• Welcome to the
    Plumbers & Steamfitters 342
    Plumbing • Pipefitting • HVAC
    UA Lcoal 342
  • A Tradition of Piping.
    Hardworking, Highly Skilled
    and Dedicated Workforce
    Since 1914.


In an effort to keep you as informed as possible, it is important that you check the website often.  CLICK HERE to visit our COVID-19 Coronavirus page. 

In addition, we ask that you scroll down on the page as Business Manager Che' Timmons has started a section on the website that he will use to update you on developments as they occur in his words.

Out of Work List

Members who need to register on the Out-Of-Work List may either visit our office in person or do so electronically.
If you plan to visit our office, please come during normal office hours, Monday through Friday between 8:00am and 4:30pm. Please bring a copy of your termination notice and be reminded that all visitors entering our building must use a facial covering and maintain social distancing.
If you are a UA 342 member and would like to register electronically, we require a copy of the Termination Notice completed by the employer. Please contact the Business Office at 925-686-5880 to request a Sign-In Form or email a request to signin@ua342.org.

 IMPORTANT NOTE: When completing the Sign-In Form, there is an option to be placed on the Not Available List for members who wish to register on the Out-of-Work list, but are not immediately available for work. If you check yes, you will remain on the Not Available List until you submit a subsequent request in writing to signin@ua342.org requesting to be returned to the applicable active Out-Of-Work List. While you are on the Not Available List, you will NOT be called regarding dispatch opportunities.  If you check no, you will be placed on the applicable active Out-of-Work list as usual and called for work in accordance with hiring hall procedures. Attention Apprentices, the JATC Office will be notified if you are placed on the Not Available List.

Looking for a career in the piping industry?

Representing qualified journeymen and apprentices of the plumbing, pipefitting, and HVACR service industry for more than a century.

Welcome to Skilled & Trained Safe Dedicated

Steamfitters Local 342 was chartered into the United Association of Journeyman and Apprentices in the Plumbing and Pipefitting Industry of the United States and Canada in 1914.

Welcome to UA Local 342

Steamfitters Local 342 was chartered into the United Association of Journeyman and Apprentices in the Plumbing and Pipefitting Industry of the United States and Canada in 1914. It began with twenty-one charter members who sought a shorter work-day, wage increases, and better working conditions. Those original members endured adverse conditions that are well documented in the history of the American Labor Movement.

What started as a small band of steamfitters grew to encompass workers in the welding, pipeline, refrigeration, and plumbing trades. The acquisition of these skilled trades came by way of mergers with other UA locals, including Plumbers Local 444 in 1994, and helped to establish one of the strongest examples of a combination local. We are proud of our humble beginnings and strive to maintain the highest standard of excellence.

Pay Your Dues!

We have more options for Active Members to pay their Membership Dues.

Apprenticeship Log-In

For On the Job Training (OJT) Hours

A Message from Business Manager Che' Timmons

Local 342 Training During COVID-19


There have been extensive efforts to ensure we are continuing to provide a safe learning environment for the advancement of our skilled and trained work force during these unprecedented times.


Our Notices

Members Only

We want our members to have the latest information on what is happening at the Union Hall. Click below to check out upcoming events & more!


Are you willing to work hard & get paid well while being trained by some of the best instructors in the industry? Click the image to learn more.


Need a contractor? Search out local directory for the right individual for the job! We have the person you are looking for!


If you are interested in learning more about our apprenticeship program or how to apply for it, please feel free to contact us. This information will also be helpful to answer some of your questions:

Click Here