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)
L D M Construction Services Active
License #957993 B, D34 Ontario, CA Est. 2011
Super Mario Construction Active
License #958569 B Ontario, CA Est. 2011
Timothy S Matlack Active
License #958791 C-10 Ontario, CA Est. 2011
Ernesto Barberi Active
License #959795 B Ontario, CA Est. 2011
Marlu Construction Active
License #960949 A, B +1 more Ontario, CA Est. 2011
C B Home Construction Active
License #961219 B Ontario, CA Est. 2011
Rynoclad Technologies Inc Active
License #963208 C-17 Ontario, CA Est. 2011
Ontario Wholesale Carpet Active
License #964076 C-15 Ontario, CA Est. 2011
Kingdom Flooring Active
License #964588 C-15 Ontario, CA Est. 2011
Maldonado Industries Active
License #964663 C-51, C-60 Ontario, CA Est. 2011
Jfp Construction Company Inc Active
License #965462 B Ontario, CA Est. 2011
D & D Contractors Inc Active
License #966076 B Ontario, CA Est. 2011
Property Builders Concepts & Maintenance Inc Active
License #967277 B Ontario, CA Est. 2011
Safford Plumbing Active
License #968088 C-36 Ontario, CA Est. 2011
Danny O'Dell Floor Covering Active
License #969366 C-15 Ontario, CA Est. 2012
A - Industrial Design / Build Active
License #969373 B Ontario, CA Est. 2012
Steel Design Builders Inc Active
License #969622 C-51 Ontario, CA Est. 2012
D S S Active
License #970275 C-7 Ontario, CA Est. 2012
Jimmy A General Construction Inc Active
License #971256 B Ontario, CA Est. 2012
Ontarios Landscape Inc Active
License #972069 C-27 Ontario, CA Est. 2012
Spec Construction & Development Inc Active
License #972188 B Ontario, CA Est. 2012
Honey Badger Engineers Active
License #972415 A, B Ontario, CA Est. 2012
Constru One Inc Active
License #972427 A, B Ontario, CA Est. 2012
Steve Hong Active
License #972839 B Ontario, CA Est. 2012
J S C Gardens & Landscape Active
License #973284 C-27 Ontario, CA Est. 2012
Prefab Granite & Tile Depot Inc Active
License #975056 B, C-54 Ontario, CA Est. 2012
Soriano Glass Active
License #975374 C-17 Ontario, CA Est. 2012
Das Commerical Openings Inc Active
License #975798 D28 Ontario, CA Est. 2012
Wh Jewett Inc Active
License #975875 B, C-8 Ontario, CA Est. 2012
Cali Construction Active
License #976265 B-2, C-15 Ontario, CA Est. 2012
Fixd Construction Company Active
License #976763 B Ontario, CA Est. 2012
Alpha Omega Plumbing Active
License #977823 C-36 Ontario, CA Est. 2012
Eye On Builders Active
License #977924 B, C-27 Ontario, CA Est. 2012
Foothill Heating & Air Conditioning Active
License #979917 C-20 Ontario, CA Est. 2013
Jake Sandoval Dba Clearwater Plumbing & Construction Active
License #980596 B, C-36 Ontario, CA Est. 2013
Forte Painters And General Construction Active
License #980663 B, C-33 +1 more Ontario, CA Est. 2013
G V C O Construction Inc Active
License #980998 A, D12 Ontario, CA Est. 2013
Turbine Repair Services Llc Active
License #981674 A, C-10 Ontario, CA Est. 2013
Victor Orozco Construction Active
License #982481 B Ontario, CA Est. 2013
Kp Builders Active
License #983861 B, C-51 Ontario, CA Est. 2013
Forrest Glass & Door Active
License #984938 C-17, D28 Ontario, CA Est. 2013
Prime Construction Services Inc Active
License #985031 B Ontario, CA Est. 2013
Fh Ii Homebuilders Inc Active
License #985046 B Ontario, CA Est. 2013
Jose Luis Palacios Active
License #986197 C-36 Ontario, CA Est. 2013
Lighthouse Construction & Remodel Active
License #986212 B Ontario, CA Est. 2013
Fresno Shower Door Inc Active
License #986239 C-17, D24 +1 more Ontario, CA Est. 2013
Cova Construction Inc Active
License #986355 C-13 Ontario, CA Est. 2013
Designer Works Active
License #986451 B, C-23 +1 more Ontario, CA Est. 2013
Technicool Refrigeration Active
License #987769 C-20, C-38 Ontario, CA Est. 2013
The Amgraph Group Active
License #988430 D42 Ontario, CA Est. 2013

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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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