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Welding in Ontario, CA

5 records with this classification and Ontario as their locality of record, from CSLB's records, as of November 3, 2026.

Source: California Contractors State License Board (CSLB) — records as of November 3, 2026. Records change; the board’s own CSLB License Check is the current source.

• CARLYLE GLASGOW WELDING SERVICES CLEAR
  License 789615 · expires January 31, 2027
• GLENN KRAUS FABRICATION CLEAR
  License 637291 · expires February 29, 2028
• IMPACT WELDING CLEAR
  License 1155143 · expires May 31, 2028
• MALDONADO INDUSTRIES CLEAR
  License 964663 · expires August 31, 2027
• SM WATERWORKS BACKFLOW SERVICE CLEAR
  License 1115619 · expires January 31, 2028