Architecture & Construction > Maintenance/Operations

Projected Growth: Average

Projected Job Openings

Medium Preparation Needed

Job Description

Your job is to Construct, assemble, maintain, and repair stationary steam boilers and boiler house auxiliaries. Align structures or plate sections to assemble boiler frame tanks or vats, following blueprints. Work involves use of hand and power tools, plumb bobs, levels, wedges, dogs, or turnbuckles. Assist in testing assembled vessels. Direct cleaning of boilers and boiler furnaces. Inspect and repair boiler fittings, such as safety valves, regulators, automatic-control mechanisms, water columns, and auxiliary machines.

Common job titles of Boilermakers include:

Experience and Education

Previous work-related skill, knowledge, or experience is required for these occupations. For example, an electrician must have completed three or four years of apprenticeship or several years of vocational training, and often must have passed a licensing exam, in order to perform the job.

  • 38.7% said they needed a Less than a High School Diploma.

  • 37.66% said they needed a Post-Secondary Certificate.


    Inspect assembled vessels or individual components, such as tubes, fittings, valves, controls, or auxiliary mechanisms, to locate any defects.

    Position, align, and secure structural parts or related assemblies to boiler frames, tanks, or vats of pressure vessels, following blueprints.

    Shape seams, joints, or irregular edges of pressure vessel sections or structural parts to attain specified fit of parts, using cutting torches, hammers, files, or metalworking machines.

    Bolt or arc weld pressure vessel structures and parts together, using wrenches or welding equipment.

    Assemble large vessels in an on-site fabrication shop prior to installation to ensure proper fit.

    Study blueprints to determine locations, relationships, or dimensions of parts.

    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.

    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.

    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.

    Attach rigging and signal crane or hoist operators to lift heavy frame and plate sections or other parts into place.

    Install refractory bricks or other heat-resistant materials in fireboxes of pressure vessels.

    Install manholes, handholes, taps, tubes, valves, gauges, or feedwater connections in drums of water tube boilers, using hand tools.

    Bell, bead with power hammers, or weld pressure vessel tube ends to ensure leakproof joints.

    Examine boilers, pressure vessels, tanks, or vats to locate defects, such as leaks, weak spots, or defective sections, so that they can be repaired.

    Straighten or reshape bent pressure vessel plates or structure parts, using hammers, jacks, or torches.

    Clean pressure vessel equipment, using scrapers, wire brushes, and cleaning solvents.


