UA Local 398
Background Information
In August of 1910 the United Association granted a charter to form a local union for work in the San Gabriel Valley of Southern California. Local 398 began dispatching from what was then the dusty farm town of Pomona (population 10,000) half a day’s journey from downtown Los Angeles on the Southern Pacific rail line. More than a century later
Local 398 is still dispatching plumbers and fitters from the Local’s offices in Rancho Cucamonga.
The Local’s jurisdiction stretches from the peaks of the San Gabriel Mountains to the lowlands of the basin, including more than twenty major towns, among them heavily populated Corona, Rancho Cucamonga, Ontario, Pomona, and Pasadena.
Moving into its second century of service, the goal of this Local remains the same: Help our contractors grow, train men and women for well paying honorable jobs.
What we currently do for veterans at our company
🎯 Why Veterans Choose Local 398
1. Mission-Driven Work With Real Purpose
In the military, your work had meaning. That doesn’t stop here. Local 398 members build and maintain critical infrastructure: hospitals, schools, energy systems, clean water supplies, and life-saving medical gas systems.
“You’ll go from defending your country to building the systems that keep it running.”
2. Earn While You Learn—with Zero Debt
- Enroll in a state-registered 5-year apprenticeship and begin earning
- Learn plumbing, steamfitting, and HVACR while working alongside experienced union tradespeople.
- Tuition-free training means no college debt, and you’ll still use your GI Bill benefits for additional support.
3. Use Your Military Experience to Advance
- Leadership, work ethic, accountability, and teamwork are second nature to you.
- That makes you an ideal candidate for rapid advancement to foreman and superintendent roles.
- Many veterans also move into training, instruction, or even become signatory contractors.
4. Top-Tier Wages & Union Benefits
- Journeyman wages exceed $50/hour, plus overtime and per diem on many jobs.
- Full medical/dental coverage for you and your family.
- Pension and supplemental retirement plans ensure long-term security.
- Union representatives are available to help with transitions.
5. Brotherhood You Can Count On
- Local 398 offers the same tight-knit camaraderie you had in uniform.
- From the union hall to the job site, you’ll work with people who have your back.
- Our Veterans In Piping (VIP) pathway supports smooth transitions from active duty to civilian trades.
⚙️ What You’ll Do
- Plumbing: Install and maintain water, gas, and sanitary systems in commercial and industrial settings
- Steamfitting/Pipefitting: Work on high-pressure piping, process systems, and facility infrastructure
- HVACR: Repair and install climate control systems in hospitals, labs, and data centers
Apply In Person:
📍 8590 Utica Avenue, Suite 200
Rancho Cucamonga, CA 91730
🕒 Mon–Thurs, 3:00–4:30 p.m.
📞 Call (909) 945‑5557 to learn more
Bring your:
- D-214
- Valid driver’s license
- High school diploma or GED
- Social Security card and proof of citizenship/work authorization
🔗 Proud Partner of Helmets to Hardhats
UA Local 398 proudly participates in Helmets to Hardhats, connecting military service members with union careers in construction. We honor your service by offering stability, skill, and lifelong growth in return.
Additional Information
- United Association - Union of Plumbers, Fitters, Welders and Service Techs