U.A. Local 393 Plumbers, Steamfitters and HVAC/R Service Technicians, Plumbing, Mechanical, Industrial and Service & Maintenance Contractors
Quality-Assured Contractors
South Bay Piping Industry contractors and their UA Local 393 members have literally been a part of every major construction project in Silicon Valley. U.A. Local 393 Plumbers and Pipefitters was established over 100 years ago here in Silicon Valley and many of our contractors are being led by 4th and 5th generation family members.
We Built This Valley!
Highlighted Projects
Check out some high-profile projects completed by South Bay Piping Industry contractors and Local 393 members.
Mills Peninsula Hospital
Levi’s Stadium
Children’s Discovery Museum
Squaw Valley
Apple Park Campus
San Jose City Hall
We Built This Valley
Over 100 years of building experience
Latest News
New Covid protocols for the construction industry, Local 393 members and employers can be found on the Santa Clara County Public Health
2025-2026 Season – San Jose Barracuda Hockey Tickets
South Bay Piping Industry is proud to be a sponsor of the San Jose Barracuda Hockey Team! Season 2025 - 2026! We have added a full season, 37 games! Reserve your tickets today! Tickets
Pipe Trades Training Center
The Pipe Trades Training Center is promoting special events throughout the year titled "Building Our Future". Please click on the link below to learn more. https://www.pttc.edu/building-our-future Thank you for your support!
Upcoming Events at Local 393 Pipe Trades Training Center
U. A. Local 393 Pipe Trades Training Center has the following upcoming event you won't want to miss! October 22, 2025 - 10:00 am to 4:00 pm BUILDING OUR FUTURE Join industry professionals and innovators
South Bay Piping Industry
