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)
Wright Wood Roofing Inc Active
License #1106726 C-39 Ontario, CA Est. 2023
Aboveground Solutions Inc Active
License #1106979 B Ontario, CA Est. 2023
Gatorwraps Inc Active
License #1107852 D52 Ontario, CA Est. 2023
Pac Builders Corp Active
License #1107900 B Ontario, CA Est. 2023
Method Design Build Active
License #1108931 B Ontario, CA Est. 2023
Cdn Construction Active
License #1109836 B Ontario, CA Est. 2023
Rovac Builder Active
License #1110101 B Ontario, CA Est. 2023
Tfr Communications Inc Active
License #1110215 C-7 Ontario, CA Est. 2023
West End Heating And Air Active
License #1110549 C-20 Ontario, CA Est. 2023
Hps Construction Active
License #1111105 B Ontario, CA Est. 2023
Vlp Design Build Active
License #1111387 B Ontario, CA Est. 2023
Mendoza Home Remodeling Active
License #1111722 B-2 Ontario, CA Est. 2023
Big Worm Water Well Drilling Active
License #1112675 C-57 Ontario, CA Est. 2023
Gc Construction & Fire Protection Inc Active
License #1113745 A, B +1 more Ontario, CA Est. 2023
Elgin Guerrero Active
License #1113824 A Ontario, CA Est. 2023
Rancho Construction Specialties Active
License #1113850 B Ontario, CA Est. 2023
American General Builders Active
License #1114159 B Ontario, CA Est. 2023
Villa General Contracting Active
License #1114540 B Ontario, CA Est. 2023
Cap Angeles Construction Inc Active
License #1115382 B Ontario, CA Est. 2024
Sm Waterworks Backflow Service Active
License #1115619 A, C-36 +1 more Ontario, CA Est. 2024
Haven King Construction Active
License #1115816 B Ontario, CA Est. 2024
Masonry Arena Active
License #1115861 C-29 Ontario, CA Est. 2024
Jml Electric Active
License #1116001 C-10 Ontario, CA Est. 2024
Adaptive Controls Services Active
License #1116142 C-20 Ontario, CA Est. 2024
Westside Pro Builders Active
License #1116368 B Ontario, CA Est. 2024
Thomas Mcgee Development Inc Active
License #1117295 B Ontario, CA Est. 2024
Bprecise Plastering Inc Active
License #1117375 C-35 Ontario, CA Est. 2024
Any Color You Like Paint Co Active
License #1117517 C-33 Ontario, CA Est. 2024
Raiden Electric Active
License #1118259 C-10 Ontario, CA Est. 2024
Golden West Construction Group Active
License #1118751 B Ontario, CA Est. 2024
Superior Fence & Rail Inland Empire Active
License #1118806 C-13 Ontario, CA Est. 2024
Ls Construction Active
License #1118857 B Ontario, CA Est. 2024
High Profile Synthetics Active
License #1119288 D12 Ontario, CA Est. 2024
Parking And Highway Improvement Active
License #1119638 C-32 Ontario, CA Est. 2024
Jimmy'S Tree Care Inc Active
License #1119821 D49 Ontario, CA Est. 2024
Enhanced Roofing Inc Active
License #1120148 B, C-39 Ontario, CA Est. 2024
Navona Construction Active
License #1120621 B Ontario, CA Est. 2024
Lucio'S Landscaping Inc Active
License #1120877 C-27 Ontario, CA Est. 2024
Pit Stop Service And Repair Active
License #1121177 D40 Ontario, CA Est. 2024
Urgent Septic Solutions Llc Active
License #1121506 C-42 Ontario, CA Est. 2024
Gabe'S General Construction Active
License #1122112 B Ontario, CA Est. 2024
Prs Industrial Inc Dba Prs Industrial Electrical & Construction Active
License #1122552 B, C-10 +2 more Ontario, CA Est. 2024
Skylinecraft Construction Inc Active
License #1122803 B Ontario, CA Est. 2024
J B S Stairs & Millwork Active
License #1123475 C-6 Ontario, CA Est. 2024
Escandon Construction Inc Active
License #1123673 B-2 Ontario, CA Est. 2024
Primary Landscape Inc Active
License #1123727 C-27 Ontario, CA Est. 2024
Aak Painting Services Active
License #1123755 C-33 Ontario, CA Est. 2024
Jmd Electric Active
License #1124274 C-10 Ontario, CA Est. 2024
Divine Pools Co Active
License #1124656 C-53 Ontario, CA Est. 2024
Midas Roofing Inc Active
License #1124814 C-39 Ontario, CA Est. 2024

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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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