Licensed Contractors in Ontario, California
All license data is sourced from the California Contractors State License Board (CSLB). Last data update: February 20, 2026.
Contractors by Classification
General Contractors
B: General Building Contractor
(341)
A: General Engineering Contractor
(63)
B-2: Residential Remodeling Contractor
(4)
Specialty Contractors
C-10: Electrical Contractor
(128)
C-33: Painting and Decorating Contractor
(54)
C-36: Plumbing Contractor
(49)
C-20: Warm-Air Heating, Ventilating and Air-Conditioning (HVAC) Contractor
(46)
C-7: Low Voltage Systems Contractor
(37)
C-27: Landscaping Contractor
(34)
C-8: Concrete Contractor
(29)
C-15: Flooring and Floor Covering Contractor
(29)
C-39: Roofing Contractor
(26)
D28: Doors, Gates and Activating Devices
(22)
Nichols Electric
Active
License #800384
C-10
Ontario, CA
Est. 2001
T K Systems Inc Dba A M F I
Active
License #800845
D21, D24
Ontario, CA
Est. 2001
Premium Floor Covering Inc
Active
License #802401
C-15
Ontario, CA
Est. 2001
Hdc Construction Inc
Active
License #802646
B, C-9 +1 more
Ontario, CA
Est. 2002
License #804121
C-10
Ontario, CA
Est. 2002
Riggio Construction Inc
Active
License #806241
B
Ontario, CA
Est. 2002
Eric Hurford Construction
Active
License #806297
B
Ontario, CA
Est. 2002
A I C Interior Inc
Active
License #806562
B
Ontario, CA
Est. 2002
A T S Construction
Active
License #807837
B
Ontario, CA
Est. 2002
License #808571
B
Ontario, CA
Est. 2002
Top Of The Line Roofing
Active
License #810795
C-39
Ontario, CA
Est. 2002
So-Cal Showerdoors
Active
License #812487
C-17
Ontario, CA
Est. 2002
License #814328
B, C-10 +2 more
Ontario, CA
Est. 2002
Blue Haven Pools
Active
License #816057
B, C-53
Ontario, CA
Est. 2002
Grace Rooter And Plumbing
Active
License #817808
C-36
Ontario, CA
Est. 2003
Sweet Water Landscaping
Active
License #817917
C-27, C-36
Ontario, CA
Est. 2003
Hhs Construction Llc
Active
License #818906
A, B +3 more
Ontario, CA
Est. 2003
E B A Glassworks
Active
License #821501
C-17
Ontario, CA
Est. 2003
Nick Leo Figueroa
Active
License #824166
B
Ontario, CA
Est. 2003
Custom Carpentry
Active
License #826799
B
Ontario, CA
Est. 2003
Envirokinetics Inc
Active
License #828248
A
Ontario, CA
Est. 2003
Alexandru Lapos
Active
License #828822
C-6
Ontario, CA
Est. 2003
Rico Inc
Active
License #831227
B, C-33
Ontario, CA
Est. 2004
Draper Properties
Active
License #833028
B
Ontario, CA
Est. 2004
License #836616
C-39
Ontario, CA
Est. 2004
Roadfix Inc
Active
License #840367
C-32
Ontario, CA
Est. 2004
New View Auto Glass Inc
Active
License #840405
C-17
Ontario, CA
Est. 2004
Elements Of Style
Active
License #841955
C-6
Ontario, CA
Est. 2004
Advance Construction
Active
License #842289
B
Ontario, CA
Est. 2004
Life Builders
Active
License #842842
B
Ontario, CA
Est. 2004
License #843628
C-9
Ontario, CA
Est. 2004
Julio Antonio Castillo
Active
License #844311
C-10, C-20
Ontario, CA
Est. 2004
License #844467
C-33
Ontario, CA
Est. 2004
License #845651
C-36
Ontario, CA
Est. 2004
License #847499
A, C-7
Ontario, CA
Est. 2004
License #848705
B
Ontario, CA
Est. 2004
Brandon Fisher Construction
Active
License #848840
B
Ontario, CA
Est. 2004
Flores Building
Active
License #850742
B
Ontario, CA
Est. 2004
Villalobos Glass Co Inc
Active
License #851274
C-17
Ontario, CA
Est. 2004
West Coast Plumbing
Active
License #853144
C-36
Ontario, CA
Est. 2005
Myco Construction
Active
License #853581
B, C-17 +4 more
Ontario, CA
Est. 2005
License #856385
C-10
Ontario, CA
Est. 2005
Zeven Electric
Active
License #856544
C-10
Ontario, CA
Est. 2005
Eliseo Miramontez
Active
License #857173
B, C-6
Ontario, CA
Est. 2005
Affordable Services
Active
License #857640
C-21, D06 +2 more
Ontario, CA
Est. 2005
Luis M Cardenas
Active
License #857846
C-29
Ontario, CA
Est. 2005
Caliber Drywall
Active
License #858112
C-9
Ontario, CA
Est. 2005
Flow Dynamics Inc
Active
License #858166
C-36
Ontario, CA
Est. 2005
License #858888
A, B +1 more
Ontario, CA
Est. 2005
Jose Salas
Active
License #859777
C-33
Ontario, CA
Est. 2005