Skip to content
Nearby Plumber — nearbyplumber.com · License-verified plumbing directory · printed Oct 21, 2026
Plumbers › California › San Bernardino County › SM Waterworks Backflow Service
Licensed C-36 Plumbing · Ontario, CA

SM Waterworks Backflow Service

✓ CSLB Verified Ontario, CA · San Bernardino County

SM Waterworks Backflow Service, based in Ontario, CA, holds CSLB license 1115619 (C-36 Plumbing), which read active when we checked it on Oct 16, 2026.

License
C-36 Plumbing
License status
● Active
Last checked
Oct 16, 2026

CSLB license verification for SM Waterworks Backflow Service

LicenseLicense numberStatus
C-36 Plumbing 1115619 ● Active
Last checked against CSLB records: Oct 16, 2026· Look up license 1115619 on the CSLB license check ↗

License data from the Contractors State License Board (cslb.ca.gov), published on its Public Data Portal, copied on the date shown. Neither this site nor the information as presented here is endorsed by the State of California or any state agency.

What the CSLB badge means

  • Their license number appears in the CSLB record and reads active on the date shown.
  • The name and county we list match that record.
  • We re-check on a schedule and date-stamp every check.

What the badge does not mean

  • It is not a recommendation, an endorsement or a quality rating.
  • It does not confirm insurance, bonding or pricing.
  • It does not mean they are taking work right now.

Where SM Waterworks Backflow Service is based

County of record on the CSLB listing. That is where the business is filed, not where it works. The license is valid statewide.

SM Waterworks Backflow Service reviews

No customer reviews of SM Waterworks Backflow Service yet. We only publish reviews from confirmed customers after completed work, and we never import or synthesize them.

(909) 828-1512 Get 3 free quotes
Free plumber quotes

Get free plumber quotes in San Bernardino County.

This is not a private message to SM Waterworks Backflow Service. Tell us once and we send it to up to 3 license-verified San Bernardino County plumbers — or call SM Waterworks Backflow Service directly: (909) 828-1512. Free, no spam, delete your request anytime.

Plumbing Quote Request

Secure form. Sent over an encrypted connection to up to 3 license-verified plumbers. Never sold to data brokers, and you can have your request deleted anytime.