How to Become a Plumber (2025 Guide)

Plumbers do more than fix leaks-​they build and protect the water, gas, and waste systems that keep modern life running. With national demand outpacing supply, plumbing offers stable employment, strong wages, and real job security, along with a clear path to business ownership.

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Why Plumbing Is a High-Demand Trade

Aging water infrastructure, code-driven retrofits, and steady new-home construction are all fueling job growth. The U.S. Bureau of Labor Statistics projects 6% employment growth from 2023 to 2033, faster than average for all occupations[^1]. This translates to substantial opportunity, with the industry projected to add 23,400 jobs by 2029 alone, ensuring real job security for plumbers[^7].

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What Does a Plumber Do?

Plumbers install, maintain, and repair systems that move water, gas, and waste. Typical tasks include:

• Cutting, threading, and assembling pipes and fittings
• Installing water heaters, boilers, and backflow preventers
• Laying and testing sewer and drainage lines
• Connecting gas piping to appliances
• Reading blueprints and interpreting local plumbing codes
• Estimating labor and material requirements for projects.
• Inspecting work sites to identify potential environmental or safety hazards.
• Installing or maintaining specialized systems, such as green plumbing or water handling systems.
• Marking reference points on construction materials for precise installation.

[^8]

Specialties range from residential service to large-scale industrial, medical-gas, or fire-suppression work.

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Cost & Timeline to Become a Plumber

Year	Path Milestone	Typical Cost*	Hours Earned
0	High-school diploma / GED	$0-$150	-
0-1	Apply & start apprenticeship	Application fee $50-$200	0-2,000
1-2	First year classes (school or union)	$839-$8,000[^4]	2,000-4,000
3-4	Final apprenticeship years	Mostly paid OJT	4,000-8,000
4-5	License exam & fees	$200-$500	-

*Union apprenticeships often charge modest classroom fees and provide rising wages with benefits.

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Apprenticeship vs. Trade School vs. Direct-to-Work

Path	Up-front Cost	Earnings While Training	Best For
Union Apprenticeship	Low	High (wages + benefits)	Long-term stability, pension access
Open-Shop Apprenticeship	Low-Medium	Medium	Flexible entry, faster job placement
Trade School First	Medium-High	Low	Career-changers needing structured learning

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Step-by-Step: How to Become a Licensed Plumber

1. Finish high school or earn a GED: Most plumbing apprenticeship programs require a high school diploma or GED, and sometimes a valid driver's license[^7][^9].
2. Apply for a registered apprenticeship (union or open-shop): Apprenticeships are generally 4 to 5 years long and combine paid on-the-job training with classroom study[^10][^9]. You'll earn a salary while you train[^7].
3. Complete 4,000-8,000 hours of on-the-job training + classroom instruction[^5]: This structured training ensures you gain practical skills and theoretical knowledge required for the trade.
4. Submit proof of hours to your state board
5. Pass your state's licensing exam: A license is generally required to work as a plumber in most states[^10].
6. Upgrade to journeyman or master level with additional experience and/or exams: Most states offer pathways to journeyman and master plumber licenses after gaining further experience[^7].

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State Licensing Requirements

State	Guide
Florida	Become a Plumber in Florida
Texas	Become a Plumber in Texas
California	Become a Plumber in California
All States	Complete State List »

State licensing requirements vary significantly. While a license is universally needed for plumbers, some states also have specific licensing for pipefitters, gas line workers, or other specialties[^7][^10]. For example, in Alabama, plumbers and gas fitters need certification from the Alabama Plumbers & Gas Fitters Examining Board[^7].

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Continuing Education & Specialty Certifications

Enhance your career and earnings with credentials such as:

• Medical-Gas Installer (NFPA 99)[^6]
• Backflow Prevention Assembly Tester
• Green Plumber Certification
• Sprinklerfitter Certificate
• Gas Piping Endorsements

CEUs are required in many states and often offered free through union halls.

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Skills & Traits for Success

• Mechanical aptitude & troubleshooting
• Basic algebra and blueprint reading
• Physical stamina and safe material handling
• Code compliance mindset
• Clear, courteous communication

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Pros & Cons

Pros:

• High wage ceiling
• Paid training through apprenticeships
• Business ownership potential
• Nationwide demand

Cons:

• Physically demanding
• 4-5 year training/licensing timeline
• Work in confined, wet, or hot spaces

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Day-in-the-Life: Sample Schedule

Time	Task
7:00 AM	Dispatch, review work orders
8:00 AM	Rough-in plumbing at job site
11:30 AM	Lunch + tool prep
12:00 PM	Service call: water heater swap
3:00 PM	Permit inspection + paperwork
4:30 PM	Truck cleanup, digital reports

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Find Training Near You

Ready to get started? Visit our Trade School Guide to explore accredited plumbing programs, apprenticeships, and career resources near you.

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Frequently Asked Questions

How long does it take to become a plumber?

Most apprenticeships take 4-5 years, combining on-the-job training with classroom instruction[^5].

Is plumbing a good career in 2025?

Yes. Median pay is $62,970, and demand is strong with 6% job growth expected through 2033[^1][^2].

Do plumbers need math?

Yes-basic algebra and unit conversions are used for cuts, measurements, and compliance.

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[^1]: U.S. Bureau of Labor Statistics, Occupational Outlook Handbook, Plumbers, Pipefitters, and Steamfitters, https://www.bls.gov/ooh/construction-and-extraction/plumbers-pipefitters-and-steamfitters.htm
[^2]: U.S. Bureau of Labor Statistics, May 2024 National Occupational Employment and Wage Estimates, https://www.bls.gov/oes/current/oes472152.htm
[^3]: U.S. Bureau of Labor Statistics, Occupational Employment and Wage Statistics (OEWS) by State, https://www.bls.gov/oes/current/oessrcst.htm
[^4]: Accredited trade school and online plumbing program cost averages, https://collegescorecard.ed.gov and https://nces.ed.gov
[^5]: U.S. Department of Labor, Apprenticeship.gov - Plumber program standards, https://www.apprenticeship.gov/apprenticeship-job-finder
[^6]: National Fire Protection Association (NFPA 99) Certification for Medical Gas Systems, https://www.nfpa.org
[^7]: Plumbing license requirements and career path overview, ServiceTitan, https://www.servicetitan.com/blog/plumbing-license-requirements
[^8]: O*NET Code Connector, Plumbers, https://www.onetcodeconnector.org/ccreport/47-2152.00?redir=47-2152.02
[^9]: Plumber Apprenticeship Program Overview, Emily Griffith Technical College, https://www.emilygriffith.edu/programs/plumber-apprenticeship
[^10]: CareerOneStop Apprenticeship Video: Plumbers, https://www.careeronestop.org/videos/careeronestop-videos.aspx?videocode=47215200

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