Master Plumbing and Sewer INC, C-36 Plumbing Contractor in Mountain View, CA
Master Plumbing and Sewer INC operating as a corporation holds an active California contractor license (CSLB #812321), valid through Nov 30, 2026. First issued in 2002, the license has been on the CSLB roster for 24 years. It carries a single CSLB classification: C-36 — Plumbing Contractor. Records show an active surety bond on file with Merchants Bonding Company (mutual) and active workers' compensation coverage from Hartford Casualty Insurance Company. The business is based in Mountain View, in Santa Clara County, California.
- License Number
- 812321
- Issued
- Sep 9, 2002
- Status
- CLEAR
- Expires
- Nov 30, 2026
- Entity
- Corporation
- Surety
- Merchants Bonding Company (mutual)
- Bond Number
- 101817343
- Effective
- Apr 25, 2026
- Status
- Active
- Coverage
- Workers' Compensation Insurance
- Carrier
- Hartford Casualty Insurance Company
- Policy Number
- 57WECBU2J87
- Effective
- Oct 1, 2025
- Expires
- Oct 1, 2026
This contractor warrants a closer look before contracting:
- License expires in 89 days
An automated summary of public CSLB data, not a credit score, rating, or endorsement. How we determine this
Is Master Plumbing and Sewer INC licensed in California?
Yes. Master Plumbing and Sewer INC holds California Contractors State License Board license number 812321, which is active and in good standing. The license was first issued on September 9, 2002. It is valid through November 30, 2026.
What does Master Plumbing and Sewer INC specialize in?
Master Plumbing and Sewer INC is licensed for one CSLB classification: C-36 Plumbing Contractor.
Where is Master Plumbing and Sewer INC headquartered?
Master Plumbing and Sewer INC is headquartered at P O Box 939, Mountain View, CA 94042, in Santa Clara County, California.
Does Master Plumbing and Sewer INC have an active surety bond on file with CSLB?
Yes. Master Plumbing and Sewer INC has an active California contractor surety bond filed with Merchants Bonding Company (mutual).
Does Master Plumbing and Sewer INC carry workers' compensation coverage?
Yes. Master Plumbing and Sewer INC carries active workers' compensation coverage through Hartford Casualty Insurance Company.
How do I verify Master Plumbing and Sewer INC's contractor license?
You can verify Master Plumbing and Sewer INC's license directly with the California Contractors State License Board at https://www.cslb.ca.gov/OnlineServices/CheckLicenseII/LicenseDetail.aspx?LicNum=812321.
- License issuedSep 9, 2002
- WC coverage startsOct 1, 2025
- Bond activeApr 25, 2026
- WC expiresOct 1, 2026
- License expiresNov 30, 2026
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