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Knott Tom Plumbing Company

License #573451·Sole Owner·Torrance, Los Angeles County
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Summary

Knott Tom Plumbing Company operating as a sole owner is licensed in California under CSLB number 573451. The license was first issued in 1989, putting the business at 37 years on the active CSLB roster. 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 Records show a previously-filed surety bond from Business Alliance Insurance Company that is no longer active and an exempt workers' compensation status (no employees on payroll).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.

Business Information
Address
3438 Artesia Blvd
Torrance, CA 90504
License Details & Classifications
License Number
573451
Issued
Jul 21, 1989
Status
CLEAR
Expires
Jul 31, 2027
Entity
Sole Owner
Financial & Insurance Coverage
Contractor Bond
Surety
Business Alliance Insurance Company
Bond Number
G150508010078
Effective
May 9, 2025
Status
Cancelled
Cancelled
May 10, 2026
Workers' Compensation
Coverage
Exempt
Carrier
—
Policy Number
—
Effective
Apr 23, 2026
Expires
—
Alert

This contractor has a compliance issue in its public CSLB record:

  • Contractor bond cancelled
License StatusActive
Contractor BondCancelled
Workers' CompensationActive

An automated summary of public CSLB data, not a credit score, rating, or endorsement. How we determine this

Frequently asked questions
Is Knott Tom Plumbing Company licensed in California?

Yes. Knott Tom Plumbing Company holds California Contractors State License Board license number 573451. 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Knott Tom Plumbing Company has a previously-filed surety bond from Business Alliance Insurance Company that is no longer active.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.

Activity Timeline
  1. License issuedJul 21, 1989
  2. Bond activeMay 9, 2025
  3. WC coverage startsApr 23, 2026
  4. Bond cancelledMay 10, 2026
  5. License expiresJul 31, 2027
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