Sigma Plumbing, C-36 Plumbing Contractor in Los Angeles, CA
Sigma Plumbing operating as a sole owner holds California contractor license #1043768, which is currently expired (lapsed Aug 31, 2026) and not valid to contract until it is renewed. First issued in 2018, the license has been on the CSLB roster for 8 years. It carries a single CSLB classification: C-36 — Plumbing Contractor. Records show an active surety bond on file with Philadelphia Indemnity Insurance Company and an exempt workers' compensation status (no employees on payroll). The business is based in Los Angeles, in Los Angeles County, California.
- License Number
- 1043768
- Issued
- Aug 29, 2018
- Status
- CLEAR
- Expires
- Aug 31, 2026
- Entity
- Sole Owner
- Surety
- Philadelphia Indemnity Insurance Company
- Bond Number
- PB10163404359
- Effective
- Oct 1, 2025
- Status
- Active
- Coverage
- Exempt
- Carrier
- —
- Policy Number
- —
- Effective
- Jun 20, 2025
- 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 Sigma Plumbing licensed in California?
Sigma Plumbing previously held California Contractors State License Board license number 1043768, but the license expired on August 31, 2026 and is not currently valid. It was first issued on August 29, 2018.
What does Sigma Plumbing specialize in?
Sigma Plumbing is licensed for one CSLB classification: C-36 Plumbing Contractor.
Where is Sigma Plumbing headquartered?
Sigma Plumbing is headquartered at 1538 W 84th St, Los Angeles, CA 90047, in Los Angeles County, California.
Does Sigma Plumbing have an active surety bond on file with CSLB?
Yes. Sigma Plumbing has an active California contractor surety bond filed with Philadelphia Indemnity Insurance Company.
Does Sigma Plumbing carry workers' compensation coverage?
Sigma Plumbing reports an exempt workers' compensation status, meaning the business has no employees on payroll.
How do I verify Sigma Plumbing's contractor license?
You can verify Sigma Plumbing's license directly with the California Contractors State License Board at https://www.cslb.ca.gov/OnlineServices/CheckLicenseII/LicenseDetail.aspx?LicNum=1043768.
- License issuedAug 29, 2018
- WC coverage startsJun 20, 2025
- Bond activeOct 1, 2025
- License expiredAug 31, 2026
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