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Costello Timothy James

License #937372·Sole Owner·Palmdale, Los Angeles County
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Summary

Costello Timothy James operating as a sole owner is licensed in California under CSLB number 937372. The license was first issued in 2009, putting the business at 17 years on the active CSLB roster. It carries a single CSLB classification: A — General Engineering Contractor. Records show an active surety bond on file with American Contractors Indemnity Company and an exempt workers' compensation status (no employees on payroll). The business is based in Palmdale, in Los Angeles County, California.

Business Information
Address
3757 E Avenue T8
Palmdale, CA 93550
License Details & Classifications
License Number
937372
Issued
Sep 2, 2009
Status
CLEAR
Expires
Sep 30, 2027
Entity
Sole Owner
Financial & Insurance Coverage
Contractor Bond
Surety
American Contractors Indemnity Company
Bond Number
100365814
Effective
Jan 1, 2023
Status
Active
Workers' Compensation
Coverage
Exempt
Carrier
—
Policy Number
—
Effective
Aug 7, 2025
Expires
—
Review

This contractor warrants a closer look before contracting:

  • Workers' comp listed as exempt
License StatusActive
Contractor BondOn file
Workers' CompensationActive

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

Frequently asked questions
Is Costello Timothy James licensed in California?

Yes. Costello Timothy James holds California Contractors State License Board license number 937372. The license was first issued on September 2, 2009. It is valid through September 30, 2027.

What does Costello Timothy James specialize in?

Costello Timothy James is licensed for one CSLB classification: A General Engineering Contractor.

Where is Costello Timothy James headquartered?

Costello Timothy James is headquartered at 3757 E Avenue T8, Palmdale, CA 93550, in Los Angeles County, California.

Does Costello Timothy James have an active surety bond on file with CSLB?

Yes. Costello Timothy James has an active California contractor surety bond filed with American Contractors Indemnity Company.

Does Costello Timothy James carry workers' compensation coverage?

Costello Timothy James reports an exempt workers' compensation status, meaning the business has no employees on payroll.

How do I verify Costello Timothy James's contractor license?

You can verify Costello Timothy James's license directly with the California Contractors State License Board at https://www.cslb.ca.gov/OnlineServices/CheckLicenseII/LicenseDetail.aspx?LicNum=937372.

Activity Timeline
  1. License issuedSep 2, 2009
  2. Bond activeJan 1, 2023
  3. WC coverage startsAug 7, 2025
  4. License expiresSep 30, 2027
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