U.A. Local 393 Plumbers, Steamfitters and HVAC/R Service Technicians, Plumbing, Mechanical, Industrial and Service & Maintenance 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!
Learn more about South Bay Piping Industry on the About Us page
Visit the Contractors page to learn more about our members
Visit our News page to see the latest News & Events
Send us an email via the online form on the Contact Us page
Check out some high-profile projects completed by South Bay Piping Industry contractors and Local 393 members.
The South Bay Piping Industry has been a long time advocate of Joint Venture Silicon Valley. Every year they conduct a State of the Valley Conference: "State of the Valley is an old-fashioned “town hall”
Complimentary Tickets for 2023-2024 Season! We must receive your request 48 hours before the game starts. If you request tickets to multiple games in advance, priority may be given to requests from fans that have