Mr Z's Plumbing Experts
Mr Z's Plumbing Experts operating as a corporation is licensed in California under CSLB number 1152889. It carries a single CSLB classification: C-36 — Plumbing Contractor. Records show an active surety bond on file with Nationwide Mutual Insurance Company and an exempt workers' compensation status (no employees on payroll). The business is based in Antioch, in Contra Costa County, California.
- License Number
- 1152889
- Issued
- Apr 2, 2026
- Status
- CLEAR
- Expires
- Apr 30, 2028
- Entity
- Corporation
- Surety
- Nationwide Mutual Insurance Company
- Bond Number
- 7901212213
- Effective
- Mar 12, 2026
- Status
- Active
- Coverage
- Exempt
- Carrier
- —
- Policy Number
- —
- Effective
- Mar 12, 2026
- Expires
- —
This contractor warrants a closer look before contracting:
- Workers' comp listed as exempt
- License issued less than 2 years ago
An automated summary of public CSLB data, not a credit score, rating, or endorsement. How we determine this
Is Mr Z's Plumbing Experts licensed in California?
Yes. Mr Z's Plumbing Experts holds California Contractors State License Board license number 1152889. The license was first issued on April 2, 2026. It is valid through April 30, 2028.
What does Mr Z's Plumbing Experts specialize in?
Mr Z's Plumbing Experts is licensed for one CSLB classification: C-36 Plumbing Contractor.
Where is Mr Z's Plumbing Experts headquartered?
Mr Z's Plumbing Experts is headquartered at 520 Alumrock Drive, Antioch, CA 94509, in Contra Costa County, California.
Does Mr Z's Plumbing Experts have an active surety bond on file with CSLB?
Yes. Mr Z's Plumbing Experts has an active California contractor surety bond filed with Nationwide Mutual Insurance Company.
Does Mr Z's Plumbing Experts carry workers' compensation coverage?
Mr Z's Plumbing Experts reports an exempt workers' compensation status, meaning the business has no employees on payroll.
How do I verify Mr Z's Plumbing Experts's contractor license?
You can verify Mr Z's Plumbing Experts's license directly with the California Contractors State License Board at https://www.cslb.ca.gov/OnlineServices/CheckLicenseII/LicenseDetail.aspx?LicNum=1152889.
- Bond activeMar 12, 2026
- WC coverage startsMar 12, 2026
- License issuedApr 2, 2026
- License expiresApr 30, 2028
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