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Plumbing in Castro Valley, CA

24 records with this classification and Castro Valley 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.

• AAA PLUMBING & REMODELING INC CLEAR
  License 1052769 · expires June 30, 2027
• ALL FIXTURE PLUMBING CLEAR
  License 774779 · expires February 29, 2028
• ALLIGATOR PLUMBING INC CLEAR
  License 995431 · expires January 31, 2027
• BAEK CONSTRUCTION CLEAR
  License 1002450 · expires March 31, 2027
• BLU PIPE PLUMBING LLC CLEAR
  License 1132566 · expires February 28, 2027
• BLUEWAVE PLUMBING AND WATER HEATERS LLC CLEAR
  License 1151565 · expires March 31, 2028
• BRI-CARR PLUMBING CLEAR
  License 658310 · expires November 30, 2026
• BUCHMANN INC CLEAR
  License 1004484 · expires November 30, 2027
• CALIFORNIA BUILDERS CLEAR
  License 988161 · expires November 30, 2027
• CLEARWATER PLUMBING CLEAR
  License 872069 · expires February 29, 2028
• DEMIGUEL PLUMBING CLEAR
  License 406575 · expires June 30, 2027
• ELIAS LAMBROS PLUMBING CLEAR
  License 561709 · expires March 31, 2027
• FRANK BONETTI PLUMBING INC CLEAR
  License 251165 · expires May 31, 2028
• GAXL GENERAL CONSTRUCTION INC CLEAR
  License 1037436 · expires March 31, 2028
• HARRIS WATER HEATERS INC CLEAR
  License 1026214 · expires November 30, 2028
• HOUSTON PLUMBING CLEAR
  License 960208 · expires April 30, 2027
• JOHN MC DONAGH BUILDERS AND ENERGY SYSTEMS CLEAR
  License 422946 · expires May 31, 2028
• JUST PLUMBING INC CLEAR
  License 909971 · expires August 31, 2027
• OLGA GARIBAY PLUMBING CLEAR
  License 1139028 · expires June 30, 2027
• PATRICK MC CARTHY CLEAR
  License 806963 · expires April 30, 2028
• PROPER PLUMBING SERVICES LLC CLEAR
  License 1100951 · expires April 30, 2028
• STREAMLINE PLUMBING & DRAIN CO CLEAR
  License 672250 · expires September 30, 2027
• WATER HEATER COMPANY CLEAR
  License 987574 · expires October 31, 2027
• WONG PLUMBING CLEAR
  License 1158954 · expires July 31, 2028