Knott Tom Plumbing Company, C-36 Plumbing Contractor in Torrance, CA
Knott Tom Plumbing Company operating as a sole owner holds an active California contractor license (CSLB #573451), valid through Jul 31, 2027. First issued in 1989, the license has been on the CSLB roster for 37 years. It carries a single CSLB classification: C-36 — Plumbing Contractor. Records show a previously-filed surety bond from Business Alliance Insurance Company that is no longer active and an exempt workers' compensation status (no employees on payroll). The business is based in Torrance, in Los Angeles County, California.
- License Number
- 573451
- Issued
- Jul 21, 1989
- Status
- CLEAR
- Expires
- Jul 31, 2027
- Entity
- Sole Owner
- Surety
- Business Alliance Insurance Company
- Bond Number
- G150508010078
- Effective
- May 9, 2025
- Status
- Cancelled
- Cancelled
- May 10, 2026
- Coverage
- Exempt
- Carrier
- —
- Policy Number
- —
- Effective
- Apr 23, 2026
- Expires
- —
This contractor has a compliance issue in its public CSLB record:
- Contractor bond cancelled
An automated summary of public CSLB data, not a credit score, rating, or endorsement. How we determine this
Is Knott Tom Plumbing Company licensed in California?
Yes. Knott Tom Plumbing Company holds California Contractors State License Board license number 573451, which is active and in good standing. The license was first issued on July 21, 1989. It is valid through July 31, 2027.
What does Knott Tom Plumbing Company specialize in?
Knott Tom Plumbing Company is licensed for one CSLB classification: C-36 Plumbing Contractor.
Where is Knott Tom Plumbing Company headquartered?
Knott Tom Plumbing Company is headquartered at 3438 Artesia Blvd, Torrance, CA 90504, in Los Angeles County, California.
Does Knott Tom Plumbing Company have an active surety bond on file with CSLB?
Knott Tom Plumbing Company has a previously-filed surety bond from Business Alliance Insurance Company that is no longer active.
Does Knott Tom Plumbing Company carry workers' compensation coverage?
Knott Tom Plumbing Company reports an exempt workers' compensation status, meaning the business has no employees on payroll.
How do I verify Knott Tom Plumbing Company's contractor license?
You can verify Knott Tom Plumbing Company's license directly with the California Contractors State License Board at https://www.cslb.ca.gov/OnlineServices/CheckLicenseII/LicenseDetail.aspx?LicNum=573451.
- License issuedJul 21, 1989
- Bond activeMay 9, 2025
- WC coverage startsApr 23, 2026
- Bond cancelledMay 10, 2026
- License expiresJul 31, 2027
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