Licensed Contractors in Ontario, California

All license data is sourced from the California Contractors State License Board (CSLB). Last data update: April 05, 2026.

Contractors by Trade

Building (456)
Electrical (166)
Limited (119)
Painting (108)
HVAC (63)
Roofing (63)
Plumbing (61)
Earthwork (55)
Landscaping (49)
Welding (30)
Fire (28)
Solar (3)
Baumann Waterworks Active
License #1020247 C-36 Ontario, CA Est. 2016
Barnes Fiber Communications Active
License #1020360 C-7 Ontario, CA Est. 2016
Pristine Painting & Decor Inc Active
License #1020730 C-33 Ontario, CA Est. 2016
Mustang Construction Active
License #1020934 B Ontario, CA Est. 2016
Signarama Ontario Active
License #1020966 D42 Ontario, CA Est. 2016
Kisba Contracting Inc Active
License #1021128 B Ontario, CA Est. 2016
Project Countertops Company Inc Active
License #1021347 B, C-54 Ontario, CA Est. 2016
G S L Industries Inc Dba G & L Cabinets Active
License #1021350 C-6 Ontario, CA Est. 2016
Ruvico Inc Active
License #1021363 C-36 Ontario, CA Est. 2016
Robert Alan Construction Inc Active
License #1022004 A, C-8 Ontario, CA Est. 2016
Leothacue Enterprises Inc Active
License #1025024 A, B Ontario, CA Est. 2017
Tlkd Corp Dba Tru Glazing Company Active
License #1025812 C-17 Ontario, CA Est. 2017
J D Mac Inc Active
License #1026767 C-13 Ontario, CA Est. 2017
Canseco Electrical Contracting Incorporated Active
License #1027087 C-10 Ontario, CA Est. 2017
Jvr Enterprises Inc Active
License #1027158 C-6 Ontario, CA Est. 2017
Earthscapes Active
License #1027517 A, C-27 Ontario, CA Est. 2017
Luis Drywall Active
License #1027740 C-9 Ontario, CA Est. 2017
Gibin Remodeling Inc Active
License #1027816 B, C-6 +1 more Ontario, CA Est. 2017
Elegance Millwork Active
License #1028332 C-6 Ontario, CA Est. 2017
High Ridge Construction Inc Active
License #1028395 B, C-33 Ontario, CA Est. 2017
New Alliance Framing Active
License #1028481 C-5 Ontario, CA Est. 2017
Trait Construction Active
License #1028664 B Ontario, CA Est. 2017
Titan Demolition Inc Active
License #1029307 C-21 Ontario, CA Est. 2017
Elite Door Installations Active
License #1029347 D28 Ontario, CA Est. 2017
J P Addison Construction Inc Active
License #1029562 B Ontario, CA Est. 2017
Sheppard'S Coatings Active
License #1030011 C-33 Ontario, CA Est. 2017
Trinity Framing Active
License #1030427 B Ontario, CA Est. 2017
In And Out Plumbing Active
License #1030564 C-36 Ontario, CA Est. 2017
Hs Contractors Inc Active
License #1031026 B Ontario, CA Est. 2017
Upland Pool & Electric Active
License #1031031 C-10, C-20 +1 more Ontario, CA Est. 2017
Matlock Design Build Inc Active
License #1031038 B Ontario, CA Est. 2017
Privado Landscape Active
License #1031219 C-27 Ontario, CA Est. 2017
K&D Landscape Inc Active
License #1032430 C-27 Ontario, CA Est. 2017
Anda Active
License #1032575 B Ontario, CA Est. 2017
Choice Builder Solutions Llc Active
License #1032593 A, B Ontario, CA Est. 2017
Premium Construction Services Active
License #1033803 B Ontario, CA Est. 2017
Mehdi Jaber Active
License #1034053 A Ontario, CA Est. 2017
California Street Lighting Active
License #1034194 C-10 Ontario, CA Est. 2017
Puente Electric Active
License #1034295 C-10 Ontario, CA Est. 2017
Advanced Monitoring Inc Active
License #1035016 C-7, C-10 Ontario, CA Est. 2018
Jason Jang Active
License #1035039 C-20 Ontario, CA Est. 2018
R D K Electric Active
License #1035387 C-10 Ontario, CA Est. 2018
Foxtrot Construction Active
License #1035680 A, B +3 more Ontario, CA Est. 2018
Tyco Wallcovering Llc Active
License #1037016 D29 Ontario, CA Est. 2018
Bear Paw Landscape Active
License #1037030 C-27, C-53 Ontario, CA Est. 2018
Pro Kitchen Cabinets Active
License #1037074 C-6 Ontario, CA Est. 2018
B3D Electric Active
License #1037130 C-10 Ontario, CA Est. 2018
Resource One Low Voltage Security Inc Active
License #1037327 C-7 Ontario, CA Est. 2018
Arena Construction Cleanup Active
License #1037475 D63 Ontario, CA Est. 2018
Legend Construction Services Inc Active
License #1038753 B, C-8 +1 more Ontario, CA Est. 2018

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Licensing Resources

How to verify a contractor license
Deposit and payment rules for California contracts
Home improvement contract requirements

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