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California Contractor Lookup

Licensed contractors in Ontario, CA

879 active contractor licenses list Ontario in San Bernardino County as their address, and 39 more are suspended. Pick a trade, or search by name.

By trade

B General building327 active C-10 Electrical133 active A General engineering59 active C-36 Plumbing50 active C-33 Painting and decorating50 active C-20 HVAC contractor (warm-air heating, ventilating and air conditioning)50 active C-7 Low voltage systems35 active C-27 Landscaping33 active C-15 Flooring and floor covering28 active C-8 Concrete28 active C-39 Roofing26 active C-61/D-28 Limited specialty: doors, gates and activating devices22 active C-17 Glazing21 active C-6 Cabinet, millwork and finish carpentry20 active C-9 Drywall19 active C-54 Ceramic and mosaic tile17 active C-53 Swimming pool17 active C-61/D-12 Limited specialty: synthetic products16 active C-29 Masonry14 active C-16 Fire protection13 active C-51 Structural steel12 active C-61/D-35 Limited specialty: pool and spa maintenance11 active C-38 Refrigeration11 active C-21 Building moving and demolition11 active C-61/D-34 Limited specialty: prefabricated equipment9 active C-35 Lathing and plastering9 active C-61/D-52 Limited specialty: window coverings8 active C-42 Sanitation system8 active C-12 Earthwork and paving8 active C-61/D-24 Limited specialty: metal products7 active C-61/D-21 Limited specialty: machinery and pumps7 active C-61/D-6 Limited specialty: concrete related services7 active C-50 Reinforcing steel7 active C-45 Sign7 active C-32 Parking and highway improvement7 active HAZ Hazardous substance removal certification6 active C-61/D-40 Limited specialty: service station equipment and maintenance5 active C-60 Welding5 active C-43 Sheet metal5 active C-23 Ornamental metal5 active C-13 Fencing5 active C-61/D-63 Limited specialty: construction clean-up4 active C-61/D-49 Limited specialty: tree service4 active C-61/D-64 Limited specialty: non-specialized3 active C-61/D-42 Limited specialty: non-electrical sign installation3 active C-49 Tree and palm3 active C-46 Solar3 active C-5 Framing and rough carpentry3 active ASB Asbestos certification3 active C-61/D-29 Limited specialty: paperhanging2 active C-61/D-3 Limited specialty: awnings2 active C-34 Pipeline2 active C-31 Construction zone traffic control2 active C-22 Asbestos abatement2 active C-4 Boiler, hot water heating and steam fitting2 active C-2 Insulation and acoustical2 active B-2 Residential remodeling2 active C-61/D-50 Limited specialty: suspended ceilings1 active C-61/D-41 Limited specialty: siding and decking1 active C-61/D-39 Limited specialty: scaffolding1 active C-61/D-37 Limited specialty: safes and vaults1 active C-61/D-16 Limited specialty: hardware, locks and safes1 active C-47 General manufactured housing1 active C-28 Lock and security equipment1 active

Suspended licenses in Ontario

Most recently updated first. Why licenses get suspended.