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Job Titles in the U.S. Plumbing Industry (with Salaries)

The U.S. plumbing industry is made up of many specialized roles. While most people think of plumbers as the ones fixing leaks in kitchens and bathrooms, the industry spans far beyond that — from apprentices to inspectors, designers, estimators, and instructors. Each title has its own responsibilities, training requirements, and earning potential.

Below is a breakdown of the key job titles, their duties, and typical salary ranges.

Apprentice Plumber

Apprentices are entry-level plumbers in training, usually enrolled in 4–5 year programs combining classroom learning with on-the-job experience under supervision.

Key Duties:

  • Assist licensed plumbers with installations and repairs
  • Learn to read blueprints and plumbing diagrams
  • Study plumbing codes and safety practices
  • Handle basic tasks like pipe cutting, measuring, and material prep

Salary Range: $35,000–$55,000 annually (median around $39,000).

Journeyman Plumber

Journeymen are fully licensed to work independently after completing apprenticeship and exams.

Key Duties:

  • Install and repair water, waste, and gas systems
  • Troubleshoot plumbing issues in homes and businesses
  • Interpret complex blueprints and technical drawings
  • Ensure all work complies with state and local codes
  • Supervise apprentices on job sites

Salary Range: $40,700–$105,000 annually (median about $63,000).

Master Plumber

Master plumbers hold the highest level of certification. They can design systems, run businesses, and oversee major projects.

Key Duties:

  • Design plumbing systems for new construction
  • Pull permits and ensure code compliance
  • Manage teams of journeymen and apprentices
  • Bid on and oversee large projects
  • Operate plumbing businesses as contractors

Salary Range: $80,000–$120,000+ annually (contractors and business owners often earn more).

Residential Plumber

Residential plumbers specialize in household systems and fixtures.

Key Duties:

  • Install and repair sinks, toilets, showers, and bathtubs
  • Maintain water heaters, dishwashers, and washing machine hookups
  • Perform leak detection and drain cleaning
  • Provide emergency services for broken pipes or clogs
  • Communicate directly with homeowners

Salary Range: $45,000–$90,000 annually, with higher earnings in metro areas.

Commercial Plumber

Commercial plumbers work in offices, hospitals, schools, and other large facilities.

Key Duties:

  • Install and maintain large-scale plumbing networks
  • Work with industrial-grade fixtures, boilers, and pumps
  • Ensure systems can handle high usage volumes
  • Collaborate with architects and engineers
  • Follow strict codes and health regulations

Salary Range: $50,000–$95,000 annually, sometimes exceeding $100,000.Industrial Plumber

Industrial Plumber

Industrial plumbers handle systems in factories, refineries, and power plants.

Key Duties:

  • Install and maintain high-pressure and chemical piping systems
  • Work with large-diameter pipes and heavy-duty materials
  • Perform safety checks and pressure testing
  • Interpret complex mechanical blueprints
  • Follow OSHA and workplace safety regulations

Salary Range: $55,000–$100,000+ annually, depending on facility and certifications.

Pipefitter / Steamfitter

Pipefitters and steamfitters specialize in high-pressure piping for gases, chemicals, and steam.

Key Duties:

  • Fabricate and install heavy-duty metal pipes
  • Weld, thread, and bend pipes to specifications
  • Build piping systems for refineries, plants, and HVAC systems
  • Test pipelines for leaks and pressure strength
  • Work with hazardous materials safely

Salary Range: $40,700–$105,000+ annually (median about $63,000).

Gasfitter

Gasfitters work on natural gas and propane lines for heating and appliances.

Key Duties:

  • Install and repair gas lines for stoves, furnaces, and fireplaces
  • Connect and test gas appliances for safety
  • Detect and repair leaks using pressure tests
  • Follow strict safety and fuel gas codes
  • Ensure proper venting to avoid carbon monoxide hazards

Salary Range: $21–$31 per hour (roughly $45,000–$65,000 annually).

Sprinkler Fitter

Sprinkler fitters specialize in fire protection systems.

