License activeVerified against CSLB records

MAHAFFEY DON H DRILLING CO

General engineering and hazardous substances removal contractor in Compton, Los Angeles County. CA license #139513

A · General Engineering
HAZ · Hazardous Substances Removal
Licensed since
195373 years
Entity
CorporationCompton, CA
License bond
$25,000On file
Workers' comp
CoveredPolicy through Mar 2027
Discipline
NoneOn public record

Trusted by

  • Evolved Property Group logo
  • Pacific Lifestyle Homes logo
  • Neo Builders logo
  • