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
License #1113745
A, B +1 more
Ontario, CA
Est. 2023
Elgin Guerrero
Active
License #1113824
A
Ontario, CA
Est. 2023
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
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
License #1118751
B
Ontario, CA
Est. 2024
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
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
License #1122552
B, C-10 +2 more
Ontario, CA
Est. 2024
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