How to Become a Plumber: Pay, Training, and Career Outlook
Learn what plumbers do, how apprenticeship and licensing work, and what to verify before choosing training.
By Nik Machemehl. Published 2026-10-12. 5 min read.
Most plumbers learn through paid apprenticeship, but the exact route depends on where you plan to work. Licensing, apprentice registration, experience hours, exams, and contractor rules vary by state and locality. Check those rules before paying for school or assuming that one timeline applies everywhere.
Plumbing can offer a clear learn-and-advance path, but it is physical, technical, and often customer-facing work. A useful plan begins with the real job, not only the salary.
Understand what plumbers do
Plumbers install and repair piping, fixtures, drains, water systems, gas lines where permitted, and connected appliances. They read plans and codes, measure and cut pipe, test systems, diagnose problems, and explain repairs to customers or project teams.
The federal Bureau of Labor Statistics profile combines plumbers with pipefitters and steamfitters. Pipefitters and steamfitters commonly work with industrial or high-pressure systems. Training and licensing can overlap, but do not assume that every job in the combined group is ordinary residential plumbing.
Decide whether the work fits you
Plumbers may work in homes, commercial buildings, factories, and construction sites. The work can involve tight spaces, ladders, lifting, outdoor weather, travel, emergencies, nights, and weekends. Common hazards include cuts, burns, and falls.
The job also rewards careful troubleshooting. A plumber must understand how a system should work, locate the failure, choose a code-compliant repair, and communicate clearly with people whose home or business may be disrupted.
Check the licensing authority first
BLS reports that most states and some localities require plumbers to be licensed. That does not mean every jurisdiction uses the same system. Titles such as apprentice, journey plumber, master plumber, and plumbing contractor can have different meanings and requirements.
Before choosing training, identify the authority where you plan to work and record:
apprentice or trainee registration rules;
required supervised experience;
accepted education or apprenticeship programs;
examinations and fees;
limits on work an apprentice may perform;
renewal or continuing-education rules; and
separate contractor or business requirements.
CareerOneStop's License Finder can help identify an agency, but CareerOneStop warns that its state data may not be complete. Confirm everything with the issuing authority.
Compare the common entry routes
Registered Apprenticeship
Most plumbers learn through apprenticeship. BLS says plumbing apprenticeships commonly last four or five years and typically combine 2,000 hours of paid work with technical instruction each year. Those figures describe a common pattern, not a universal promise.
A Registered Apprenticeship is paid employment with mentored work, related instruction, progressive wage increases, and a nationally recognized completion credential. Apply to the employer or sponsor and verify the actual wage, schedule, territory, tools, and selection process.
Helper or pre-apprenticeship route
Some people begin as helpers or enter a pre-apprenticeship that builds math, safety, tool, and workplace skills. Ask whether experience can count toward apprenticeship or licensing. Do not assume that every helper job creates a formal path forward.
Technical school
Vocational or technical school can provide a foundation in piping, code, math, and shop practice. It may help with apprenticeship selection or licensing, but only the sponsor or licensing authority can decide what credit it receives.
Before enrolling, ask local employers which programs they respect and get any promised apprenticeship or license credit in writing.
Build the skills employers need
Entry-level plumbing combines academic and practical skills:
applied arithmetic, measurements, and basic algebra;
reading drawings, specifications, and code requirements;
using hand and power tools safely;
joining, supporting, and testing piping;
diagnosing flow, pressure, drainage, and fixture problems;
documenting work; and
communicating with customers and other trades.
You do not need to arrive knowing everything. You do need the reliability to learn safely, show up across changing job sites, and accept close supervision.
Understand pay and outlook
The national median for the combined group of plumbers, pipefitters, and steamfitters was $63,800 per year, or $30.67 per hour, in May 2025, according to BLS. The lowest 10 percent earned less than $44,150 and the highest 10 percent earned more than $108,420.
This is not plumber-only data, apprentice pay, or a starting-pay promise. Location, employer, union status, industry, experience, schedule, and specialty all affect earnings. Apprentices typically earn less than fully trained workers and receive increases as they progress.
BLS projects employment for the combined occupation to grow 7 percent from 2025 to 2035, with about 42,000 openings per year on average. Many projected openings come from replacing workers who leave the occupation, not only from new job growth.
Treat specialized credentials as later decisions
New plumbers should focus first on the local entry and licensing path. Specialized credentials can become relevant after you build experience.
ASSE 5110 Backflow Prevention Assembly Tester, for example, requires five years of documented related practical experience. It is an advanced, jurisdiction-dependent testing credential—not a beginner requirement for becoming a plumber.
Likewise, an OSHA 10 or 30 card is a course-completion card, not a plumbing certification. A particular employer or jurisdiction may require one, but OSHA does not make it a universal entry credential.
Take these first steps
Choose the location where you expect to work.
Find the plumbing licensing authority and apprentice rules.
Search the Apprenticeship Job Finder, local unions, contractor associations, employers, and public colleges.
Compare prerequisites, starting wage, wage progression, work territory, class schedule, tools, and fees.
Ask schools exactly how their program counts toward apprenticeship or licensing.
Prepare examples that show reliability, mechanical problem solving, math readiness, and safe work habits.
Apply to more than one credible route when possible.
Common questions
Do I need trade school to become a plumber?
Not universally. Apprenticeship is the common route, while school, helper work, and pre-apprenticeship may be useful depending on local requirements and available programs.
Are plumbing apprenticeships paid?
Registered Apprenticeships are paid jobs. Verify that a specific opening is registered and read its wage progression and costs.
How long does it take?
BLS describes four or five years as common for apprenticeships, but the program, credit for prior learning, competency model, and licensing rules determine the actual path.
Does every state require a plumbing license?
No single national statement covers every jurisdiction. BLS says most states and some localities require licensing. Check the authority where you will work.
Is ASSE 5110 required to become a plumber?
No. It is an advanced backflow-testing credential with documented experience and training prerequisites, and local acceptance still matters.
Conclusion
Becoming a plumber usually means learning under supervision, completing structured technical instruction, and meeting the licensing rules where you work. Start with the local authority, then compare apprenticeship, helper, pre-apprenticeship, and school options against those rules.
The national numbers can help you understand the occupation, but your actual entry wage, schedule, and requirements will come from real local programs and employers.
Sources used in this guide
BLS — Plumbers, Pipefitters, and Steamfitters
O*NET — Plumbers, Pipefitters, and Steamfitters
Apprenticeship.gov — Career Seekers
CareerOneStop — License Finder
OSHA — Outreach Training Program
Facts last verified October 12, 2026. Pay is May 2025 national BLS data for the combined occupation group; projections cover 2025–35.
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