Licensed Contractors in Sonoma, 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
(159)
A: General Engineering Contractor
(21)
B-2: Residential Remodeling Contractor
(1)
Specialty Contractors
C-10: Electrical Contractor
(42)
C-27: Landscaping Contractor
(35)
C-33: Painting and Decorating Contractor
(23)
C-36: Plumbing Contractor
(23)
C-20: Warm-Air Heating, Ventilating and Air-Conditioning (HVAC) Contractor
(12)
D52: Window Coverings
(8)
C-16: Fire Protection Contractor
(7)
C-35: Lathing and Plastering Contractor
(6)
C-15: Flooring and Floor Covering Contractor
(6)
D49: Tree Service
(5)
Hoh Builders
Active
License #587755
B
Sonoma, CA
Est. 1990
Stephen Kardum Painting
Active
License #599749
C-33
Sonoma, CA
Est. 1990
License #615048
B, C-16
Sonoma, CA
Est. 1991
Shelter Construction Inc
Active
License #625515
B
Sonoma, CA
Est. 1991
North Counties Drywall Inc
Active
License #630523
B, C-2 +2 more
Sonoma, CA
Est. 1991
Lm Jones Electric Inc
Active
License #638441
B, C-10
Sonoma, CA
Est. 1992
Oak Street Refrigeration Inc
Active
License #640199
C-10, C-38
Sonoma, CA
Est. 1992
License #640983
C-33
Sonoma, CA
Est. 1992
Murray Building Inc
Active
License #646709
A, B
Sonoma, CA
Est. 1992
Paul Rice Concrete Artisan
Active
License #650553
D06
Sonoma, CA
Est. 1992
Mak Engineering Inc
Active
License #651533
A
Sonoma, CA
Est. 1992
Boden Plumbing Inc
Active
License #659920
C-20, C-36
Sonoma, CA
Est. 1992
R A Wilson Construction
Active
License #665636
B
Sonoma, CA
Est. 1993
Wolf Electric Inc
Active
License #667202
C-10
Sonoma, CA
Est. 1993
License #668068
C-27
Sonoma, CA
Est. 1993
Quality Plastering
Active
License #670468
C-35
Sonoma, CA
Est. 1993
Rockridge Construction
Active
License #671287
B
Sonoma, CA
Est. 1993
Heritage Construction
Active
License #678343
B
Sonoma, CA
Est. 1993
License #679723
D52
Sonoma, CA
Est. 1993
Ecco Insulation Inc
Active
License #682377
C-2
Sonoma, CA
Est. 1993
Stanley Nicholas Grgich
Active
License #686550
B
Sonoma, CA
Est. 1994
License #688688
C-54
Sonoma, CA
Est. 1994
Griffiths Construction
Active
License #692856
A, C-10
Sonoma, CA
Est. 1994
Con Mara Gardens Inc
Active
License #694439
B, C-27
Sonoma, CA
Est. 1994
Boldt Electric Company
Active
License #696077
C-10
Sonoma, CA
Est. 1994
N M P Design
Active
License #702759
B, C-33
Sonoma, CA
Est. 1995
License #703747
C-6
Sonoma, CA
Est. 1995
License #711814
C-33
Sonoma, CA
Est. 1995
Thomas Anderson & Co
Active
License #715281
A, B
Sonoma, CA
Est. 1995
Duffy Construction
Active
License #717952
B
Sonoma, CA
Est. 1996
License #718390
B
Sonoma, CA
Est. 1996
Darrel D Welch
Active
License #724090
B
Sonoma, CA
Est. 1996
Sonoma Valley Tree Service
Active
License #731536
D49
Sonoma, CA
Est. 1997
Rocket Science
Active
License #732497
B, C-46
Sonoma, CA
Est. 1997
Perot Construction
Active
License #734142
B
Sonoma, CA
Est. 1997
Award Roofing Inc
Active
License #734338
C-39
Sonoma, CA
Est. 1997
License #735241
B
Sonoma, CA
Est. 1997
License #739119
C-33
Sonoma, CA
Est. 1997
Van'S Construction
Active
License #742306
B
Sonoma, CA
Est. 1997
Rg Construction
Active
License #746491
B
Sonoma, CA
Est. 1998
Rathmore Electric
Active
License #748367
C-10
Sonoma, CA
Est. 1998
Bert Young
Active
License #749654
B
Sonoma, CA
Est. 1998
License #750809
A, HAZ
Sonoma, CA
Est. 1998
Greystone West Company
Active
License #753972
B
Sonoma, CA
Est. 1998
Landers Curry Inc
Active
License #754084
B
Sonoma, CA
Est. 1998
John E Hughes
Active
License #755594
B
Sonoma, CA
Est. 1998
Mcelligott Construction Inc
Active
License #759480
B
Sonoma, CA
Est. 1999
Wine Country Builders Inc
Active
License #763980
B
Sonoma, CA
Est. 1999
Rocha Construction
Active
License #769599
B
Sonoma, CA
Est. 1999
Richard Allen Pomeroy
Active
License #770799
B
Sonoma, CA
Est. 1999