Robo One Plumbing Corporation, A General Engineering Contractor in Fontana, CA
Robo One Plumbing Corporation operating as a corporation holds California contractor license #639506, which is currently expired (lapsed Sep 30, 2026) and not valid to contract until it is renewed. First issued in 1992, the license has been on the CSLB roster for 34 years. It carries 4 CSLB classifications: A General Engineering Contractor, C-34 Pipeline Contractor, C-36 Plumbing Contractor, and C-42 Sanitation System Contractor. Records show an active surety bond on file with Western Surety Company and active workers' compensation coverage from Mid-Century Insurance Company. The business is based in Fontana, in San Bernardino County, California.
- License Number
- 639506
- Issued
- Mar 14, 1992
- Status
- CLEAR
- Expires
- Sep 30, 2026
- Entity
- Corporation
- Surety
- Western Surety Company
- Bond Number
- 66953204
- Effective
- Jun 1, 2024
- Status
- Active
- Coverage
- Workers' Compensation Insurance
- Carrier
- Mid-Century Insurance Company
- Policy Number
- A09527389
- Effective
- Jan 9, 2026
- Expires
- Jan 9, 2027
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 Robo One Plumbing Corporation licensed in California?
Robo One Plumbing Corporation previously held California Contractors State License Board license number 639506, but the license expired on September 30, 2026 and is not currently valid. It was first issued on March 14, 1992.
What does Robo One Plumbing Corporation specialize in?
Robo One Plumbing Corporation is licensed for 4 CSLB classifications: A General Engineering Contractor, C-34 Pipeline Contractor, C-36 Plumbing Contractor, and C-42 Sanitation System Contractor.
Where is Robo One Plumbing Corporation headquartered?
Robo One Plumbing Corporation is headquartered at P O Box 310686, Fontana, CA 92331, in San Bernardino County, California.
Does Robo One Plumbing Corporation have an active surety bond on file with CSLB?
Yes. Robo One Plumbing Corporation has an active California contractor surety bond filed with Western Surety Company.
Does Robo One Plumbing Corporation carry workers' compensation coverage?
Yes. Robo One Plumbing Corporation carries active workers' compensation coverage through Mid-Century Insurance Company.
How do I verify Robo One Plumbing Corporation's contractor license?
You can verify Robo One Plumbing Corporation's license directly with the California Contractors State License Board at https://www.cslb.ca.gov/OnlineServices/CheckLicenseII/LicenseDetail.aspx?LicNum=639506.
- License issuedMar 14, 1992
- Bond activeJun 1, 2024
- WC coverage startsJan 9, 2026
- License expiredSep 30, 2026
- WC expiresJan 9, 2027
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