Plumbing is a hands-on trade you learn by doing, and the usual path in the US is an apprenticeship: about 4 to 5 years of paid on-the-job work plus roughly 144 hours of classroom study a year, ending in a journeyman license. Your day involves reading blueprints and code, measuring and cutting pipe, joining it by soldering, brazing, solvent cement, or threading, then pressure-testing to find leaks. This roadmap starts with the basics (safety, math, tools, how water and waste move through a building), builds to job-ready skills, and then moves to advanced systems and the licenses that make you a
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Stage 1 of 4 · about 10 weeks
Learn jobsite safety (OSHA 10 topics), basic trade math (fractions, measuring, pipe slope of 1/4 inch per foot, simple offsets), hand tools, pipe materials (copper, PEX, PVC, ABS, cast iron), and how supply, drain-waste-vent (DWV) systems work. Practice cutting, deburring, and joining scrap pipe at home, and apply to helper and apprenticeship openings.
Jobsite safety (OSHA 10 topics)
Plumbing puts you in trenches, on ladders, near torches, and around sewage. Employers and apprenticeship programs want people who will not get hurt or hurt others. Many ask for an OSHA 10 card.
Basic trade math and measuring
Every cut, slope, and offset is math. A wrong measurement wastes pipe and time, and a wrong slope makes a drain back up or run dry of water, leaving solids behind.
Hand tools and pipe materials
You will be handed tools and pipe all day. Knowing the right tool and the right material for the job makes you useful on day one and prevents damage and leaks.
How supply and DWV systems work
Before you install anything you must see the whole system in your head. If you understand where water goes and why vents exist, instructions on the job make sense and you can spot problems.
Getting hired as a helper or apprentice
Plumbing is learned on the job, paid. Your goal in this stage is to get in the door with a program or a company that will train you.
Then 3 more stages (about 320 weeks in all) with lessons, drills, projects, 10 interview questions with strong answers and free resources.