Alta Loma Plumbing, C-36 Plumbing Contractor in Rancho Cucamonga, CA
Alta Loma Plumbing operating as a partnership holds an active California contractor license (CSLB #522129), valid through Dec 31, 2027. First issued in 1987, the license has been on the CSLB roster for 39 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 Rancho Cucamonga, in San Bernardino County, California.
- License Number
- 522129
- Issued
- Dec 28, 1987
- Status
- CLEAR
- Expires
- Dec 31, 2027
- Entity
- Partnership
- Surety
- Atlantic Specialty Insurance Company
- Bond Number
- 800233536
- Effective
- Jan 19, 2026
- Status
- Active
- Coverage
- Exempt
- Carrier
- —
- Policy Number
- —
- Effective
- Nov 30, 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 Alta Loma Plumbing licensed in California?
Yes. Alta Loma Plumbing holds California Contractors State License Board license number 522129, which is active and in good standing. The license was first issued on December 28, 1987. It is valid through December 31, 2027.
What does Alta Loma Plumbing specialize in?
Alta Loma Plumbing is licensed for one CSLB classification: C-36 Plumbing Contractor.
Where is Alta Loma Plumbing headquartered?
Alta Loma Plumbing is headquartered at 10722 Arrow Rte #812, Rancho Cucamonga, CA 91730, in San Bernardino County, California.
Does Alta Loma Plumbing have an active surety bond on file with CSLB?
Yes. Alta Loma Plumbing has an active California contractor surety bond filed with Atlantic Specialty Insurance Company.
Does Alta Loma Plumbing carry workers' compensation coverage?
Alta Loma Plumbing reports an exempt workers' compensation status, meaning the business has no employees on payroll.
How do I verify Alta Loma Plumbing's contractor license?
You can verify Alta Loma Plumbing's license directly with the California Contractors State License Board at https://www.cslb.ca.gov/OnlineServices/CheckLicenseII/LicenseDetail.aspx?LicNum=522129.
- License issuedDec 28, 1987
- WC coverage startsNov 30, 2025
- Bond activeJan 19, 2026
- License expiresDec 31, 2027
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