NAPA SONOMA BUILDERS
License
- Status
- CLEAR
- First issued
- February 10, 1950
- Reissued
- July 17, 2018
- Expires
- July 31, 2028
- Entity
- Sole Owner
- Address of record
- 19235 ROBINSON ROAD, Sonoma, CA 95476
- Phone of record
- (916) 602 7418
Contractor bond
- Surety
- WESTERN SURETY COMPANY
- Bond number
- 65410206
- Amount
- $25,000
- Effective
- January 1, 2023
Workers’ compensation
This contractor has certified to the state that they have no employees, so they carry no workers’ compensation policy. The exemption covers only the license holder. If anyone else works on your project — a crew, a helper, a day laborer — they are not covered, and an injury on your property can become your liability. Ask who will physically be on site.
Are they licensed for your job?
A California contractor may only contract for work their classification covers. Pick the job and this reads the license on file against it.
Licensed to perform
A contractor may only contract for work within their classifications. See all 158 licensed general building contractors in Sonoma.
People on this license
| Name | Title | Since | Through |
|---|---|---|---|
| MAZZAFERRO RONALD SPENCER | Sole Owner | July 17, 2018 | Current |
| MAZZAFERRI JOSEPH PETE | Sole Owner | February 10, 1950 | June 27, 1997 |
| MAZZAFERRO RONALD SPENCER | Sole Owner | June 27, 1997 | March 24, 2004 |
Verified status badge
Put this on your website or in a bid packet. It reads the state’s record live every time someone loads it, so it is never a screenshot of a good day. Free, and you don’t need to claim this listing to use it.
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<img src="https://bookofbuilders.com/badge/117102.svg" alt="NAPA SONOMA BUILDERS — California contractor license #117102 status, verified against CSLB records" width="268" height="76">
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Is this your license?
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Source: California Contractors State License Board public records. Coverage lapse is evaluated against today’s date; all other fields reflect the latest weekly CSLB file. Confirm at the CSLB’s official record before signing a contract.