UA Local Union No. 343 - About Us

UA Local 343 Plumbers and Steamfitters were chartered in 1906. For over 100 years we’ve been protecting the health of our nation through Plumbing and Pipefitting and Service work. The past 100 years have been a testament to UA Local 343’s commitment, perseverance and loyalty to its members, and to the community of Solano and Napa Counties.

Our contractors employ the members of local 343 in many construction industries. We work in the Heavy Industrial, Commercial and Residential Sectors.

Our members are required to graduate from the UA Internationals certified and accredited Joint Apprenticeship Training Program which produces the best Journeymen in the industry. This 5-year apprenticeship program which requires an apprentice to have over 10,000 hours of on-the-job training as well as over 1,200 hours of classroom education from certified instructors means that you have the most qualified workforce at your disposal.

Our workforce takes pride in partnering with our signatory contractors to deliver sophisticated piping systems to the end user which are important to the infrastructure of our community.

We do it right the first time, so when Medical Providers in Solano and Napa County build new or expand existing facilities, they call on the skilled members of Local 343. The complicated medical gas installations are a vital piece of life saving equipment, along with equally important commodities such as steam systems, potable water systems, and comfort piping systems. These systems are necessary to support the facilities which ensures public safety and saves lives.

There are numerous examples of our participation in developing our communities. We have experience and are currently work in many areas such as:

  • Bio Tech Research and Manufacturing Facilities
  • Oil Refineries
  • Educational  Institutions, both Public and Private
  • Food and Beverage Processing Facilities
  • Wineries
  • Hotels
  • Military Installations
  • Processing Facilities
  • Office Buildings
  • Residential Homes and Developments
  • Strip Malls
  • Resort Destinations
  • Power Plants
  • Water and Waste Treatment Facilities

Local 343 is extremely proud to be a productive member of the Solano and Napa County business community. Since its inception, we’ve taken an active role and will continue to play an even bigger role as Northern California continues to grow into one the best places in the United States to Work, Live and Play!

Steven B McCall – Business Manager, Financial Secretary-Treasurer
401 Nebraska Street
Vallejo, CA 94590
Ph:  (707) 644-4071
Fx: (707) 644-0314