Plumbing is one of the most recession-proof, high-demand trades in America. The BLS projects 16% job growth for plumbers through 2032—four times the national average—driven by aging infrastructure, new construction, and a wave of retirements. The median salary sits at $65,190, but experienced plumbers in the right specialty regularly clear six figures.
If you're considering a plumbing career, this guide covers every angle: what the work actually looks like, how to get trained, what each state requires for licensing, and how much you'll earn at each stage.
What Plumbers Actually Do
Plumbing goes far beyond fixing leaky faucets. The trade encompasses three distinct sectors, each with different work environments, skill requirements, and pay scales.
Residential Plumbing
You install and repair plumbing systems in houses and apartment buildings. The work includes water supply lines, drain-waste-vent (DWV) systems, water heaters, fixtures, and gas piping. Most residential plumbers work for small to mid-size companies or run their own shops.
Pros: Steady demand, easier physical work, path to business ownership Cons: Lower pay ceiling, customer-facing (dealing with homeowners), less complex work
Commercial Plumbing
Commercial plumbers work on larger-scale systems in office buildings, hospitals, schools, and retail complexes. The systems are more complex—think multi-story risers, booster pumps, backflow prevention assemblies, and medical gas systems.
Pros: Higher pay, more complex/interesting work, larger crews Cons: Longer commutes to job sites, more physically demanding, stricter deadlines
Industrial Plumbing / Pipefitting
Industrial plumbers and pipefitters install and maintain piping systems in manufacturing plants, refineries, power plants, and chemical facilities. This is the highest-paying segment and overlaps heavily with pipefitting and steamfitting.
Pros: Highest pay ($80k–$120k+), union opportunities, specialized skills Cons: Most physically demanding, travel often required, exposure to hazardous materials
Salary by Experience Level
Plumber pay follows a clear progression tied to your license level and years of experience.
| Career Stage | Typical Timeline | Hourly Rate | Annual Salary | |---|---|---|---| | Apprentice (1st year) | Year 1 | $16–$22 | $33,000–$46,000 | | Apprentice (3rd year) | Year 3 | $22–$30 | $46,000–$62,000 | | Journeyman Plumber | Years 4–8 | $28–$42 | $58,000–$87,000 | | Master Plumber | Years 8+ | $38–$55 | $79,000–$114,000 | | Plumbing Contractor (Owner) | Years 10+ | Varies | $90,000–$200,000+ |
Salary by Specialty
Not all plumbing pays the same. Specialization drives significant pay differences.
| Specialty | Median Annual Pay | Top 10% | |---|---|---| | Medical Gas Installer | $78,000 | $105,000+ | | Industrial Pipefitter | $76,000 | $110,000+ | | Fire Sprinkler Fitter | $72,000 | $98,000+ | | Commercial Service Plumber | $70,000 | $95,000+ | | Backflow Prevention Specialist | $68,000 | $90,000+ | | Residential Service Plumber | $58,000 | $80,000+ | | New Construction Plumber | $55,000 | $75,000+ |
Top-Paying States for Plumbers
Geography matters. Here are the five highest-paying states for plumbers based on BLS data:
| State | Annual Mean Wage | Cost-of-Living Adjusted | |---|---|---| | Illinois | $82,510 | High | | Massachusetts | $78,940 | Moderate | | New Jersey | $76,220 | Moderate | | Alaska | $75,870 | High | | Oregon | $75,140 | Moderate |
Union stronghold states consistently pay more. Illinois plumbers benefit from strong IBEW/UA presence and prevailing wage laws on public projects.
How to Become a Plumber: Step by Step
Path 1: Apprenticeship (Recommended)
The apprenticeship path is the gold standard for plumbing careers. You earn while you learn, graduate debt-free, and walk into journeyman-level wages.
Duration: 4–5 years (8,000–10,000 hours of on-the-job training + 576+ hours of classroom instruction)
How to apply:
- Contact your local UA (United Association of Plumbers and Pipefitters) chapter
- Check Apprenticeship.gov for registered programs in your area
- Apply during the open application window (typically January–March)
- Pass the aptitude test (algebra and reading comprehension)
- Complete an interview and get ranked
For a detailed walkthrough, see our complete guide to trade apprenticeships.
Path 2: Trade School + On-the-Job Training
If you want a faster start or your local union apprenticeship is full, trade school is an excellent alternative. A 6–12 month plumbing certificate gives you the fundamentals, and many states count trade school hours toward your apprentice requirements.
Cost: $3,000–$15,000 depending on program length and location Timeline: 6–18 months for the certificate, then 2–4 years of supervised work to qualify for journeyman licensing
Path 3: Direct Entry as a Helper
You can start as a plumber's helper with zero experience. You'll carry materials, dig trenches, and assist journeymen while learning the basics. This path is slower and less structured, but it requires no upfront investment.
