Plumber Career Guide - Salary, Training & AI-Proof Score
Plumbers install and repair water supply lines, drainage systems, and related fixtures in residential, commercial, and industrial buildings. They work in tight spaces, diagnose complex leak and pressure issues, and must ensure compliance with plumbing codes.
What Does a Plumber Do?
- Install pipes for water supply, drainage, and gas systems
- Repair or replace defective pipes, fittings, and fixtures
- Study blueprints to determine material and equipment needs
- Locate and mark positions for pipe connections and passage holes
- Test pipe systems for leaks, pressure, and code compliance
- Collaborate with contractors and inspectors on new construction projects
- Respond to emergency calls for burst pipes, clogs, and flooding
- Install and service water heaters, garbage disposals, and dishwashers
How to Become a Plumber
- Obtain a high school diploma or GED; algebra and shop courses are beneficial
- Apply for a registered apprenticeship through UA (United Association) or a local plumbing contractor
- Complete 4-5 year apprenticeship with 246+ hours of technical instruction per year
- Work toward the required hours for journeyman status (typically 8,000 field hours)
- Pass the journeyman plumber licensing exam in your state
- Pursue master plumber license to start your own contracting business
Plumber Salary by State
Top-paying states for plumbers based on BLS data:
| State | Median Salary |
|---|---|
| IL | $88,310 |
| MN | $82,700 |
| AK | $80,520 |
| NJ | $79,650 |
| OR | $76,990 |
Is Plumber AI-Proof?
Verdict
Plumbing is exceptionally AI-proof due to the physical nature of every job, strict licensing requirements, and the fact that pipes exist in inaccessible locations requiring human hands. As aging infrastructure across the U.S. requires replacement, demand for plumbers will remain strong for decades.
Why Plumbers Are Safe from AI
- Every plumbing system is physically unique with no two jobs identical
- Emergency leak and sewage situations require immediate on-site human response
- Work in crawl spaces and walls demands manual dexterity AI robots cannot replicate
- State licensing requirements ensure human accountability for all permitted work
- Physical diagnosis of pipe corrosion, pressure issues, and root intrusion requires hands-on assessment
Potential AI Impact
- Leak detection technology and smart water sensors may reduce diagnostic service calls
- Prefabricated plumbing assemblies reduce on-site complexity for new construction
Licensing & Certifications
- Journeyman Plumber License (state-issued)
- Master Plumber License
- Backflow Prevention Assembly Tester Certification
- OSHA 30 Construction Safety
- Medical Gas Installer Certification (ASSE 6010)
Find Plumber Training Programs
Browse trade schools offering plumber programs by state:
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Plumber FAQ
The median salary for plumbers is $61,550 per year according to the Bureau of Labor Statistics. Top earners in high-demand states can make significantly more.
Most plumber training programs take 4-5 years (apprenticeship). This includes classroom instruction and hands-on training or apprenticeship experience.
Plumbing is exceptionally AI-proof due to the physical nature of every job, strict licensing requirements, and the fact that pipes exist in inaccessible locations requiring human hands. As aging infrastructure across the U.S. requires replacement, demand for plumbers will remain strong for decades.
Common certifications for plumbers include: Journeyman Plumber License (state-issued), Master Plumber License, Backflow Prevention Assembly Tester Certification, OSHA 30 Construction Safety, Medical Gas Installer Certification (ASSE 6010). Requirements vary by state, so check your local licensing board.