O S B Plumbing
O S B Plumbing operating as a sole owner is licensed in California under CSLB number 961842. The license was first issued in 2011, putting the business at 15 years on the active CSLB roster. It carries a single CSLB classification: C-36 — Plumbing Contractor. Records show an active surety bond on file with American Contractors Indemnity Company and an exempt workers' compensation status (no employees on payroll). The business is based in Chula Vista, in San Diego County, California.
- License Number
- 961842
- Issued
- Jun 7, 2011
- Status
- CLEAR
- Expires
- Jun 30, 2027
- Entity
- Sole Owner
- Surety
- American Contractors Indemnity Company
- Bond Number
- 100245799
- Effective
- Jan 1, 2023
- Status
- Active
- Coverage
- Exempt
- Carrier
- —
- Policy Number
- —
- Effective
- Dec 30, 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 O S B Plumbing licensed in California?
Yes. O S B Plumbing holds California Contractors State License Board license number 961842. The license was first issued on June 7, 2011. It is valid through June 30, 2027.
What does O S B Plumbing specialize in?
O S B Plumbing is licensed for one CSLB classification: C-36 Plumbing Contractor.
Where is O S B Plumbing headquartered?
O S B Plumbing is headquartered at 27 Tourmaline Street, Chula Vista, CA 91911, in San Diego County, California.
Does O S B Plumbing have an active surety bond on file with CSLB?
Yes. O S B Plumbing has an active California contractor surety bond filed with American Contractors Indemnity Company.
Does O S B Plumbing carry workers' compensation coverage?
O S B Plumbing reports an exempt workers' compensation status, meaning the business has no employees on payroll.
How do I verify O S B Plumbing's contractor license?
You can verify O S B Plumbing's license directly with the California Contractors State License Board at https://www.cslb.ca.gov/OnlineServices/CheckLicenseII/LicenseDetail.aspx?LicNum=961842.
- License issuedJun 7, 2011
- Bond activeJan 1, 2023
- WC coverage startsDec 30, 2025
- License expiresJun 30, 2027
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