Napa Sonoma Builders
Sonoma · Sonoma County · CA
Verified
Bestopedia verdict
California’s contractor board lists Napa Sonoma Builders with a license standing of CLEAR. A contractor bond is on file, and workers’ compensation coverage is current.
- License standing
- 25 / 25
- Clean record
- 15 / 15
- Track record
- 30 / 30
- License continuity
- 5 / 10
- Workers' comp
- 9 / 12
- Contractor bond
- 8 / 8
The verified record
- CSLB license
- #117102 verify on CSLB ↗
- Classifications
- B
- Years licensed
- 76.4 years since 02/10/1950
- Contractor bond
- $25,000 Western Surety Company
- Workers’ comp
- Current
- Business type
- Sole Owner
- Qualifying principal
- Ronald Spencer Mazzaferro
- Address of record
- 19235 Robinson Road, Sonoma, CA 95476
Frequently Asked Questions
Is Napa Sonoma Builders a licensed General Contractor contractor in California?
Yes. Napa Sonoma Builders holds California CSLB contractor license #117102 with a B (General Building) classification. Current CSLB status: CLEAR (as of July 2026).
What work is Napa Sonoma Builders licensed to perform?
Napa Sonoma Builders is licensed for B (General Building).
Is Napa Sonoma Builders bonded?
Yes. Napa Sonoma Builders carries contractor's bond #65410206 for $25,000 through Western Surety Company.
Does Napa Sonoma Builders carry workers' compensation insurance?
CSLB records list the workers' compensation status for Napa Sonoma Builders as Exempt.
How long has Napa Sonoma Builders held its contractor license?
Napa Sonoma Builders has held California contractor license #117102 since 02/10/1950, approximately 76 years (as of July 2026).
Where is Napa Sonoma Builders located?
Napa Sonoma Builders is based in Sonoma, Sonoma County, CA 95476.