Licensed Contractors in Walnut, 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
Specialty Contractors
C-10: Electrical Contractor
(30)
C-20: Warm-Air Heating, Ventilating and Air-Conditioning (HVAC) Contractor
(26)
C-36: Plumbing Contractor
(20)
C-33: Painting and Decorating Contractor
(10)
C-7: Low Voltage Systems Contractor
(8)
C-27: Landscaping Contractor
(6)
C-39: Roofing Contractor
(5)
C-35: Lathing and Plastering Contractor
(5)
D28: Doors, Gates and Activating Devices
(5)
C-15: Flooring and Floor Covering Contractor
(4)
License #1024993
C-15
Walnut, CA
Est. 2017
Dc Ample Inc
Active
License #1025233
B
Walnut, CA
Est. 2017
James Ro & Associates Inc
Active
License #1025475
C-33
Walnut, CA
Est. 2017
License #1026917
B, C-10 +1 more
Walnut, CA
Est. 2017
Ab Construction Services
Active
License #1027083
B
Walnut, CA
Est. 2017
License #1029672
C-20
Walnut, CA
Est. 2017
License #1030038
A, C-10 +1 more
Walnut, CA
Est. 2017
License #1032091
A, B
Walnut, CA
Est. 2017
Gentry Vasquez Electric Inc
Active
License #1035047
C-10
Walnut, CA
Est. 2018
Kna Construction Inc
Active
License #1036481
B
Walnut, CA
Est. 2018
Scmj Construction Inc
Active
License #1038049
B
Walnut, CA
Est. 2018
License #1038280
B
Walnut, CA
Est. 2018
License #1038375
D63
Walnut, CA
Est. 2018
American Vector Inc
Active
License #1038463
B
Walnut, CA
Est. 2018
License #1040237
B
Walnut, CA
Est. 2018
License #1040416
A, C-42
Walnut, CA
Est. 2018
Top One (L.M.) Inc
Active
License #1042151
B
Walnut, CA
Est. 2018
Rrsw Construction Inc
Active
License #1045349
B
Walnut, CA
Est. 2018
Herui Construction
Active
License #1048427
B
Walnut, CA
Est. 2018
License #1049231
C-20
Walnut, CA
Est. 2019
Citisign
Active
License #1050442
C-45
Walnut, CA
Est. 2019
Zr Square Construction
Active
License #1050887
B
Walnut, CA
Est. 2019
Gofg Construction Inc
Active
License #1051182
B
Walnut, CA
Est. 2019
License #1051200
D62
Walnut, CA
Est. 2019
Maximum Mechanical Plumbing
Active
License #1051536
C-36
Walnut, CA
Est. 2019
Galactric Technology Co
Active
License #1052828
C-7
Walnut, CA
Est. 2019
Skyland Builders Inc
Active
License #1053627
B
Walnut, CA
Est. 2019
Air Caresaver Corp
Active
License #1054832
C-20
Walnut, CA
Est. 2019
Leon L Liao
Active
License #1059474
B
Walnut, CA
Est. 2019
King Young Investments Inc
Active
License #1059807
B
Walnut, CA
Est. 2019
Shnc Gc Inc
Active
License #1060327
A, B
Walnut, CA
Est. 2019
License #1060663
B
Walnut, CA
Est. 2019
Aplicano Construction Inc
Active
License #1060797
B
Walnut, CA
Est. 2019
License #1061258
B
Walnut, CA
Est. 2019
License #1061501
C-33
Walnut, CA
Est. 2019
Shalc Gc Inc
Active
License #1062050
A, B
Walnut, CA
Est. 2020
Concept Electric Inc
Active
License #1062738
C-10
Walnut, CA
Est. 2020
Alan Lung Wong
Active
License #1062950
B
Walnut, CA
Est. 2020
Shan Gao Electrical Services
Active
License #1066744
C-10
Walnut, CA
Est. 2020
Ustairs
Active
License #1067337
B, C-13
Walnut, CA
Est. 2020
Mengge Liu
Active
License #1067520
B
Walnut, CA
Est. 2020
License #1070346
B
Walnut, CA
Est. 2020
License #1072230
C-7
Walnut, CA
Est. 2020
Rockstone Plastering Inc
Active
License #1072373
B, C-33 +1 more
Walnut, CA
Est. 2020
Kenny Cai
Active
License #1075449
B
Walnut, CA
Est. 2021
Yusheng Song
Active
License #1076196
B
Walnut, CA
Est. 2021
Lz Comfort Home
Active
License #1081673
C-10, C-20
Walnut, CA
Est. 2021
Wonevista Construction
Active
License #1082394
B, C-6
Walnut, CA
Est. 2021
License #1082903
A, B
Walnut, CA
Est. 2021
Quinto Heating And Air
Active
License #1082953
C-20
Walnut, CA
Est. 2021