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Contractor license records in Diamond Bar, CA

312 records with Diamond Bar 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 Diamond Bar

General Building (180) · Electrical (46) · Warm-Air Heating, Ventilating and Air-Conditioning (35) · Plumbing (27) · General Engineering (14) · Painting and Decorating (12) · Low Voltage Systems (10) · Landscaping (9) · Ceramic and Mosaic Tile (8) · Flooring and Floor Covering (6) · Roofing (5) · Fire Protection (5) · Refrigeration (4) · Cabinet, Millwork and Finish Carpentry (4) · Concrete (3) · Hazardous Substance Removal Certification (3) · Concrete-Related Services (3) · Insulation and Acoustical (3) · Glazing (3) · Sign (2) · Elevator (2) · Water Conditioning (2) · Earthwork and Paving (2) · Drywall (2) · Sanitation System (2) · Pool and Spa Maintenance (2) · Tree Service (1) · Solar (1) · Masonry (1) · Synthetic Products (1) · Swimming Pool (1) · Structural Steel (1) · Doors, Gates and Activating Devices (1) · Asbestos Certification (1) · Building Moving/Demolition (1) · Ornamental Metal (1) · Well Drilling (1) · Boiler, Hot-Water Heating and Steam Fitting (1) · Residential Remodeling (1) · Prefabricated Equipment (1)

• S V L CONSTRUCTION OPERATIONS CLEAR
  License 1131331 · expires January 31, 2027
• SAMUEL J LEE CLEAR
  License 1060372 · expires November 30, 2027
• SEAN KRUBINSKI CLEAR
  License 992919 · expires May 31, 2028
• SERVICE WIZARDS CLEAR
  License 797071 · expires July 31, 2027
• SERVICEMASTER RESTORATION BY DISASTER SERVICES CLEAR
  License 1113356 · expires November 30, 2027
• SEVEN DIAMONDS INC CLEAR
  License 1143632 · expires September 30, 2027
• SHORELINE CONSTRUCTION AND DEVELOPMENT CLEAR
  License 1141851 · expires August 31, 2027
• SMART CONSTRUCTION CLEAR
  License 1056267 · expires July 31, 2027
• SO CAL HARDWOOD FLOORS CLEAR
  License 824420 · expires September 30, 2027
• SONG CONSTRUCTION CLEAR
  License 1151604 · expires March 31, 2028
• STEVEN JIANG CLEAR
  License 1158255 · expires July 31, 2028
• STL HOME BUILD INC CLEAR
  License 1136498 · expires April 30, 2027
• STURDI-QUICK BUILDING SYSTEMS CLEAR
  License 862157 · expires November 30, 2027
• SUNCOAST HOME ELEVATORS CORP CLEAR
  License 1073048 · expires January 31, 2027
• SUNDIAL CONCRETE CONSTRUCTORS CLEAR
  License 1009010 · expires November 30, 2027
• SUNRISE BUILDING GROUP INC CLEAR
  License 1155622 · expires May 31, 2028
• SUNSHINE ROOFING INC CLEAR
  License 755126 · expires January 31, 2027
• T&L BUILDING GROUP CLEAR
  License 1137830 · expires May 31, 2027
• TAHADA CONSTRUCTION CLEAR
  License 934622 · expires June 30, 2027
• TASCO PACIFIC FIRE PROTECTION CLEAR
  License 750602 · expires March 31, 2027
• TETRA TECH BAS INC CLEAR
  License 572017 · expires June 30, 2027
• THE HOT MOPPER CLEAR
  License 978099 · expires May 31, 2028
• THLC CORPORATION CLEAR
  License 1077041 · expires June 30, 2027
• THM ASSOCIATES INC CLEAR
  License 1052347 · expires April 30, 2027
• THREE STAR CONSTRUCTION & PAINTING CO Contr Bond Susp
  License 337314 · expires June 30, 2027
• TO THE MAX CONSTRUCTION CLEAR
  License 998426 · expires November 30, 2026
• TODD CLARK DBA ROOTER SHOOTER CLEAR
  License 800418 · expires October 31, 2027
• TODD MICHAEL HALSTEAD CLEAR
  License 685211 · expires March 31, 2028
• TOP CHOICE CONSTRUCTION SERVICE INC CLEAR
  License 1105149 · expires May 31, 2027
• TOP POINT CONSTRUCTION INC CLEAR
  License 1016784 · expires August 31, 2028
• TOUCHSTONE CONSTRUCTION DEVELOPMENT INC CLEAR
  License 938018 · expires September 30, 2027
• UNI CONSTRUCTION CLEAR
  License 1026926 · expires March 31, 2028
• UNICORN CONSTRUCTION CLEAR
  License 1042772 · expires August 31, 2028
• URBANEDGE CONSTRUCTION INC CLEAR
  License 1145858 · expires November 30, 2027
• V C CONSTRUCTION & DEVELOPMENT CLEAR
  License 959583 · expires April 30, 2027
• VANGUARD PLUMBING CLEAR
  License 1161936 · expires September 30, 2028
• VANTA CONSTRUCTION & DESIGN CLEAR
  License 1100647 · expires January 31, 2027
• VISION TREE EXPERTS INC CLEAR
  License 1004697 · expires June 30, 2027
• VIVILUXE CONSTRUCTION INC CLEAR
  License 1151920 · expires March 31, 2028
• WALNUT HOUSING TECH INC CLEAR
  License 1142816 · expires August 31, 2027
• WANG ZIYI CONSTRUCTION CLEAR
  License 1145455 · expires October 31, 2027
• WH ELECTRICAL CLEAR
  License 1147623 · expires December 31, 2027
• WKH CONSTRUCTION SERVICE INC CLEAR
  License 1136117 · expires March 31, 2028
• WZ HOME DESIGN INC Susp - No Qualifier
  License 1113443 · expires December 31, 2027
• XIAOQING CLEAR
  License 1113933 · expires December 31, 2027
• XIATING CHEN CLEAR
  License 1155347 · expires May 31, 2028
• XINLONGYUAN CONSTRUCTION INC CLEAR
  License 1118997 · expires April 30, 2028
• XPERTCOM SOLUTIONS INC CLEAR
  License 844669 · expires August 31, 2028
• YELLOWSTONE WORKX INC CLEAR
  License 1084592 · expires December 31, 2027
• YIN CONSTRUCTION ENTERPRISES LLC CLEAR
  License 1128987 · expires November 30, 2026

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