Siena Electric, B General Building Contractor in Simi Valley, CA
Siena Electric operating as a sole owner holds an active California contractor license (CSLB #856146), valid through Mar 31, 2027. First issued in 2005, the license has been on the CSLB roster for 21 years. It carries 3 CSLB classifications: B General Building Contractor, C-10 Electrical Contractor, and C-36 Plumbing Contractor. Records show an active surety bond on file with Western Surety Company and an exempt workers' compensation status (no employees on payroll). The business is based in Simi Valley, in Ventura County, California.
- License Number
- 856146
- Issued
- Mar 22, 2005
- Status
- CLEAR
- Expires
- Mar 31, 2027
- Entity
- Sole Owner
- Surety
- Western Surety Company
- Bond Number
- 67698651
- Effective
- Dec 1, 2025
- Status
- Active
- Coverage
- Exempt
- Carrier
- —
- Policy Number
- —
- Effective
- Nov 24, 2025
- Expires
- —
This contractor warrants a closer look before contracting:
- Workers' comp listed as exempt
An automated summary of public CSLB data, not a credit score, rating, or endorsement. How we determine this
Is Siena Electric licensed in California?
Yes. Siena Electric holds California Contractors State License Board license number 856146, which is active and in good standing. The license was first issued on March 22, 2005. It is valid through March 31, 2027.
What does Siena Electric specialize in?
Siena Electric is licensed for 3 CSLB classifications: B General Building Contractor, C-10 Electrical Contractor, and C-36 Plumbing Contractor.
Where is Siena Electric headquartered?
Siena Electric is headquartered at 276 Capri Drive, Simi Valley, CA 93065, in Ventura County, California.
Does Siena Electric have an active surety bond on file with CSLB?
Yes. Siena Electric has an active California contractor surety bond filed with Western Surety Company.
Does Siena Electric carry workers' compensation coverage?
Siena Electric reports an exempt workers' compensation status, meaning the business has no employees on payroll.
How do I verify Siena Electric's contractor license?
You can verify Siena Electric's license directly with the California Contractors State License Board at https://www.cslb.ca.gov/OnlineServices/CheckLicenseII/LicenseDetail.aspx?LicNum=856146.
- License issuedMar 22, 2005
- WC coverage startsNov 24, 2025
- Bond activeDec 1, 2025
- License expiresMar 31, 2027
- Blackstock David#332853Ventura·B General Building Contractor
- Walt Construction Corporation#310770Simi Valley·A General Engineering Contractor
- Sarnelle Construction CORP#327837Westlake Village·B General Building Contractor
- Dornbusch Mark Allen#331566Oak View·B General Building Contractor
- Suttles Plumbing & Mechanical CORP#268688Simi Valley·B General Building Contractor
- Cohen M V Construction#268805Thousand Oaks·B General Building Contractor
- Sawchuk Ness E#284288Simi Valley·B General Building Contractor
- Halpin Gary A Contractor#292842Newbury Park·B General Building Contractor
Working a California job with Siena Electric, or chasing an unpaid invoice? These free tools track your mechanics lien deadlines and rights under California Civil Code §§8200–8848.
- California preliminary notice deadline calculatorFind your 20-day deadline and the lien rights at risk.
- Do I need a preliminary notice in California?Answer a few questions to see if the 20-day notice applies.
- Did I lose my California lien rights?Check whether your mechanics lien window has passed.
- Unpaid construction invoice in CaliforniaYour options and deadlines for collecting on a California job.
Own Siena Electric? Claim or correct this profile