Licensed Contractors in Walnut Creek, California
Walnut Creek has 589 licensed contractors registered with the California Contractors State License Board across 49 trade classifications. The most common specialties are Electrical Contractor (56), Painting and Decorating Contractor (39), Plumbing Contractor (33). 394 contractors hold general contractor licenses (Class A or B).
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
(354)
A: General Engineering Contractor
(36)
B-2: Residential Remodeling Contractor
(4)
Specialty Contractors
C-10: Electrical Contractor
(56)
C-33: Painting and Decorating Contractor
(39)
C-36: Plumbing Contractor
(33)
C-27: Landscaping Contractor
(32)
C-39: Roofing Contractor
(21)
C-20: Warm-Air Heating, Ventilating and Air-Conditioning (HVAC) Contractor
(14)
C-15: Flooring and Floor Covering Contractor
(13)
D35: Pool and Spa Maintenance
(11)
C-8: Concrete Contractor
(11)
C-53: Swimming Pool Contractor
(10)
W E Lyons Construction Co
Active
License #180607
A, B
Walnut Creek, CA
Est. 1959
Strand Builders
Active
License #221887
B
Walnut Creek, CA
Est. 1963
License #256942
C-27
Walnut Creek, CA
Est. 1969
Mka Constructors Inc
Active
License #262916
B
Walnut Creek, CA
Est. 1970
Robert Brosamer
Active
License #267780
A, HAZ
Walnut Creek, CA
Est. 1971
Thomas Albert Seeno
Active
License #281272
A, B
Walnut Creek, CA
Est. 1973
Busch Electric Inc
Active
License #290199
C-10
Walnut Creek, CA
Est. 1974
Maida Construction Company
Active
License #293985
B
Walnut Creek, CA
Est. 1974
Neumann Construction Co
Active
License #300599
B
Walnut Creek, CA
Est. 1974
Woznak Construction
Active
License #305875
B
Walnut Creek, CA
Est. 1975
Mike Williams Plumbing
Active
License #311842
C-36
Walnut Creek, CA
Est. 1975
License #319036
B, C-10 +2 more
Walnut Creek, CA
Est. 1976
G E T Electric
Active
License #367187
C-10
Walnut Creek, CA
Est. 1978
Brunswig Electric Co
Active
License #368497
C-10
Walnut Creek, CA
Est. 1979
Michael H Day Const Co
Active
License #376422
B
Walnut Creek, CA
Est. 1979
Mackay Enterprises Ltd
Active
License #380087
B
Walnut Creek, CA
Est. 1979
Denalect Inc
Active
License #382961
C-7, C-10
Walnut Creek, CA
Est. 1979
Achelis Construction Company
Active
License #391207
B
Walnut Creek, CA
Est. 1980
Steven C Black
Active
License #398292
B
Walnut Creek, CA
Est. 1981
License #406446
B, C-10 +2 more
Walnut Creek, CA
Est. 1981
Charles A Wall
Active
License #412142
A, B
Walnut Creek, CA
Est. 1981
M D Two
Active
License #414801
B
Walnut Creek, CA
Est. 1981
All Wall Company
Active
License #417997
B
Walnut Creek, CA
Est. 1982
M G Farrell Co
Active
License #421460
C-10, C-33
Walnut Creek, CA
Est. 1982
Robert Gardner Company
Active
License #421896
B
Walnut Creek, CA
Est. 1982
License #426650
B
Walnut Creek, CA
Est. 1982
H G L Construction
Active
License #435571
B
Walnut Creek, CA
Est. 1983
Curt Riess Construction
Active
License #436663
B
Walnut Creek, CA
Est. 1983
Western Construction
Active
License #437259
B, C-13 +1 more
Walnut Creek, CA
Est. 1983
License #437886
B
Walnut Creek, CA
Est. 1983
Lon B Williams
Active
License #437820
B
Walnut Creek, CA
Est. 1983
Brown And Caldwell
Active
License #445796
A
Walnut Creek, CA
Est. 1983
Crinnion Construction Inc
Active
License #448999
B
Walnut Creek, CA
Est. 1983
Terra Nova Industries
Active
License #460854
B
Walnut Creek, CA
Est. 1984
Gordon Reese Design Build
Active
License #463153
B
Walnut Creek, CA
Est. 1984
M E M Engineering
Active
License #463645
A
Walnut Creek, CA
Est. 1984
License #466413
B
Walnut Creek, CA
Est. 1984
License #467076
C-27
Walnut Creek, CA
Est. 1984
Chris D Soukoulis Dba Cds
Active
License #471084
B
Walnut Creek, CA
Est. 1985
License #478268
B
Walnut Creek, CA
Est. 1985
M I C Electric Inc
Active
License #479517
C-10
Walnut Creek, CA
Est. 1985
J S Kendall Construction Inc
Active
License #489031
B
Walnut Creek, CA
Est. 1986
Mary A Ramos
Active
License #492317
A, HAZ
Walnut Creek, CA
Est. 1986
Alder Pool & Landscape Co
Active
License #492439
C-27, C-53
Walnut Creek, CA
Est. 1986
Comtech Electric
Active
License #495622
C-10
Walnut Creek, CA
Est. 1986
License #500006
C-27
Walnut Creek, CA
Est. 1986
J F Nickels Construction
Active
License #501712
B
Walnut Creek, CA
Est. 1986
Adam Gonzales - Builder
Active
License #506507
B
Walnut Creek, CA
Est. 1987
License #508892
C-27
Walnut Creek, CA
Est. 1987
Diablo Rooter
Active
License #510112
C-36
Walnut Creek, CA
Est. 1987