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Plumbing in Los Osos, CA

12 records with this classification and Los Osos 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.

• BAMBOO PLUMBING & REMODELING CLEAR
  License 802626 · expires January 31, 2028
• BRYAN HANFT PLUMBING CLEAR
  License 993732 · expires June 30, 2028
• FLETCHER HESSE PLUMBING INC CLEAR
  License 979873 · expires July 31, 2027
• GARRETT BALL PLUMBING CLEAR
  License 1036835 · expires March 31, 2028
• JAMES PATRICK CORCORAN CLEAR
  License 669990 · expires April 30, 2027
• MARK WALLACE PLUMBING CLEAR
  License 661873 · expires December 31, 2026
• MAXIMUM SERVICES COMPANY CLEAR
  License 738081 · expires July 31, 2027
• MIKE FLEMING CONSTRUCTION CLEAR
  License 538809 · expires August 31, 2028
• NEWLINE PLUMBING COMPANY CLEAR
  License 857085 · expires April 30, 2027
• ROBERT B LARSON CLEAR
  License 490651 · expires March 31, 2027
• ROBERT KENNETH BRUINGTON CLEAR
  License 364066 · expires April 30, 2027
• SHAMROCK PLUMBING CLEAR
  License 860285 · expires January 31, 2027