Public CSLB records

Mahaffey Don H Drilling CO, A General Engineering Contractor in Compton, CA

License #139513·Corporation·Compton, Los Angeles County
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Summary

Mahaffey Don H Drilling CO operating as a corporation holds an active California contractor license (CSLB #139513), valid through Aug 31, 2026. First issued in 1953, the license has been on the CSLB roster for 73 years. It carries a single CSLB classification: A — General Engineering Contractor. Records show an active surety bond on file with Arch Insurance Company and active workers' compensation coverage from Travelers Property Casualty Company of America. The business is based in Compton, in Los Angeles County, California.

Business Information
Address
1800 South Alameda Street
Compton, CA 90221
License Details & Classifications
License Number
139513
Issued
Jul 14, 1953
Status
CLEAR
Expires
Aug 31, 2026
Entity
Corporation
Financial & Insurance Coverage
Contractor Bond
Surety
Arch Insurance Company
Bond Number
SU5006488
Effective
Jan 1, 2023
Status
Active
Workers' Compensation
Coverage
Workers' Compensation Insurance
Carrier
Travelers Property Casualty Company of America
Policy Number
UB3W803722
Effective
Mar 1, 2026
Expires
Mar 1, 2027
Review

This contractor warrants a closer look before contracting:

  • License expires in 65 days
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 Mahaffey Don H Drilling CO licensed in California?

Yes. Mahaffey Don H Drilling CO holds California Contractors State License Board license number 139513, which is active and in good standing. The license was first issued on July 14, 1953. It is valid through August 31, 2026.

What does Mahaffey Don H Drilling CO specialize in?

Mahaffey Don H Drilling CO is licensed for one CSLB classification: A General Engineering Contractor.

Where is Mahaffey Don H Drilling CO headquartered?

Mahaffey Don H Drilling CO is headquartered at 1800 South Alameda Street, Compton, CA 90221, in Los Angeles County, California.

Does Mahaffey Don H Drilling CO have an active surety bond on file with CSLB?

Yes. Mahaffey Don H Drilling CO has an active California contractor surety bond filed with Arch Insurance Company.

Does Mahaffey Don H Drilling CO carry workers' compensation coverage?

Yes. Mahaffey Don H Drilling CO carries active workers' compensation coverage through Travelers Property Casualty Company of America.

How do I verify Mahaffey Don H Drilling CO's contractor license?

You can verify Mahaffey Don H Drilling CO's license directly with the California Contractors State License Board at https://www.cslb.ca.gov/OnlineServices/CheckLicenseII/LicenseDetail.aspx?LicNum=139513.

Activity Timeline
  1. License issuedJul 14, 1953
  2. Bond activeJan 1, 2023
  3. WC coverage startsMar 1, 2026
  4. License expiresAug 31, 2026
  5. WC expiresMar 1, 2027
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California lien & payment resources

Working a California job with Mahaffey Don H Drilling CO, or chasing an unpaid invoice? These free tools track your mechanics lien deadlines and rights under California Civil Code §§8200–8848.

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