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)
Bella Geo Construction Inc Active
License #1090836 B, C-27 +1 more Ontario, CA Est. 2022
Moe'S Concrete Active
License #1090844 C-8 Ontario, CA Est. 2022
The Brush Whisperer Custom Decorative Painting Active
License #1090901 C-33 Ontario, CA Est. 2022
Excellent Blinds And Shutters Active
License #1091207 D52 Ontario, CA Est. 2022
X Y Sunshine International Inc Active
License #1091751 B Ontario, CA Est. 2022
Red & Purple Inc Active
License #1092661 B Ontario, CA Est. 2022
Dessa Electric Company Active
License #1093380 C-10 Ontario, CA Est. 2022
G A Drywall Inc Active
License #1093558 C-9 Ontario, CA Est. 2022
Jb Power Dba Generator Supercenter Of Inland Empire Active
License #1093940 C-10 Ontario, CA Est. 2022
Big O Flooring Inc Active
License #1093946 C-15, D12 Ontario, CA Est. 2022
Jr Landscaping Active
License #1094350 C-27 Ontario, CA Est. 2022
Nava Drywall Active
License #1095014 C-9 Ontario, CA Est. 2022
Seeburger & Sons Roofing Inc Active
License #1095076 C-39 Ontario, CA Est. 2022
Mardona Shenouda Construction Builder Active
License #1095276 B Ontario, CA Est. 2022
Y4M Developing Inc Dba Construction Masters Active
License #1095324 B Ontario, CA Est. 2022
California Complete Asphalt Services Active
License #1095474 A Ontario, CA Est. 2022
Moreno'S Construction Inc Active
License #1095952 B Ontario, CA Est. 2022
Wv Painting Active
License #1096134 C-33 Ontario, CA Est. 2022
Cruz Custom Woodworks Inc Active
License #1096485 C-6 Ontario, CA Est. 2022
Gabriel Ortiz Active
License #1097265 C-12, C-21 Ontario, CA Est. 2022
Kor Glass And Door Active
License #1097600 C-17, D28 Ontario, CA Est. 2022
Material Flow Systems Llc Active
License #1098116 D21 Ontario, CA Est. 2022
Hidalgo'S Roofing Active
License #1098311 C-39 Ontario, CA Est. 2022
Yicun Construction Active
License #1098350 B Ontario, CA Est. 2022
Ultimate Construction Active
License #1098701 B Ontario, CA Est. 2022
Lozano Marble Granite & Tile Active
License #1099858 C-54 Ontario, CA Est. 2022
Control Systems Active
License #1099963 B, C-10 Ontario, CA Est. 2022
Rf Drywall Inc Active
License #1101152 C-9 Ontario, CA Est. 2023
Og Plastering Inc Active
License #1101323 C-35 Ontario, CA Est. 2023
Leo Hao Liu Active
License #1101645 B Ontario, CA Est. 2023
Perception Painting Co Active
License #1101678 C-33 Ontario, CA Est. 2023
Dave Johnson Painting Active
License #1101831 C-33 Ontario, CA Est. 2023
Lujano Electric Active
License #1102594 C-10 Ontario, CA Est. 2023
High Caliber Dock And Doors Active
License #1102785 D28 Ontario, CA Est. 2023
Phillip Park Active
License #1102884 C-20 Ontario, CA Est. 2023
Martin Remodeling Active
License #1103295 B-2 Ontario, CA Est. 2023
Stanger Construction And Remodel Active
License #1103331 B Ontario, CA Est. 2023
Vrv Roofing Inc Active
License #1103520 C-39 Ontario, CA Est. 2023
All Pro Cooling Heating Plumbing & Electrical Active
License #1103983 C-10, C-20 +1 more Ontario, CA Est. 2023
Gr Quality Drywall Active
License #1104447 C-9 Ontario, CA Est. 2023
Pro Racking Systems Corp Active
License #1104460 D24 Ontario, CA Est. 2023
All Finish Coating Inc Active
License #1104874 C-33 Ontario, CA Est. 2023
Macias Gardening And Design Active
License #1104990 C-27 Ontario, CA Est. 2023
Singularity Construction Inc Active
License #1105261 B Ontario, CA Est. 2023
West Coast Current Active
License #1105587 C-10 Ontario, CA Est. 2023
Elias Plumbing Active
License #1105933 C-36 Ontario, CA Est. 2023
Project X Developer Inc Active
License #1106298 B Ontario, CA Est. 2023
Blue Whale Pool & Spa Remodeling Active
License #1106320 C-53 Ontario, CA Est. 2023
Galaxy Tile & Stone Inc Active
License #1106613 C-54 Ontario, CA Est. 2023
Hydrogen Construction Active
License #1106675 B Ontario, CA Est. 2023

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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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