Plumbing is a skilled trade that pays well and stays in demand
Plumbers install, repair, and maintain the water, gas, and waste systems in homes and buildings. The work is hands-on, requires problem-solving, and pays significantly more than many entry-level jobs — often $50,000 to $80,000 annually depending on location and experience, with self-employed plumbers earning more. Unlike jobs that disappear when technology changes, plumbing work cannot be outsourced or automated: someone has to show up at your house to fix a burst pipe.
The path to becoming a plumber is structured and takes time, but it does not require a four-year degree or student debt. You learn while you earn through an apprenticeship, pass licensing exams, and then decide whether to work for a company, start your own business, or move into management or inspection work.
Key Takeaways
- Plumbing apprenticeships typically last four to five years and combine paid on-the-job training with classroom instruction in codes and safety.
- You must pass a licensing exam to work as a journeyman plumber, and requirements vary by state and sometimes by city.
- Entry-level plumbers start as apprentices earning 40 to 50 percent of a journeyman's wage while learning the trade.
- Self-employed plumbers and those in high-cost areas often earn significantly more than plumbers working for established companies.
- The job involves physical demands, on-call emergencies, and exposure to hazardous materials, so it is not the right fit for everyone.
How to start: the apprenticeship route
Most plumbers begin as apprentices, which is the standard entry point into the trade. An apprenticeship combines paid work under a licensed plumber with classroom instruction, usually one or two days per week. You earn while you learn — typically 40 to 50 percent of what a journeyman plumber makes — and the employer usually covers tuition for the classroom portion.
To land an apprenticeship, you need a high school diploma or GED, pass a background check, and often pass a basic math and reading test. Some unions (like the United Association of Plumbers and Pipefitters) run their own apprenticeship programs with stricter entry requirements but often better pay and benefits. Non-union apprenticeships are run by plumbing companies, trade schools, or community colleges and vary in quality and structure.
The apprenticeship typically lasts four to five years. During that time you learn to read blueprints, understand plumbing codes, install and repair pipes, work with different materials (copper, PVC, cast iron), handle gas lines, and troubleshoot problems. You also learn safety — working at heights, in confined spaces, with hazardous materials, and around electrical systems.
Licensing and the journeyman exam
After completing your apprenticeship hours (usually 8,000 to 10,000 hours of on-the-job work), you become may be able to access to sit for the journeyman plumber exam. This is a state or local test that covers plumbing codes, safety, materials, and practical problem-solving. Passing it means you are licensed to work independently as a plumber in that jurisdiction.
Requirements vary significantly by location. Some states require a certain number of classroom hours in addition to work hours. Some cities have their own exams on top of state requirements. A few states have reciprocity agreements, meaning a license from one state is recognized in another, but most do not — if you move, you may need to test again or meet additional requirements.
After becoming a journeyman, you can work for a company, start your own business, or pursue a master plumber license (which requires additional experience and another exam). A master license typically allows you to run a plumbing business, hire and supervise other plumbers, and pull permits for larger projects.
What the work actually involves day to day
A plumber's day varies widely. You might spend the morning installing new water lines in a house under construction, the afternoon unclogging a drain in an apartment building, and the evening responding to an emergency call for a burst pipe. Some days are routine maintenance; others involve diagnosing a problem you have never seen before.
The physical demands are real. You crawl under houses, work in attics and basements, lift heavy materials, and spend hours on your feet or in awkward positions. You work with your hands and with tools — wrenches, pipe cutters, cameras to inspect inside pipes, pressure gauges, and soldering equipment. You also interact with customers, explain what is wrong and why it costs what it costs, and manage your time across multiple jobs.
Emergency calls are part of the job, especially for plumbers who work for companies or run their own business. A pipe bursts at 2 a.m. on a Sunday, and someone has to answer. On-call pay and emergency rates vary by employer and location, but they are usually higher than standard rates.
Pay and earning potential
Entry-level apprentices typically earn $15 to $20 per hour, depending on location and whether the apprenticeship is union or non-union. As you progress through the apprenticeship, your wage increases — often reaching $25 to $35 per hour by the final year.
