Calderon Plumbing, C-36 Plumbing Contractor in Alta Loma, CA
Calderon Plumbing operating as a sole owner holds California contractor license #691317, which is currently expired (lapsed Jun 30, 2026) and not valid to contract until it is renewed. First issued in 1994, the license has been on the CSLB roster for 32 years. It carries a single CSLB classification: C-36 — Plumbing Contractor. Records show an active surety bond on file with Western Surety Company and an exempt workers' compensation status (no employees on payroll). The business is based in Alta Loma, in San Bernardino County, California.
- License Number
- 691317
- Issued
- Jun 29, 1994
- Status
- CLEAR
- Expires
- Jun 30, 2026
- Entity
- Sole Owner
- Surety
- Western Surety Company
- Bond Number
- 67674781
- Effective
- Nov 7, 2025
- Status
- Active
- Coverage
- Exempt
- Carrier
- —
- Policy Number
- —
- Effective
- Jun 28, 2024
- Expires
- —
This contractor has a compliance issue in its public CSLB record:
- License expired
An automated summary of public CSLB data, not a credit score, rating, or endorsement. How we determine this
Is Calderon Plumbing licensed in California?
Calderon Plumbing previously held California Contractors State License Board license number 691317, but the license expired on June 30, 2026 and is not currently valid. It was first issued on June 29, 1994.
What does Calderon Plumbing specialize in?
Calderon Plumbing is licensed for one CSLB classification: C-36 Plumbing Contractor.
Where is Calderon Plumbing headquartered?
Calderon Plumbing is headquartered at 6463 Hollyoak Dr, Alta Loma, CA 91701, in San Bernardino County, California.
Does Calderon Plumbing have an active surety bond on file with CSLB?
Yes. Calderon Plumbing has an active California contractor surety bond filed with Western Surety Company.
Does Calderon Plumbing carry workers' compensation coverage?
Calderon Plumbing reports an exempt workers' compensation status, meaning the business has no employees on payroll.
How do I verify Calderon Plumbing's contractor license?
You can verify Calderon Plumbing's license directly with the California Contractors State License Board at https://www.cslb.ca.gov/OnlineServices/CheckLicenseII/LicenseDetail.aspx?LicNum=691317.
- License issuedJun 29, 1994
- WC coverage startsJun 28, 2024
- Bond activeNov 7, 2025
- License expiredJun 30, 2026
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