Boilermakers
Also called: Assembler, Boiler Control Technician (Boiler Control Tech), Boiler Erector, Boiler Fitter, Boiler Installer, Boiler Maker, Boiler Mechanic, Boiler Reliner
Construct, assemble, maintain, and repair stationary steam boilers and boiler house auxiliaries.
What boilermakers do
Typical tasks
- Conduct pressure tests on vessels, such as boilers.
- Study blueprints to determine locations, relationships, or dimensions of parts.
- Examine boilers, pressure vessels, tanks, or vats to locate defects, such as leaks, weak spots, or defective sections, so that they can be repaired.
- Inspect assembled vessels or individual components, such as tubes, fittings, valves, controls, or auxiliary mechanisms, to locate any defects.
- Lay out plate, sheet steel, or other heavy metal and locate and mark bending and cutting lines, using protractors, compasses, and drawing instruments or templates.
- Bell, bead with power hammers, or weld pressure vessel tube ends to ensure leakproof joints.
- Locate and mark reference points for columns or plates on boiler foundations, following blueprints and using straightedges, squares, transits, or measuring instruments.
- Shape or fabricate parts, such as stacks, uptakes, or chutes, to adapt pressure vessels, heat exchangers, or piping to premises, using heavy-metalworking machines such as brakes, rolls, or drill presses.
- Position, align, and secure structural parts or related assemblies to boiler frames, tanks, or vats of pressure vessels, following blueprints.
- Clean pressure vessel equipment, using scrapers, wire brushes, and cleaning solvents.
- Repair or replace defective pressure vessel parts, such as safety valves or regulators, using torches, jacks, caulking hammers, power saws, threading dies, welding equipment, or metalworking machinery.
- Attach rigging and signal crane or hoist operators to lift heavy frame and plate sections or other parts into place.
Typical path into the job (BLS)
Boilermakers salary
The median annual wage for boilermakers is $76,410 (BLS OEWS May 2025; BLS Employment Projections 2025–35, national). The lowest 10 percent earn less than $50,490 and the highest 10 percent earn more than $110,370. The mean annual wage is $80,090.
The mean hourly wage of $38.00 is 5.2× the federal minimum wage of $7.25. State minimums are higher in most large states. Minimum wage by state →
How does your pay compare with people your age?
Your numbers are not sent or stored. The comparison uses this occupation's BLS wage percentiles, adjusted for age with BLS median weekly earnings by age group (Q3 2026).
Pay by percentile
Annual wage percentiles from the BLS Occupational Employment and Wage Statistics (OEWS). Percentiles are a good proxy for pay by experience.
Projected pay for Boilermakers (3, 5 and 10 years)est.
Today $76,410 → in 3 years $83,500 → in 5 years $88,600 → in 10 years $102,600 (10-year range $88,300–$119,200). The model assumes pay growth of +3.0% per year.
What drives the annual growth rate
Projected pay = current pay × (1 + annual growth)^years. The annual growth rate starts from a base wage-growth rate and adds or subtracts labor demand (BLS projected employment growth), wage momentum and AI replacement risk for each occupation. Projections are not guarantees. How it is calculated →
Outlook score for Boilermakers
Each component is a percentile rank among all occupations in the same country (0–100). Weights: labor demand 25, wage momentum / openings 15, pay level 15, AI resistance 25, aging workforce 10 (Japan only), entry barrier 10.
Will AI replace Boilermakers? AI replacement risk
How AI is changing this job
A written analysis for this occupation is being prepared.
AI replacement risk compares the parts of a job that are easy to hand to AI or software (processing information, documentation, repetitive computer work) with the parts that are hard to automate (physical work, working closely with people, judgment in unpredictable settings), using O*NET work activities, work context, skills and knowledge. The result is a relative position among all occupations in the country, scaled to 0–100%. Methodology →
Labor demand for Boilermakers
Employment projections are from the BLS Employment Projections program (2025–35). Annual openings include both new jobs and replacement of workers who leave the occupation.
Skills, education and requirements for Boilermakers
Key skills
O*NET skill level ratings (0–7).
Key knowledge areas
What the work involves
Important abilities
Education of workers
Training before entry
Related work experience
Job Zone 2 — some preparation needed (O*NET)
Difficulty of entry: ★★☆☆☆ Fairly easy (from education, training, experience and Job Zone)
How to become boilermakers
A step-by-step guide for this occupation is being prepared. The education, training and experience data above show the typical path.
Career path and how to earn more as boilermakers
Career-path guidance is being prepared. Pay by percentile is shown in the Pay section.