Licensed Contractors in Sonora, California

Sonora has 306 licensed contractors registered with the California Contractors State License Board across 48 trade classifications. The most common specialties are Painting and Decorating Contractor (25), Electrical Contractor (24), Tree Service (18). 185 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 (147) A: General Engineering Contractor (35) B-2: Residential Remodeling Contractor (3)

Specialty Contractors

Show all 45 specialty classifications

Peter Construction Company Active
License #265488 B Sonora, CA Est. 1970
H L Culpepper Roofing Active
License #286887 C-39 Sonora, CA Est. 1973
Glenn H Kolpack Inc Active
License #287112 A, B Sonora, CA Est. 1973
Vaughn Construction Active
License #311275 B Sonora, CA Est. 1975
P S C Builders Active
License #327241 B Sonora, CA Est. 1976
Harris Ent Active
License #327158 B Sonora, CA Est. 1976
California Gold Development Corporation Active
License #364660 A, B Sonora, CA Est. 1978
Robert Divine Active
License #371078 B Sonora, CA Est. 1979
Central Active
License #371489 B, C-20 +3 more Sonora, CA Est. 1979
Lafayette Construction Active
License #375409 B, C-10 Sonora, CA Est. 1979
Jex Baldwin Construction Active
License #388530 B Sonora, CA Est. 1980
Barry Dugan Electric Inc Dba Barry Electric Active
License #390861 C-10 Sonora, CA Est. 1980
S J N Construction Active
License #392354 B, C-47 Sonora, CA Est. 1980
Tanko Bros Inc Active
License #395633 C-57 Sonora, CA Est. 1980
The Livengood Company Active
License #397769 B Sonora, CA Est. 1980
Comphel Heating And Air Conditioning Inc Active
License #425077 C-20 Sonora, CA Est. 1982
Canepa And Sons Inc Active
License #425749 C-57 Sonora, CA Est. 1982
Iveson Construction Active
License #432534 B Sonora, CA Est. 1982
Spina General Contracting Inc Active
License #455076 B Sonora, CA Est. 1984
Lindahn Enterprises Active
License #456230 B Sonora, CA Est. 1984
J Hart Plumbing Inc Active
License #459194 C-16, C-20 +1 more Sonora, CA Est. 1984
Mike Mc Connell Construction Active
License #459611 A, B +2 more Sonora, CA Est. 1984
Wayne Waters Plumbing Inc Active
License #463958 C-20, C-36 Sonora, CA Est. 1984
Val Davidson General Contractor Active
License #471167 B, C-54 Sonora, CA Est. 1985
Citadel Construction Active
License #485799 ASB, B +1 more Sonora, CA Est. 1986
Jim Brosnan Construction Active
License #493742 B Sonora, CA Est. 1986
Ron Jensen Construction Active
License #508209 B Sonora, CA Est. 1987
Boyer Construction Active
License #509381 A, B Sonora, CA Est. 1987
Cummings Enterprises Active
License #514944 B Sonora, CA Est. 1987
Silverado Estate Enterprises Inc Active
License #526414 A, B +1 more Sonora, CA Est. 1988
Tanko Dennis Active
License #530534 C-57 Sonora, CA Est. 1988
Alternative Energy Designs Inc Dba A E D Construction Active
License #538140 B Sonora, CA Est. 1988
Ken Keagy Excavating Inc Active
License #538732 A, HAZ Sonora, CA Est. 1988
Prieto'S Painting And Decorating Active
License #540353 C-33 Sonora, CA Est. 1988
National Flooring & Supply Inc Active
License #548809 C-15 Sonora, CA Est. 1988
John Diehl Active
License #556206 B, C-10 Sonora, CA Est. 1989
Lucas Building Corporation Active
License #561363 A, B Sonora, CA Est. 1989
Olsen Investments Inc Dba Olsen Excavation & Grading Active
License #565297 A, C-12 Sonora, CA Est. 1989
Dan O'Connor Electric Active
License #568874 C-10 Sonora, CA Est. 1989
Sorini Construction Active
License #571236 B Sonora, CA Est. 1989
Njirich & Sons Inc Active
License #573731 A Sonora, CA Est. 1989
Wonacott Construction Services Active
License #574638 B Sonora, CA Est. 1989
R H Construction Active
License #587634 B Sonora, CA Est. 1990
Bob'S Woodshed Active
License #592702 B, C-6 Sonora, CA Est. 1990
R Duane Swanson Construction Inc Active
License #602366 B Sonora, CA Est. 1990
Concrete Innovations Inc Active
License #606674 C-8, C-53 Sonora, CA Est. 1990
Robert Caldera Construction Inc Active
License #607403 B Sonora, CA Est. 1990
Sund Construction Co Active
License #607457 B Sonora, CA Est. 1990
Wilsons Backhoe Active
License #613060 A Sonora, CA Est. 1991
Kim Persson Electric Active
License #615074 B, C-10 Sonora, CA Est. 1991

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