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)
Melendez Tree Service Active
License #1073751 D49 Ontario, CA Est. 2021
Devine Looks Home Design & Construction Active
License #1074899 B Ontario, CA Est. 2021
J M W Communications Inc Active
License #1074991 C-7 Ontario, CA Est. 2021
All Coast Epoxy Llc Active
License #1075287 C-15 Ontario, CA Est. 2021
Copperhead Electric Active
License #1075400 C-10 Ontario, CA Est. 2021
Tekton Elite Llc Active
License #1075800 C-6 Ontario, CA Est. 2021
Prime Renovate Inc Active
License #1076129 B, C-27 Ontario, CA Est. 2021
Cai Fall Protection Systems Active
License #1077144 A Ontario, CA Est. 2021
Lvl Construction Inc Active
License #1077369 B Ontario, CA Est. 2021
Pbs Construction Service Llc Active
License #1077808 B Ontario, CA Est. 2021
Raze Demolition Services Active
License #1078123 C-21 Ontario, CA Est. 2021
Mcintyre Metal Decking Active
License #1078212 C-51 Ontario, CA Est. 2021
Je Home Construction Active
License #1078677 B Ontario, CA Est. 2021
Linx Construction Inc Active
License #1079357 B Ontario, CA Est. 2021
Eastvale Landscaping Inc Dba Eastvale Concrete Active
License #1080040 C-53 Ontario, CA Est. 2021
Danco Tile Works Active
License #1080107 C-54 Ontario, CA Est. 2021
Freedom 21 Contractors Inc Active
License #1080326 B Ontario, CA Est. 2021
Luisa Margarita Jimenez Herrera Active
License #1080360 C-51 Ontario, CA Est. 2021
Blueline Pool Construction Active
License #1080691 C-53 Ontario, CA Est. 2021
Jnsd Construction Inc Active
License #1080741 B, C-10 +2 more Ontario, CA Est. 2021
Electrical Best Services Inc Active
License #1081235 C-10 Ontario, CA Est. 2021
Omega Doors Corp Active
License #1081341 D28 Ontario, CA Est. 2021
Goodfellas Electric Inc Active
License #1081537 C-10 Ontario, CA Est. 2021
Cmd Electric Inc Active
License #1081762 C-10 Ontario, CA Est. 2021
Provision Contracting Llc Active
License #1082407 B Ontario, CA Est. 2021
Solgar Construction Inc Active
License #1082852 B Ontario, CA Est. 2021
Aces Construction Active
License #1083500 B Ontario, CA Est. 2021
Julan Hao Active
License #1083815 C-20 Ontario, CA Est. 2021
O&A Custom Window Fashions Inc Active
License #1083893 D52 Ontario, CA Est. 2021
Best Choice Building & Developing Active
License #1084808 B Ontario, CA Est. 2021
Jod Dominguez Active
License #1084844 B Ontario, CA Est. 2021
J 1 Pro Roofing Active
License #1084959 C-39 Ontario, CA Est. 2021
Kyle Yang Construction Active
License #1085591 B Ontario, CA Est. 2022
Q A T General Construction Active
License #1085728 B Ontario, CA Est. 2022
American Stainless Active
License #1085845 C-43, D12 +2 more Ontario, CA Est. 2022
Arc Electrical Contractors Inc Active
License #1085957 C-10 Ontario, CA Est. 2022
Clearview Pools Inc Active
License #1086141 C-53 Ontario, CA Est. 2022
Trinity Electrical Active
License #1086414 C-10 Ontario, CA Est. 2022
Kennedy Steel Active
License #1086611 C-51 Ontario, CA Est. 2022
Arco Glass Plus Inc Active
License #1087211 C-9, C-17 Ontario, CA Est. 2022
Pi Wallcovering Active
License #1087250 D29 Ontario, CA Est. 2022
Groundbreaking Design Building Active
License #1087605 B Ontario, CA Est. 2022
Artisan Construction Active
License #1087835 B Ontario, CA Est. 2022
Allwayss Active
License #1088428 A Ontario, CA Est. 2022
Next Level Contractors Inc Active
License #1088668 B Ontario, CA Est. 2022
Skyline Services Llc Active
License #1088918 B Ontario, CA Est. 2022
Intumescent And Synthetic Specialty Contractor Active
License #1089652 D12 Ontario, CA Est. 2022
Painters Nation Active
License #1089808 C-33 Ontario, CA Est. 2022
Next Generation Floor Covering Active
License #1089919 C-15, D06 +1 more Ontario, CA Est. 2022
Caltek Technologies Active
License #1090616 C-7 Ontario, CA Est. 2022

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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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