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Contractor license records in Ontario, CA

918 records with Ontario as their locality of record in CSLB's records, as of November 3, 2026. Statuses print as the board records them; a record listed as suspended is not a current credential.

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.

By classification in Ontario

General Building (338) · Electrical (137) · General Engineering (61) · Warm-Air Heating, Ventilating and Air-Conditioning (51) · Painting and Decorating (50) · Plumbing (49) · Low Voltage Systems (36) · Landscaping (34) · Concrete (32) · Flooring and Floor Covering (32) · Roofing (26) · Cabinet, Millwork and Finish Carpentry (22) · Doors, Gates and Activating Devices (22) · Glazing (21) · Drywall (20) · Ceramic and Mosaic Tile (18) · Synthetic Products (17) · Swimming Pool (16) · Masonry (16) · Structural Steel (13) · Fire Protection (12) · Refrigeration (12) · Building Moving/Demolition (12) · Pool and Spa Maintenance (11) · Window Coverings (9) · Sanitation System (9) · Prefabricated Equipment (9) · Lathing and Plastering (9) · Earthwork and Paving (8) · Metal Products (8) · Parking and Highway Improvement (7) · Sign (7) · Reinforcing Steel (7) · Machinery and Pumps (7) · Concrete-Related Services (7) · Hazardous Substance Removal Certification (6) · Ornamental Metal (6) · Fencing (5) · Service Station Equipment and Maintenance (5) · Sheet Metal (5) · Welding (5) · Framing and Rough Carpentry (4) · Construction Cleanup (4) · Tree Service (4) · Residential Remodeling (4) · Non-Electrical Sign Installation (3) · Solar (3) · Non-specialized (3) · Asbestos Certification (3) · Asbestos Abatement (3) · Tree and Palm (3) · Paperhanging (2) · Awnings (2) · Construction Zone Traffic Control (2) · Boiler, Hot-Water Heating and Steam Fitting (2) · Pipeline (2) · Insulation and Acoustical (2) · General Manufactured Housing (1) · Suspended Ceilings (1) · Well Drilling (1) · Lock and Security Equipment (1) · Hardware, Locks and Safes (1) · Safes and Vaults (1) · Siding and Decking (1) · Scaffolding (1)

• TRINITY ELECTRICAL CLEAR
  License 1086414 · expires January 31, 2028
• TRINITY FRAMING CLEAR
  License 1030427 · expires August 31, 2027
• TRINITY NETWORX LLC CLEAR
  License 1088071 · expires March 31, 2028
• TRIPLE H PLASTERING INCORPORATED CLEAR
  License 517157 · expires September 30, 2027
• TRITON GLOBAL SERVICES INC DBA TRITON LOW VOLTAGE SERVICES CLEAR
  License 1069175 · expires September 30, 2028
• TRUE CARE LANDSCAPE CLEAR
  License 1160142 · expires August 31, 2028
• TRUST ELECTRIC CLEAR
  License 1066593 · expires July 31, 2028
• TURBINE REPAIR SERVICES LLC CLEAR
  License 981674 · expires March 31, 2027
• TURNBOW ELECTRICAL SERVICES CLEAR
  License 525216 · expires July 31, 2028
• TYCO WALLCOVERING LLC CLEAR
  License 1037016 · expires May 31, 2027
• ULTIMATE CONSTRUCTION CLEAR
  License 1098701 · expires November 30, 2028
• ULTIMATE ELECTRIC LLC CLEAR
  License 1104900 · expires June 30, 2027
• UNUM CONSTRUCTION CLEAR
  License 809385 · expires June 30, 2028
• UPLAND CONTRACTING INC CLEAR
  License 481317 · expires April 30, 2028
• UPRIGHT COMMUNICATIONS INC CLEAR
  License 1002378 · expires March 31, 2027
• URGENT SEPTIC SOLUTIONS LLC CLEAR
  License 1121506 · expires May 31, 2028
• UWING CONSTRUCTION INC CLEAR
  License 1143733 · expires March 31, 2028
• V T ELECTRIC INC CLEAR
  License 763236 · expires May 31, 2027
• VALLEY CARPETS CLEAR
  License 1163036 · expires October 31, 2028
• VALLEY CARPETS Work Comp Susp
  License 663198 · expires January 31, 2027
• VALROSE INTERIORS CLEAR
  License 782909 · expires August 31, 2028
• VANEDI HOME IMPROVEMENT INC CLEAR
  License 1147022 · expires December 31, 2027
• VAREZ CONSTRUCTION INC CLEAR
  License 1138147 · expires May 31, 2027
• VARGAS PAINTING CLEAR
  License 1061252 · expires December 31, 2027
• VARGOS PLUMBING & SEWER INC CLEAR
  License 1138500 · expires June 30, 2027
• VELTEL INFRASTRUCTURE SERVICES LLC CLEAR
  License 1049531 · expires January 31, 2027
• VERTEX COATINGS INC CLEAR
  License 756237 · expires November 30, 2026
• VG-TECH LLC CLEAR
  License 1022848 · expires September 30, 2027
• VGC CLEAR
  License 1138625 · expires June 30, 2027
• VICTOR OROZCO CONSTRUCTION CLEAR
  License 982481 · expires April 30, 2027
• VICTOR ROMERO CLEAR
  License 911371 · expires February 29, 2028
• VILLA GENERAL CONTRACTING CLEAR
  License 1114540 · expires December 31, 2027
• VILLALOBOS GLASS CO INC CLEAR
  License 851274 · expires March 31, 2028
• VIRTUE AIR CONDITIONING INC CLEAR
  License 1053503 · expires September 30, 2027
• VLP DESIGN BUILD CLEAR
  License 1111387 · expires October 31, 2027
• VRV ROOFING INC CLEAR
  License 1103520 · expires April 30, 2027
• W M CONSTRUCTION GROUP INC CLEAR
  License 1104199 · expires May 31, 2027
• WARREN COLLINS AND ASSOCIATES INC DBA COLLINS COMPANY CLEAR
  License 715532 · expires November 30, 2027
• WATER SOLUTIONS CLEAR
  License 954619 · expires November 30, 2028
• WATTLINE ELECTRIC INC CLEAR
  License 1154320 · expires April 30, 2028
• WAVCOMM CLEAR
  License 724434 · expires June 30, 2028
• WEST BAY GENERAL CONSTRUCTION CLEAR
  License 779015 · expires July 31, 2027
• WEST COAST CURRENT CLEAR
  License 1105587 · expires June 30, 2027
• WEST COAST PIPELINE SPECIALIST CLEAR
  License 1129511 · expires November 30, 2028
• WEST COAST PLUMBING CLEAR
  License 853144 · expires January 31, 2027
• WEST END HEATING AND AIR CLEAR
  License 1110549 · expires September 30, 2027
• WEST UNITED BUILDER CLEAR
  License 1039373 · expires May 31, 2028
• WEST WIND MECHANICAL INC CLEAR
  License 1163372 · expires October 31, 2028
• WESTERN DECK AND STEEL ERECTION DBA WESTERN METAL DECK CLEAR
  License 550219 · expires December 31, 2026
• WESTFIRE PREFABRICATED FIREPLACE CLEAR
  License 1148395 · expires December 31, 2027

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