Journeyman plumbers (licensed, post-apprenticeship) typically earn $50,000 to $80,000 annually in most parts of the country. This varies by region: plumbers in high-cost areas like California, New York, and the Northeast generally earn more. Union plumbers often earn more than non-union plumbers and have better benefits, though union apprenticeships can be harder to enter.
Self-employed plumbers and those who own their own business often earn significantly more — sometimes $100,000 or more annually — but they also carry the costs of running a business: equipment, vehicles, insurance, licensing, and the risk that work is inconsistent. Master plumbers who run larger operations or move into inspection and code enforcement work can earn even more.
Physical demands and safety concerns
Plumbing is physically demanding work. You bend, crouch, lift, and work in tight spaces regularly. Back and knee injuries are common in the trade. You also work with hazardous materials: lead solder (in older homes), asbestos insulation, sewage, and chemicals used to clear drains. Proper safety equipment and training are essential.
You work in all weather conditions — in attics during summer heat, in crawl spaces during winter cold, and outdoors during storms. You are exposed to mold, bacteria, and other biological hazards. You work around electrical systems and gas lines, which carry real risks if you make a mistake. The job requires constant attention to safety protocols and the discipline to follow them even when you are tired or in a hurry.
Union versus non-union plumbing
Union plumbers typically earn more, have better benefits (health insurance, pension, paid time off), and work under negotiated contracts that define hours, overtime, and working conditions. Union apprenticeships are often more rigorous and harder to enter, but they provide structured training and job placement support. The United Association of Plumbers and Pipefitters is the largest union for plumbers in North America.
Non-union plumbers work for independent companies or run their own businesses. Pay is often lower than union rates, benefits vary widely, and working conditions depend on your employer. However, non-union apprenticeships are often easier to enter, and you may have more flexibility in how you work and where you work.
Both paths lead to a valid license and a career in plumbing. The choice depends on what matters to you: job security and benefits (union) or flexibility and potentially higher earnings as a business owner (non-union).
Alternatives within the plumbing field
Not every plumbing career follows the same path. Some plumbers specialize: gas fitters work exclusively with gas lines, pipefitters work on industrial and commercial systems (often larger pipes and more complex installations), and steamfitters work with steam and hot water systems. These specializations often pay more and require additional training beyond a basic plumbing apprenticeship.
Other plumbers move into inspection and code enforcement, working for cities or counties to ensure new construction and repairs meet plumbing codes. This work is typically office-based with site visits, offers stable employment and benefits, and does not require the physical demands of active plumbing work. Some plumbers become instructors, teaching apprentices at trade schools or union training centers.
Frequently Asked Questions
Do I need a college degree to become a plumber?
No. You need a high school diploma or GED and an apprenticeship. The apprenticeship combines paid work with classroom instruction and typically takes four to five years. No four-year degree is required, and you earn while you learn instead of paying tuition.
How long does it take to become a licensed plumber?
Most apprenticeships last four to five years of combined work and classroom time. After completing your apprenticeship hours (usually 8,000 to 10,000), you sit for the journeyman exam. Total time from start to licensed journeyman is typically five to six years.
Can I move to a different state with my plumbing license?
It depends on the state. Some states have reciprocity agreements, but most do not. If you move, you may need to pass that state's journeyman exam or meet additional requirements. Check with the state licensing board in your destination state before you move.
What is the difference between a journeyman and a master plumber?
A journeyman is licensed to work as a plumber and perform plumbing work. A master plumber has additional experience (usually five or more years as a journeyman) and passes a more advanced exam. A master license allows you to run a plumbing business, hire employees, and pull permits for larger projects.
Is plumbing work available year-round?
Yes, but it varies by season and location. Emergency calls (burst pipes, clogs) happen year-round. New construction and renovation work may slow in winter in cold climates. Self-employed plumbers may experience slower periods, while plumbers working for larger companies often have more consistent work.