Licensed Contractors in Sonoma, California

Sonoma has 365 licensed contractors registered with the California Contractors State License Board across 49 trade classifications. The most common specialties are Electrical Contractor (44), Landscaping Contractor (33), Plumbing Contractor (25). 189 contractors hold general contractor licenses (Class A or B).

All license data is sourced from the California Contractors State License Board (CSLB). Local dataset stamp: N/A. Verify current status before hiring.

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Building & structure Electrical & low voltage Painting & finishes Landscaping & outdoor Plumbing & water Limited specialties HVAC & mechanical Earthwork & concrete Welding & fabrication Roofing & exterior Fire & safety Solar & energy
Napa Sonoma Builders Active
License #117102 B Sonoma, CA Licensed since 1950
Peterson Mechanical Inc Active
License #171486 B, C-4 +7 more Sonoma, CA Licensed since 1957
William Botieff Contractor Active
License #193984 B Sonoma, CA Licensed since 1960
Calleja Paint Co Active
License #249669 C-33 Sonoma, CA Licensed since 1967
E K Excavating Inc Active
License #275372 A, C-12 +1 more Sonoma, CA Licensed since 1972
Northern Lights Electric Active
License #295695 C-10 Sonoma, CA Licensed since 1974
Bill Yeo Electric Inc Active
License #309625 C-10 Sonoma, CA Licensed since 1975
Robert O'Gorman General Contractor Active
License #321530 B Sonoma, CA Licensed since 1976
R J Lely Construction Active
License #325380 B Sonoma, CA Licensed since 1976
Waldron Landscaping Inc Active
License #346260 C-27 Sonoma, CA Licensed since 1977
D J S Steel Company Inc Active
License #348316 C-50 Sonoma, CA Licensed since 1977
Larbre Well Drilling And Pumps Inc Active
License #348203 C-57, D21 Sonoma, CA Licensed since 1977
Steve C Burlington Active
License #375816 B, C-10 Sonoma, CA Licensed since 1979
Dunham'S Back-Hoe Service Active
License #379304 A Sonoma, CA Licensed since 1979
Atelier Wellander Inc Active
License #381200 C-27 Sonoma, CA Licensed since 1979
Golden West Glass Co Active
License #381756 C-17 Sonoma, CA Licensed since 1979
Versaggi Construction Active
License #389865 A, B Sonoma, CA Licensed since 1980
Sculptural Gates Llc Active
License #394536 C-10, C-23 Sonoma, CA Licensed since 1980
Jon Ray & Sons Construction Active
License #397968 B Sonoma, CA Licensed since 1980
Infusion Inc Active
License #403444 C-27 Sonoma, CA Licensed since 1981
Ledson Construction Active
License #404946 B Sonoma, CA Licensed since 1981
Gerald Stanley Rupiper Active
License #416906 B Sonoma, CA Licensed since 1982
Ed Sammon Construction Active
License #418048 B, C-51 Sonoma, CA Licensed since 1982
American Builders Active
License #427930 A, B +4 more Sonoma, CA Licensed since 1982
Castelli Construction Active
License #428801 B Sonoma, CA Licensed since 1982
Voltair Electric Active
License #447266 C-10 Sonoma, CA Licensed since 1983
Ferrando'S Plumbing & Heating Inc Active
License #449417 C-36 Sonoma, CA Licensed since 1983
Scandia Landscaping Active
License #452594 C-27 Sonoma, CA Licensed since 1984
Abide International Inc Active
License #462833 A, B Sonoma, CA Licensed since 1984
Serres Corporation Active
License #471196 A Sonoma, CA Licensed since 1985
Ryan Engineering Incorporated Active
License #476513 A, C-21 Sonoma, CA Licensed since 1985
Brady Construction Company Active
License #479385 B Sonoma, CA Licensed since 1985
Lennon Heating & Air Conditioning Inc Active
License #486309 C-20, C-43 Sonoma, CA Licensed since 1986
Szanyi Construction Inc Active
License #508018 B Sonoma, CA Licensed since 1987
Severson Heating & Cooling Active
License #508393 C-20, C-38 Sonoma, CA Licensed since 1987
Spiffy'S Active
License #508794 D63 Sonoma, CA Licensed since 1987
Nyberg Landscaping Incorporated Active
License #510617 C-27 Sonoma, CA Licensed since 1987
Portello Construction Active
License #518418 B Sonoma, CA Licensed since 1987
Phelim J Sweeney Construction Active
License #520619 B Sonoma, CA Licensed since 1987
Woebcke Painting Active
License #534999 C-33 Sonoma, CA Licensed since 1988
Arbor Fence Inc Active
License #543558 C-13, C-60 +1 more Sonoma, CA Licensed since 1988
Sonoma Security Lock Safe & Key Active
License #549458 D16 Sonoma, CA Licensed since 1988
Wudtke Built Dba Portal Construction Active
License #552858 B Sonoma, CA Licensed since 1989
Daniel Stephen Szumski Active
License #566657 B Sonoma, CA Licensed since 1989
The Sungarden Company Inc Active
License #577385 C-27 Sonoma, CA Licensed since 1989
Harvest Moon Active
License #581888 B Sonoma, CA Licensed since 1989
Demings Demolition Active
License #581967 C-21 Sonoma, CA Licensed since 1989
De Martini Electric Inc Active
License #584784 C-10 Sonoma, CA Licensed since 1990
Hoh Builders Active
License #587755 B Sonoma, CA Licensed since 1990
Byrnes & Mcclellan Construction Inc Active
License #615048 B, C-16 Sonoma, CA Licensed since 1991

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Licensing Resources

How to verify a contractor license
Deposit and payment rules for California contracts
Home improvement contract requirements

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