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)
New Home Design & Management Inc Dba New Home Design & Build Active
License #1125434 B Ontario, CA Est. 2024
R & G Stairs & Millwork Co Active
License #1125503 C-6 Ontario, CA Est. 2024
Abl Contracting Inc Active
License #1126537 B Ontario, CA Est. 2024
Crs Commercial Llc Active
License #1127275 C-39, C-43 Ontario, CA Est. 2024
Y&D General Services Active
License #1127476 B Ontario, CA Est. 2024
Scorpion Remodeling Consulting Dba United Water Restoration Active
License #1127537 B Ontario, CA Est. 2024
Bouchot Texture Inc Active
License #1127920 C-9 Ontario, CA Est. 2024
Pro Quality Fence Inc Active
License #1129274 C-13 Ontario, CA Est. 2024
West Coast Pipeline Specialist Active
License #1129511 A, C-10 +1 more Ontario, CA Est. 2024
Tridon 2 Contractors Active
License #1129917 B Ontario, CA Est. 2024
Shark General Building Inc Active
License #1130440 B Ontario, CA Est. 2024
Handle It Coatings Inc Active
License #1130459 D12 Ontario, CA Est. 2024
Ems Renovations Active
License #1130808 B-2 Ontario, CA Est. 2024
Cpl Construction Inc Active
License #1130846 B Ontario, CA Est. 2024
Santoyo Construction Active
License #1131018 B Ontario, CA Est. 2024
Heritage Design & Build Llc Active
License #1131358 B, C-10 Ontario, CA Est. 2025
Duo Cap Construction Inc Active
License #1131376 A, B Ontario, CA Est. 2025
Alfonso Gonzalez Jr Active
License #1132020 D40 Ontario, CA Est. 2025
Hdz Construction Inc Active
License #1132126 B Ontario, CA Est. 2025
Cbx Construction Inc Active
License #1132477 B, C-7 +1 more Ontario, CA Est. 2025
A G Heating & Air Active
License #1132532 C-20 Ontario, CA Est. 2025
Ds Hvac Inc Active
License #1132699 C-20 Ontario, CA Est. 2025
Mega Construction Llc Active
License #1132714 B Ontario, CA Est. 2025
Joe Landscape Active
License #1132759 C-27 Ontario, CA Est. 2025
Cj Construction Services Active
License #1132772 B Ontario, CA Est. 2025
Calpoint Construction Inc Active
License #1132890 B Ontario, CA Est. 2025
Mcq Construction Inc Active
License #1132913 B Ontario, CA Est. 2025
Michael Electric Active
License #1133177 C-10 Ontario, CA Est. 2025
Custom Brick & Block Masonry Active
License #1133393 C-29 Ontario, CA Est. 2025
Pisces Plumbing Active
License #1133446 C-36 Ontario, CA Est. 2025
Dvg Costruction Active
License #1133506 B Ontario, CA Est. 2025
Eg Landscaping Active
License #1133966 C-27 Ontario, CA Est. 2025
Salazar Electric Llc Active
License #1134142 C-10 Ontario, CA Est. 2025
Astera Kitchen And Bath Cabinets Active
License #1134637 C-6, C-17 Ontario, CA Est. 2025
Jcsv Builders Inc Active
License #1134819 B Ontario, CA Est. 2025
Pacific Edge Concrete Active
License #1135512 C-8 Ontario, CA Est. 2025
Apex Concrete Active
License #1135754 C-8 Ontario, CA Est. 2025
Evan Ibaldo Castillo Active
License #1135800 C-54 Ontario, CA Est. 2025
Nick Air Conditioning Inc Active
License #1135910 C-20 Ontario, CA Est. 2025
California Blaze Protection Llc Active
License #1135952 C-16 Ontario, CA Est. 2025
Brilliant Building Group Active
License #1136246 B Ontario, CA Est. 2025
Rise Above Landscape Inc Active
License #1136557 C-27 Ontario, CA Est. 2025
Rc Tree Care Active
License #1136616 C-49 Ontario, CA Est. 2025
Dylan'S Plumbing Group Inc Active
License #1136831 C-36 Ontario, CA Est. 2025
Cm Custom Paint And Stain Active
License #1137094 C-33 Ontario, CA Est. 2025
Wiskind Construction Inc Active
License #1137238 B Ontario, CA Est. 2025
Aj Claremont Structural Steel Fab Inc Active
License #1137486 C-51 Ontario, CA Est. 2025
Varez Construction Inc Active
License #1138147 B Ontario, CA Est. 2025
Fangwen Han Active
License #1138190 B Ontario, CA Est. 2025
Vargos Plumbing & Sewer Inc Active
License #1138500 C-36 Ontario, CA Est. 2025

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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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