Many of the tanks and boilers are located outside, requiring boilermakers to work in extreme hot or cold weather. Boilermakers wear hardhats and protective gear for safety reasons, and often wear a respirator during work in enclosed spaces

Work Schedule

Jobs are typically full-time. Boilermakers work overtime when there are deadlines to meet, for example when working on a construction project. They face periods of unemployment when their employers are between contracts. Some projects may require travel and extended time away from home.

How to Get the Job


Check for resources provided by your state, such as the California Apprenticeship Coordinators Association. You can find more information on how to get into an apprenticeship program, where applicants receive paid training while on the job.


Look for boilermaker jobs and apprenticeships on online job sites such as Ziprecruiter.com, Indeed.com, and Glassdoor.com. Additionally, check for job listings at a local trade, community, or technical college's career center.

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Source: U.S. Bureau of Labor Statistics, 2017