X ray inspection equipment

Workshop cranes

Wire rope pullers

Wire brushes

Welding tips

Welding tip cleaning files

Welding shields

All Tools

Welding oxygen regulators

Welding distribution panels

Welding adaptors


Water levels

Vise grip pliers

Vernier calipers

Ventilation fans

Utility knives

Utility hoists

Two way radios

Tungsten inert gas TIG welding equipment

Tube wall reducing tools

Tube pullers

Tube milling machines

Tube end facers

Tube drifts

Transit levels

Trammel points

Torque wrenches

Temperature sticks

Telescoping lifts

Telescoping gauges

Tap sets

Swivel hoist rings

Swing stages

Strap wrenches


Stick electrodes

Steamboat ratchet jacks

Staging equipment


Spud wrenches

Spreader beams

Splitting chisels

Spirit levels

Soft face hammers

Socket wrench sets

Slip joint pliers


Sliding t-bevels


Single-cut mill saw files

Side cutting pliers

Shielded arc welding tools



Serrating tools

Self-contained breathing apparatus



Screw jacks

Scissor lifts

Scale rules



Safety goggles

Safety glasses

Respiratory protection equipment

Resin spray guns

Reciprocating saws

Putty knives

Punch presses

Pry bars


Protective gloves

Pre-heating torches

Power saws

Power grinders

Portable welding machines

Pneumatic impact wrenches

Pneumatic hoists

Pneumatic drills

Plumb bobs

Plate clamps

Plasma arc welding equipment

Pipe vises

Pipe and tubing cutters

Pin punches

Personal computers

Oxygen lances

Oxygen concentration meters

Overhead hoists

Open end wrenches

Non-sparking hammers


Needle pressure gauges

Milling machines


Metal-cutting snips

Metal-cutting chisels

Metal inert gas MIG welders

Measuring tapes

Longnose pliers

Leather protective clothing

Lead hammers

Laser levels


Jig saws

Inspection mirrors

Hydrostatic testers

Hydraulic stub pullers

Hydraulic jacks

Hydraulic cranes

Hydraulic boom trucks

Heat lamps

Hard hats

Hand saws

Hammer wrenches

Half-face respirators


Ground clamps

Full-face respirators

Full body harnesses

Friction lighters

Framing squares


Flashback arrestors

Flaring tools

Fire retardant coveralls

Fire extinguishers

Filtered lenses

Engineers’ levels

End cutting pliers

Electrode ovens

Electrode holders

Ear plugs

Dust masks

Drill presses

Drill point gauges

Drift pins


Digital levels

Digital lasers

Desktop computers

Cutting torches

Cutoff saws

Contour markers

Computer-controlled welding equipment


Combination wrenches

Combination squares

Clear lenses

Claw hammers

Circular saws

Chipping hammers

Channel lock pliers

Chalk lines

Chain wrenches

Chain pulleys

Chain hoists

Chain falls

Center punches

Caulking guns

Catalyst dispensers

Carbon dioxide CO2 meters


C clamps

Bull pins

Buffing tools


Box end wrenches

Bolt cutters

Block and tackle equipment

Blacksmiths’ punches

Beveling machines

Bench vises

Bench lathes

Beam trolleys

Beam clamps

Bar clamps

Ball peen hammers

Atmospheric testing equipment

Atmospheric monitoring devices

Allen wrenches

Air scalers

Air manifolds

Air hammers

Air grinders

Air compressors

Air carbon arc cutting equipment

Adjustable pipe wrenches

Adjustable crescent wrenches

Acetylene torches


Computer aided design CAD software

Health and safety training software


Operation Monitoring

Watching gauges, dials, or other indicators to make sure a machine is working properly.

Operation and Control

Controlling operations of equipment or systems.

Critical Thinking

Using logic and reasoning to identify the strengths and weaknesses of alternative solutions, conclusions or approaches to problems.

Equipment Maintenance

Performing routine maintenance on equipment and determining when and what kind of maintenance is needed.

Quality Control Analysis

Conducting tests and inspections of products, services, or processes to evaluate quality or performance.


Determining causes of operating errors and deciding what to do about it.


Repairing machines or systems using the needed tools.

Reading Comprehension

Understanding written sentences and paragraphs in work related documents.


Monitoring/Assessing performance of yourself, other individuals, or organizations to make improvements or take corrective action.

Equipment Selection

Determining the kind of tools and equipment needed to do a job.

Active Listening

Giving full attention to what other people are saying, taking time to understand the points being made, asking questions as appropriate, and not interrupting at inappropriate times.

Active Learning

Understanding the implications of new information for both current and future problem-solving and decision-making.

Complex Problem Solving

Identifying complex problems and reviewing related information to develop and evaluate options and implement solutions.

Judgment and Decision Making

Considering the relative costs and benefits of potential actions to choose the most appropriate one.

Time Management

Managing one's own time and the time of others.


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Occupation Sections



Knowledge of design techniques, tools, and principles involved in production of precision technical plans, blueprints, drawings, and models.


Knowledge of arithmetic, algebra, geometry, calculus, statistics, and their applications.

Building and Construction

Knowledge of materials, methods, and the tools involved in the construction or repair of houses, buildings, or other structures such as highways and roads.

Production and Processing

Knowledge of raw materials, production processes, quality control, costs, and other techniques for maximizing the effective manufacture and distribution of goods.


Knowledge of machines and tools, including their designs, uses, repair, and maintenance.

Engineering and Technology

Knowledge of the practical application of engineering science and technology. This includes applying principles, techniques, procedures, and equipment to the design and production of various goods and services.

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