Licensing Requirements
Plumbing is one of the most heavily regulated trades. Every state requires some form of licensing, though the specific requirements vary significantly.
Common License Levels
- Apprentice License: Allows you to work under a journeyman's supervision. Required in most states before you can touch a pipe.
- Journeyman License: Allows you to work independently. Typically requires 4–5 years of supervised experience + passing an exam.
- Master Plumber License: Allows you to pull permits, run a shop, and supervise others. Requires additional experience beyond journeyman (usually 2–4 more years) + a separate exam.
State-by-State Snapshot
| State | Journeyman Requirement | Master Requirement | Exam Required | |---|---|---|---| | Texas | 8,000 hours supervised | 4 additional years | Yes (TSBPE) | | California | 4 years apprenticeship | Not required (C-36 license) | Yes (CSLB) | | Florida | 4 years experience | 1 additional year | Yes (DBPR) | | New York | Varies by county | Varies by county | Yes (local) | | Ohio | 5 years experience | 2 additional years | Yes (OCILB) | | Illinois | 5 years apprenticeship | 5 additional years | Yes (IDPH) |
Important: Plumbing licenses are generally not transferable between states. If you relocate, you may need to apply for reciprocity or retake exams. Some states have reciprocity agreements, but many don't. Research this before you move.
Essential Skills and Certifications
Beyond your plumbing license, these certifications boost your earning potential:
- Backflow Prevention Assembly Tester (BPAT): Required for testing and certifying backflow devices. High demand, adds $5–10k to annual income.
- Medical Gas Installer (ASSE 6010): Required for installing medical gas systems in hospitals. Opens the door to the highest-paying commercial work.
- OSHA 10/30 Construction: Safety certification expected by most commercial and industrial employers.
- EPA Section 608: Required if you work with refrigerants (plumbers who do hydronic heating often need this).
- Green Plumber Certification: Growing demand for water conservation and sustainable plumbing systems.
Career Advancement Paths
Plumbing offers multiple advancement tracks beyond turning wrenches:
Technical track: Journeyman → Master Plumber → Plumbing Inspector → Plans Examiner Management track: Journeyman → Foreman → Project Manager → Operations Manager Business track: Master Plumber → Licensed Contractor → Business Owner Specialty track: Cross-train into industrial maintenance, fire protection, or medical gas installation
The business ownership path is particularly strong in plumbing. A master plumber with a truck and a contractor's license can build a six-figure business with relatively low startup costs compared to other trades. The ongoing service nature of plumbing (things always break) creates recurring revenue that most other trades can't match.
The Job Market in 2026
The plumbing labor market is extremely tight. Here's why:
- Retirements: The average age of a plumber in the U.S. is 47. A massive wave of retirements is hitting now and will accelerate through 2030.
- Infrastructure spending: The Bipartisan Infrastructure Law is driving demand for water and sewer system upgrades nationwide.
- New construction: Residential and commercial building starts remain strong, particularly in Sun Belt states.
- Lead pipe replacement: EPA mandates to replace lead service lines across the country are creating a multi-year demand surge.
The BLS estimates 68,200 annual openings for plumbers through 2032. That's not net new jobs—that's openings from growth plus replacement of retiring workers. The supply of new apprentices is not keeping pace.
If you want a career with essentially guaranteed employment for the next two decades, plumbing is one of the safest bets in the trades.
Getting Started
- Decide your path. Apprenticeship is best if you can wait for an opening. Trade school is faster. Direct entry works if you need income immediately.
- Research your state's requirements. Know the licensing path before you start so you can track your hours properly.
- Target the right specialty. Commercial and industrial plumbing pay significantly more. If you're starting fresh, aim for these sectors from the beginning.
- Get your foot in the door. Apply to apprenticeships, trade school programs, or plumbing companies hiring helpers.
For a broader view of high-paying trades, check out our ranking of the top 10 highest-paying trade jobs in 2026. If you're deciding between trades, our guide to choosing the right trade specialty walks you through the decision framework.
Find Plumbing Jobs on HireBuiltBrowse plumbing and pipefitting openings, then continue to each employer’s exact source job page.Salary data sourced from Bureau of Labor Statistics Occupational Employment and Wage Statistics (May 2025 estimates), U.S. Department of Labor Office of Apprenticeship, and HireBuilt employer data. Licensing requirements are summarized and may not reflect recent legislative changes. Always verify current requirements with your state licensing board. Actual salaries vary by location, experience, employer, and specialty.
