Osterman Plumbing, C-36 Plumbing Contractor in Carlsbad, CA
Osterman Plumbing operating as a corporation holds an active California contractor license (CSLB #1008686), valid through Feb 29, 2028. First issued in 2015, the license has been on the CSLB roster for 11 years. It carries a single CSLB classification: C-36 — Plumbing Contractor. Records show an active surety bond on file with Atlantic Specialty Insurance Company and an exempt workers' compensation status (no employees on payroll). The business is based in Carlsbad, in San Diego County, California.
- License Number
- 1008686
- Issued
- Nov 4, 2015
- Status
- CLEAR
- Expires
- Feb 29, 2028
- Entity
- Corporation
- Surety
- Atlantic Specialty Insurance Company
- Bond Number
- 800230777
- Effective
- Jan 30, 2026
- Status
- Active
- Coverage
- Exempt
- Carrier
- —
- Policy Number
- —
- Effective
- Feb 25, 2026
- 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 Osterman Plumbing licensed in California?
Yes. Osterman Plumbing holds California Contractors State License Board license number 1008686, which is active and in good standing. The license was first issued on November 4, 2015. It is valid through February 29, 2028.
What does Osterman Plumbing specialize in?
Osterman Plumbing is licensed for one CSLB classification: C-36 Plumbing Contractor.
Where is Osterman Plumbing headquartered?
Osterman Plumbing is headquartered at 2841 Cacatua St, Carlsbad, CA 92009, in San Diego County, California.
Does Osterman Plumbing have an active surety bond on file with CSLB?
Yes. Osterman Plumbing has an active California contractor surety bond filed with Atlantic Specialty Insurance Company.
Does Osterman Plumbing carry workers' compensation coverage?
Osterman Plumbing reports an exempt workers' compensation status, meaning the business has no employees on payroll.
How do I verify Osterman Plumbing's contractor license?
You can verify Osterman Plumbing's license directly with the California Contractors State License Board at https://www.cslb.ca.gov/OnlineServices/CheckLicenseII/LicenseDetail.aspx?LicNum=1008686.
- License issuedNov 4, 2015
- Bond activeJan 30, 2026
- WC coverage startsFeb 25, 2026
- License expiresFeb 29, 2028
- Abc Plus#460214Chula Vista·B General Building Contractor
- Archer Roger D Construction#465026San Diego·B General Building Contractor
- Chris Plumbing CO#465306San Diego·C-36 Plumbing Contractor
- Corke Construction INC#425471Encinitas·B General Building Contractor
- Sloan Plumbing Services INC#425529Lakeside·A General Engineering Contractor
- Mettler Construction and Management#409816Ramona·B General Building Contractor
- Economy Plumbing CO#411723Escondido·C-20 HVAC Contractor
- Reade Frank Plumbing#415278San Marcos·C-36 Plumbing Contractor
Working a California job with Osterman Plumbing, 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 Osterman Plumbing? Claim or correct this profile