If you’re in your third year as a plumbing apprentice—or considering this rewarding trade—you’re probably wondering: how much does a 3rd year apprentice plumber earn? It’s a smart question. After all, you’ve invested time, sweat, and effort into mastering pipefitting, drainage systems, and local codes. You deserve to know if your paycheck reflects your growing expertise. In this guide, we’ll break down real earnings, regional differences, and what you can do to maximize your income as you near journeyman status.
What Is a 3rd Year Apprentice Plumber?
Before diving into salary figures, let’s clarify what a 3rd year apprentice plumber actually is. Plumbing apprenticeships typically last 4 to 5 years, combining on-the-job training with classroom instruction. By the third year, apprentices have moved beyond basic tasks like carrying tools or cutting pipes. They’re now:
Installing water heaters and gas lines
Reading blueprints and interpreting plumbing codes
Troubleshooting complex leaks or drainage issues
Working with minimal supervision
This growing responsibility directly impacts earnings—more skill equals higher pay.
Average Salary for a 3rd Year Apprentice Plumber (2025 Data)
According to the U.S. Bureau of Labor Statistics (BLS) and industry reports from Plumbing-Heating-Cooling Contractors Association (PHCC), the average hourly wage for a 3rd year plumbing apprentice in the U.S. ranges from $18 to $25 per hour as of 2025.
That translates to an annual income of $37,000 to $52,000, assuming a standard 40-hour workweek. However, this varies significantly by location, union status, and employer type.
💡 Pro Tip: Union apprentices (e.g., through UA Plumbers & Pipefitters) often earn 10–20% more than non-union peers, plus benefits like health insurance and retirement plans.
How Apprenticeship Pay Scales Work
Most plumbing apprenticeships follow a progressive pay scale tied to completion percentage. Here’s a typical structure:
1st
50%
$15/hr
2nd
60%
$18/hr
3rd
70–75%
$21–$22.50/hr
4th
80–85%
$24–$25.50/hr
5th
90–95%
$27–$28.50/hr
This structure rewards consistency and skill development. By year three, you’re earning nearly three-quarters of a licensed plumber’s wage—while still learning on the job.
Factors That Influence a 3rd Year Apprentice’s Earnings
Not all plumbing apprentices earn the same—even in the same city. Key variables include:
Union vs. Non-Union: Union programs (like those affiliated with the United Association) offer structured pay increases and benefits.
Geographic Location: Urban areas with high construction demand (e.g., Seattle, Boston) pay more.
Specialization: Apprentices working in commercial plumbing, medical gas, or green plumbing may earn premiums.
Overtime: Many plumbing jobs include overtime, especially during emergencies or peak seasons—boosting annual income by 10–25%.
Employer Size: Large contractors often pay more than small local shops but may offer less hands-on mentorship.
Real-Life Example: Meet Carlos, a 3rd Year Apprentice in Chicago
Carlos, 22, joined a UA Local 130 apprenticeship in Chicago after high school. By his third year:
Hourly wage: $23.50
Weekly hours: 45 (including 5 hrs overtime)
Monthly take-home: ~$3,800 after taxes
Benefits: Health insurance, pension contributions, paid training
“I’m making more than some of my friends with college degrees—and I have zero student debt,” Carlos says. “Plus, I’ll be a journeyman in two years with a $70K+ salary.”
Stories like Carlos’s are increasingly common as the skilled trades gain recognition as high-value, debt-free career paths.
How to Maximize Your Earnings as a 3rd Year Apprentice
You’re not just working—you’re building a future. Here’s how to boost your income now and set up long-term success:
Track Your Hours Accurately Ensure all on-the-job and classroom hours are logged. Many programs require 1,500–2,000 work hours per year for advancement.
Pursue Certifications Early Get certified in backflow prevention, OSHA 10, or lead-safe practices. These credentials make you more valuable—and billable.
Ask for Overtime (Strategically) Volunteering for weekend emergency calls or summer construction surges can significantly increase your annual earnings.
Network Within Your Union or Trade School Strong relationships often lead to better job assignments, mentorship, and faster promotion.
Start Planning for Journeyman Exam Passing your state’s journeyman exam unlocks full wage potential. Begin studying 6–12 months in advance.
FAQ: Common Questions About 3rd Year Apprentice Plumber Pay
Q1: Do 3rd year plumbing apprentices get benefits?
A: Yes—especially in union programs. Most offer health insurance, dental, vision, and retirement contributions. Non-union apprentices may receive limited or no benefits, so clarify this during hiring.
Q2: Can a 3rd year apprentice work independently?
A: No. Apprentices must always work under the supervision of a licensed journeyman or master plumber. Independent work without a license is illegal in all 50 states.
Q3: How does overtime affect apprentice pay?
A: Overtime is typically paid at 1.5x the regular hourly rate. For a 3rd year apprentice earning $22/hr, overtime = $33/hr—a major income booster.
Q4: Are plumbing apprentices paid during classroom training?
A: In registered apprenticeship programs (approved by the U.S. DOL), yes—you’re paid for both on-site and classroom hours. Some private programs may not compensate for school time, so verify upfront.
Q5: What’s the next step after the 3rd year?
A: Continue your apprenticeship into years 4 and 5, then sit for your journeyman plumber exam. Once licensed, average earnings jump to $55,000–$80,000+ annually.
Q6: Is plumbing a stable career long-term?
A: Absolutely. The BLS projects 5% job growth for plumbers through 2032, faster than average. With aging infrastructure and new green building codes, demand remains strong. Learn more on Wikipedia’s plumbing page .
Conclusion
So, how much does a 3rd year apprentice plumber earn? Realistically, between $37,000 and $52,000 per year—with room to grow through overtime, certifications, and geographic mobility. More importantly, you’re building a recession-resistant, high-demand career with a clear path to six-figure earnings as a master plumber or business owner.
If you found this guide helpful, share it with a friend considering the trades! Whether on Facebook, LinkedIn, or a trade school forum, spreading accurate info helps more people discover the value of skilled careers.
Your future in plumbing isn’t just about pipes—it’s about prosperity. 💧🔧
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