Key Duties:

  • Install sprinkler heads, valves, and piping
  • Maintain and repair existing fire suppression systems
  • Ensure compliance with fire codes and insurance standards
  • Collaborate with fire safety engineers
  • Test and certify sprinkler performance

Salary Range: $20.90–$35.30 per hour (about $43,000–$73,000 annually).

Plumbing Foreman

Plumbing foremen supervise crews on construction projects.

Key Duties:

  • Coordinate plumbing tasks with other trades
  • Oversee apprentices and journeymen on site
  • Ensure projects stay on schedule and within budget
  • Order and track materials and tools
  • Serve as the link between workers and project managers

Salary Range: $49,000–$122,000 annually (median about $76,760).

Plumbing Contractor

A plumbing contractor is often a master plumber who runs a business.

Key Duties:

  • Manage projects from bidding to completion
  • Hire and supervise staff
  • Handle client relations and scheduling
  • Ensure insurance, permits, and licenses are in place
  • Oversee financial operations and business growth

Salary Range: $80,000–$150,000+ annually, with top owners earning more.

Plumbing Inspector

Inspectors ensure work meets safety and building codes.

Key Duties:

  • Review blueprints and plans before approval
  • Inspect plumbing systems during and after installation
  • Test water pressure and drainage performance
  • Issue approvals or correction notices
  • Educate contractors and homeowners on code compliance

Salary Range: $46,600–$112,000 annually (median about $72,120).

Plumbing Estimator

Estimators calculate costs and prepare bids for projects.

Key Duties:

  • Analyze blueprints and project specifications
  • Calculate material, labor, and equipment costs
  • Work with suppliers for accurate pricing
  • Prepare detailed reports and proposals
  • Assist project managers with budgeting

Salary Range: $46,300–$128,600 annually (median about $77,070).

Plumbing Designer

Designers plan and draft plumbing system layouts, usually with CAD or BIM software.

Key Duties:

  • Create detailed drawings for water, waste, and drainage systems
  • Perform calculations to size pipes and equipment
  • Specify materials and fixture types
  • Coordinate designs with architects and engineers
  • Ensure compliance with plumbing codes

Salary Range: $46,500–$107,600 annually (median about $68,510).

Plumbing Instructor

Instructors train future plumbers at schools or apprenticeship programs.

Key Duties:

  • Teach plumbing codes, safety, and technical theory
  • Lead hands-on lab sessions for pipe cutting and fixture installation
  • Develop curriculum and training modules
  • Prepare students for licensing exams
  • Mentor apprentices entering the workforce

Salary Range: $45,100–$101,500 annually (median about $62,910).

Final Thoughts

The U.S. plumbing industry covers much more than household pipe repair. From entry-level apprentices to high-level inspectors, estimators, designers, and contractors, each role plays a critical part in keeping water and waste systems safe and functional. Salaries span from $35,000 for beginners to well over $120,000 for experienced masters, foremen, and estimators.

Whether you want a hands-on trade, a design role, or a teaching career, plumbing offers strong earning potential and career growth.

Job Title Typical Salary Range (Annual) Median / Average Pay
Apprentice Plumber $35,000 – $55,000 ~$39,000
Journeyman Plumber $40,700 – $105,000+ ~$62,970
Master Plumber $80,000 – $120,000+ Often $100k+ (owners vary)
Residential Plumber $45,000 – $90,000 ~$60,000
Commercial Plumber $50,000 – $95,000+ ~$70,000
Industrial Plumber $55,000 – $100,000+ ~$75,000
Pipefitter / Steamfitter $40,700 – $105,000+ ~$62,970
Gasfitter $45,000 – $65,000 ~$29/hr ($60k annualized)
Sprinkler Fitter $43,000 – $73,000 ~$28/hr ($58k annualized)
Plumbing Foreman $49,000 – $122,000 ~$76,760
Plumbing Contractor $80,000 – $150,000+ Varies widely
Plumbing Inspector $46,600 – $112,000 ~$72,120
Plumbing Estimator $46,300 – $128,600 ~$77,070
Plumbing Designer $46,500 – $107,600 ~$68,510
Plumbing Instructor $45,100 – $101,500 ~$62,910
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