Licensed Contractors in Walnut, California
All license data is sourced from the California Contractors State License Board (CSLB). Last data update: April 05, 2026.
Contractors by Trade
Building
(194)
Electrical
(41)
HVAC
(30)
Limited
(23)
Plumbing
(22)
Painting
(14)
Landscaping
(9)
Roofing
(8)
Fire
(6)
Earthwork
(5)
Solar
(4)
Welding
(3)
Yu Charles
Active
License #1141603
B
Walnut, CA
Est. 2025
Meijia Decoration Inc
Active
License #1143418
B
Walnut, CA
Est. 2025
Lifeng Si
Active
License #1143803
B
Walnut, CA
Est. 2025
Peacecal Plumbing
Active
License #1144632
C-36
Walnut, CA
Est. 2025
Hy Hvac Service
Active
License #1145147
C-20
Walnut, CA
Est. 2025
Panda Renovation Inc
Active
License #1145822
B
Walnut, CA
Est. 2025
Jianqing Zhang
Active
License #1146468
B
Walnut, CA
Est. 2025
Zhongmei Construction
Active
License #1146902
B
Walnut, CA
Est. 2025
License #1147132
A, B
Walnut, CA
Est. 2025
365 Solar Inc
Active
License #1150110
C-10
Walnut, CA
Est. 2026
Cleon Construction Inc
Active
License #1152984
B
Walnut, CA
Est. 2026
Certified Crane Services Inc
Suspended
License #450184
C-10
Walnut, CA
Est. 1983
Labco
Suspended
License #574675
A
Walnut, CA
Est. 1989
S K Contractors
Suspended
License #649611
B
Walnut, CA
Est. 1992
Genali Construction
Suspended
License #839857
B, C-35
Walnut, CA
Est. 2004
Allstar Heating & Air Conditioning Inc
Suspended
License #969939
C-20
Walnut, CA
Est. 2012
Access Doors
Suspended
License #984988
D28
Walnut, CA
Est. 2013
Steve'S Heating & Air Conditioning
Suspended
License #1029672
C-20
Walnut, CA
Est. 2017
License #1082903
A, B
Walnut, CA
Est. 2021
Jd Air
Suspended
License #1091749
C-20
Walnut, CA
Est. 2022
Ziming Concrete
Suspended
License #1097992
C-8
Walnut, CA
Est. 2022
License #1101763
B
Walnut, CA
Est. 2023
J & S Engineering Contractors Inc
Suspended
License #1120834
A
Walnut, 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