Licensed Contractors in St Helena, California
St Helena has 67 licensed contractors registered with the California Contractors State License Board across 18 trade classifications. The most common specialties are Electrical Contractor (5), Landscaping Contractor (4), Masonry Contractor (3). 42 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
Specialty Contractors
C-10: Electrical Contractor
(5)
C-27: Landscaping Contractor
(4)
C-29: Masonry Contractor
(3)
C-15: Flooring and Floor Covering Contractor
(2)
D49: Tree Service
(2)
C-54: Ceramic and Mosaic Tile Contractor
(2)
C-33: Painting and Decorating Contractor
(2)
C-9: Drywall Contractor
(1)
C-8: Concrete Contractor
(1)
C-53: Swimming Pool Contractor
(1)
Trainor Builders
Active
License #299037
B
St Helena, CA
Est. 1974
Br Construction Inc
Active
License #354668
B
St Helena, CA
Est. 1978
Aqueduct Plumbing
Active
License #380498
B, C-36
St Helena, CA
Est. 1979
Mark Peterson
Active
License #384526
B
St Helena, CA
Est. 1979
Reeves Construction
Active
License #387845
B
St Helena, CA
Est. 1980
St Helena Lighting & Design
Active
License #388033
C-10
St Helena, CA
Est. 1980
T & O Masonry Inc
Active
License #405364
C-29
St Helena, CA
Est. 1981
Dennis Hubert
Active
License #428181
C-10
St Helena, CA
Est. 1982
Thomas Construction
Active
License #441748
B
St Helena, CA
Est. 1983
Gary Galusha Construction
Active
License #470933
B
St Helena, CA
Est. 1985
Hardin Enterprises
Active
License #472109
A
St Helena, CA
Est. 1985
Dp Builders
Active
License #490224
B
St Helena, CA
Est. 1986
Building And Design Inc
Active
License #517581
B
St Helena, CA
Est. 1987
Main Street Electric
Active
License #528175
C-10
St Helena, CA
Est. 1988
License #541531
B
St Helena, CA
Est. 1988
St Helena Development
Active
License #577653
B
St Helena, CA
Est. 1989
North Bay Tile Co
Active
License #581523
C-54
St Helena, CA
Est. 1989
Polly Ogden Associates
Active
License #586270
B
St Helena, CA
Est. 1990
Kenneth Allan Bankson
Active
License #603681
C-33
St Helena, CA
Est. 1990
Friedrich Company
Active
License #618485
B
St Helena, CA
Est. 1991
Ray'S Glass
Active
License #626476
C-17
St Helena, CA
Est. 1991
Amato Electric
Active
License #636032
C-10
St Helena, CA
Est. 1992
Mcgrath Builders
Active
License #639282
B
St Helena, CA
Est. 1992
License #659953
B
St Helena, CA
Est. 1992
Gar Rector & Associates Inc
Active
License #664538
B
St Helena, CA
Est. 1993
Autumn Skies Landscapes
Active
License #706174
C-27
St Helena, CA
Est. 1995
Ebersole Construction
Active
License #735046
B
St Helena, CA
Est. 1997
Western States Investors Inc
Active
License #750082
B
St Helena, CA
Est. 1998
Team Built Construction Inc
Active
License #759265
B
St Helena, CA
Est. 1999
Peter G White
Active
License #764913
B
St Helena, CA
Est. 1999
Taylor - Bailey Inc
Active
License #778716
A
St Helena, CA
Est. 2000
Gastelum Custom Masonry
Active
License #791928
C-29
St Helena, CA
Est. 2001
S G Construction
Active
License #801053
B, C-54
St Helena, CA
Est. 2001
R T S Construction
Active
License #802741
B
St Helena, CA
Est. 2002
Kirk De Alba Construction
Active
License #808046
B
St Helena, CA
Est. 2002
Centric Building Inc
Active
License #862909
B
St Helena, CA
Est. 2005
License #879220
A
St Helena, CA
Est. 2006
Bowdoin Construction Company
Active
License #879406
B
St Helena, CA
Est. 2006
Prime Time Audio Video
Active
License #883142
C-7
St Helena, CA
Est. 2006
Dewyer Contracting
Active
License #888502
B
St Helena, CA
Est. 2006
Ogletree'S Inc
Active
License #909032
C-51, C-60
St Helena, CA
Est. 2008
Kaiser Construction Inc
Active
License #914232
A, B
St Helena, CA
Est. 2008
Upvalley Electric Inc
Active
License #970007
C-10
St Helena, CA
Est. 2012
Fenian'S Finishes
Active
License #984981
C-33
St Helena, CA
Est. 2013
License #1001927
C-15
St Helena, CA
Est. 2015
Wightman Built Inc
Active
License #1010482
B
St Helena, CA
Est. 2016
Quinteros Q Construction Inc
Active
License #1026448
B
St Helena, CA
Est. 2017
Zwischen Studio
Active
License #1027124
B
St Helena, CA
Est. 2017
Signature Tree Solutions
Active
License #1030018
D49
St Helena, CA
Est. 2017
Blue Star Flooring
Active
License #1038027
C-15
St Helena, CA
Est. 2018