Licensed Contractors in Clayton, California

Clayton has 150 licensed contractors registered with the California Contractors State License Board across 33 trade classifications. The most common specialties are Electrical Contractor (17), Landscaping Contractor (11), Painting and Decorating Contractor (11). 99 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 (83) A: General Engineering Contractor (15) B-2: Residential Remodeling Contractor (1)

Specialty Contractors

Show all 30 specialty classifications

Stanley M Bergum Active
License #229804 B Clayton, CA Est. 1964
Contra Costa Plumbing Active
License #303993 C-10, C-36 Clayton, CA Est. 1975
Claiborne Construction Active
License #320562 B Clayton, CA Est. 1976
T J Carpet Active
License #361761 C-15 Clayton, CA Est. 1978
G N Henley Inc Active
License #373161 A, B +7 more Clayton, CA Est. 1979
Majestic Landscape Active
License #373538 B, C-8 +2 more Clayton, CA Est. 1979
Howard'S Grading & Excavating Active
License #394824 A, B Clayton, CA Est. 1980
Flynn Electric Active
License #460367 C-10 Clayton, CA Est. 1984
Golden Oak Construction Active
License #472526 B Clayton, CA Est. 1985
D S Castro Inc Dba Horizon Construction Company Active
License #476952 A Clayton, CA Est. 1985
Grizzly Inc Active
License #478680 B Clayton, CA Est. 1985
Miracle Method Of Contra Costa/Alameda Inc Active
License #478871 C-33 Clayton, CA Est. 1985
Richard B Seeno Active
License #497536 A, B +1 more Clayton, CA Est. 1986
Clayton Valley Mechanical Heating And Air Conditioning Active
License #507324 C-20, C-38 Clayton, CA Est. 1987
Atic Construction Inc Active
License #510319 B Clayton, CA Est. 1987
Jerry Smith Landscape Services Active
License #521152 C-27 Clayton, CA Est. 1987
C M E Construction Inc Active
License #524506 A, C-10 Clayton, CA Est. 1988
D Clearwater Construction Active
License #524547 B Clayton, CA Est. 1988
Ken Mitolo Construction Active
License #531028 B Clayton, CA Est. 1988
Pargett Landscape & Lighting Active
License #545807 C-27 Clayton, CA Est. 1988
The Pool Company Active
License #547312 C-53 Clayton, CA Est. 1988
Urs Corporation Active
License #560739 A, B Clayton, CA Est. 1989
Rich Mc Carthy Plumbing Active
License #566929 C-36 Clayton, CA Est. 1989
Nu Image Painting And Construction Active
License #572337 B, C-33 Clayton, CA Est. 1989
Hatley Construction Company Active
License #573170 B Clayton, CA Est. 1989
Black Oak Construction Active
License #605964 B Clayton, CA Est. 1990
Nordic General Building Contractor Active
License #606970 B Clayton, CA Est. 1990
Anderson Construction Active
License #622558 B, C-9 Clayton, CA Est. 1991
Magic Hammer Remodeling Active
License #630233 B Clayton, CA Est. 1991
Lucchese And Sons Active
License #635229 B Clayton, CA Est. 1992
Volga Plumbing Active
License #639239 C-36 Clayton, CA Est. 1992
Edward Waraner Tree Service Active
License #642272 D49 Clayton, CA Est. 1992
Accurate Corrosion Control Inc Active
License #654613 A Clayton, CA Est. 1992
Fjellbo & Son Construction Inc Active
License #660977 B Clayton, CA Est. 1992
Silverado Valley Electric Active
License #665725 C-10 Clayton, CA Est. 1993
Aquapro Pool & Chemical Inc Active
License #671549 C-53, D35 Clayton, CA Est. 1993
Jakes Electric Active
License #673503 C-10 Clayton, CA Est. 1993
Shield Of Armor Painting Inc Active
License #679198 B, C-33 Clayton, CA Est. 1993
Sunshine Pool Service Active
License #695859 D35 Clayton, CA Est. 1994
Besam West Inc Active
License #700032 C-17 Clayton, CA Est. 1994
Mc Carthy Construction Active
License #701497 B Clayton, CA Est. 1995
Schaefer'S Painting Active
License #708321 C-33 Clayton, CA Est. 1995
Lou'S Construction Active
License #709870 B Clayton, CA Est. 1995
Howard Butler Electric Active
License #710564 C-10 Clayton, CA Est. 1995
J & R Floor Services Active
License #714096 B, C-2 +1 more Clayton, CA Est. 1995
Mace Electric Active
License #714780 B, C-10 Clayton, CA Est. 1995
Bravo Building Co Inc Active
License #716268 A, B +1 more Clayton, CA Est. 1995
J D Co Active
License #717757 B Clayton, CA Est. 1996
T G B Service Contractor Active
License #723384 C-10, C-36 Clayton, CA Est. 1996
W D S Construction Company Active
License #723846 B Clayton, CA Est. 1996

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