Dumm Jeff
Rocklin · Placer County · CA
Verified
Bestopedia verdict
California’s contractor board lists Dumm Jeff 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
- 16.9 / 30
- License continuity
- 10 / 10
- Workers' comp
- 9 / 12
- Contractor bond
- 8 / 8
The verified record
- CSLB license
- #899090 verify on CSLB ↗
- Classifications
- B, C-10
- Years licensed
- 19.0 years since 06/22/2007
- Contractor bond
- $25,000 Western Surety Company
- Workers’ comp
- Current
- Business type
- Sole Owner
- Qualifying principal
- Jeffrey Nyles Dumm
- Address of record
- 4415 Race Track Road, Rocklin, CA 95677
Frequently Asked Questions
Is Dumm Jeff a licensed Electrical contractor in California?
Yes. Dumm Jeff holds California CSLB contractor license #899090 with a C-10 (Electrical) classification. Current CSLB status: CLEAR (as of July 2026).
What work is Dumm Jeff licensed to perform?
Dumm Jeff is licensed for C-10 (Electrical), plus additional classifications: B.
Is Dumm Jeff bonded?
Yes. Dumm Jeff carries contractor's bond #67371367 for $25,000 through Western Surety Company.
Does Dumm Jeff carry workers' compensation insurance?
CSLB records list the workers' compensation status for Dumm Jeff as Exempt.
How long has Dumm Jeff held its contractor license?
Dumm Jeff has held California contractor license #899090 since 06/22/2007, approximately 19 years (as of July 2026).
Where is Dumm Jeff located?
Dumm Jeff is based in Rocklin, Placer County, CA 95677.