Sm Waterworks Backflow Service

Based in Ontario, San Bernardino County, Sm Waterworks Backflow Service holds California contractor license #1115619, classified A (General Engineering, C36 Plumbing, C60 Welding). The license was active and clear when this listing was compiled.

The C-36 classification covers complete plumbing systems — supply lines, drains and vents, gas lines, water heaters and fixtures.

Working in the Inland Empire: The region sits between the San Andreas and San Jacinto fault systems, so seismic requirements are woven through the building code here in ways they are not everywhere.

Before you hire any plumbing contractor: For a repipe, ask what material is being used and how many walls have to be opened — and who is responsible for patching them afterwards.

License status can change at any time. Confirm license #1115619 is current, and check bond and workers’ compensation coverage, using the CSLB license lookup before signing a contract or paying a deposit.

This profile was compiled from California State License Board public records and is unclaimed — Sm Waterworks Backflow Service has not added its own details. Are you the owner? Claim this listing to add photos, services and a description of your work, or contact us to have it removed.