Local 398 Plumbers and Steamfitters

Local 398 Plumbers and Steamfitters Contact information, map and directions, contact form, opening hours, services, ratings, photos, videos and announcements from Local 398 Plumbers and Steamfitters, Labor Union, 8590 Utica Avenue, Rancho Cucamonga, CA.

https://local398.org/gallery/State contest photos are up on our website. Take a look.
06/04/2026

https://local398.org/gallery/
State contest photos are up on our website. Take a look.

2026 State Apprenticeship Contest The 2025 Local 398 Apprentice Graduation. 2024 State Apprenticeship Contest, San Jose CA 2023 Picnic Local 398 First Annual Golf Tournament Ram Mechanical Chino Pr…

Our hearts go out to the Murillo family after their loss. If you are able to help, please follow the link. Joseph was a ...
05/26/2026

Our hearts go out to the Murillo family after their loss. If you are able to help, please follow the link. Joseph was a 3-year apprentice, who left behind 2 sons.

Every day across North America UA members are involved in community projects and a whole host of charitable activities that support families and those in need, regardless of union affiliation. This…

https://local398.org/endorsements/Don't forget to vote. Please see our endorsements. Your vote matters.
05/20/2026

https://local398.org/endorsements/
Don't forget to vote. Please see our endorsements. Your vote matters.

Local 398 endorsements LA/OC Building Trades CHECK voter REGISTRATION REGISTER to vote

04/28/2026

This , we remember our Brothers and Sisters killed or injured on the job site – and we recommit ourselves to ensuring safe job sites and working conditions for all.

03/11/2026

Happy World Plumbing Day from the UA General Officers! Thank you to all of our members for everything you do to protect the health of our great nations.

03/09/2026
03/03/2026

Local 398, leading the charge.

02/26/2026

UA signatory contractors leading the way.

Address

8590 Utica Avenue
Rancho Cucamonga, CA
91730

Opening Hours

Monday 8am - 4:30pm
Tuesday 8am - 4:30pm
Wednesday 8am - 4:30pm
Thursday 8am - 4:30pm
Friday 8am - 4:30pm

Telephone

+19099455557

Website

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