Mollenhauer Plumbing & Piping, C-36 Plumbing Contractor in Alpine, CA
Mollenhauer Plumbing & Piping operating as a sole owner holds an active California contractor license (CSLB #1000538), valid through Jan 31, 2027. 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 Alpine, in San Diego County, California.
- License Number
- 1000538
- Issued
- Jan 26, 2015
- Status
- CLEAR
- Expires
- Jan 31, 2027
- Entity
- Sole Owner
- Surety
- Atlantic Specialty Insurance Company
- Bond Number
- 800210770
- Effective
- Jan 8, 2026
- Status
- Active
- Coverage
- Exempt
- Carrier
- —
- Policy Number
- —
- Effective
- Feb 12, 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 Mollenhauer Plumbing & Piping licensed in California?
Yes. Mollenhauer Plumbing & Piping holds California Contractors State License Board license number 1000538, which is active and in good standing. The license was first issued on January 26, 2015. It is valid through January 31, 2027.
What does Mollenhauer Plumbing & Piping specialize in?
Mollenhauer Plumbing & Piping is licensed for one CSLB classification: C-36 Plumbing Contractor.
Where is Mollenhauer Plumbing & Piping headquartered?
Mollenhauer Plumbing & Piping is headquartered at 2111 Alpine Glen Place, Alpine, CA 91901, in San Diego County, California.
Does Mollenhauer Plumbing & Piping have an active surety bond on file with CSLB?
Yes. Mollenhauer Plumbing & Piping has an active California contractor surety bond filed with Atlantic Specialty Insurance Company.
Does Mollenhauer Plumbing & Piping carry workers' compensation coverage?
Mollenhauer Plumbing & Piping reports an exempt workers' compensation status, meaning the business has no employees on payroll.
How do I verify Mollenhauer Plumbing & Piping's contractor license?
You can verify Mollenhauer Plumbing & Piping's license directly with the California Contractors State License Board at https://www.cslb.ca.gov/OnlineServices/CheckLicenseII/LicenseDetail.aspx?LicNum=1000538.
- License issuedJan 26, 2015
- WC coverage startsFeb 12, 2025
- Bond activeJan 8, 2026
- License expiresJan 31, 2027
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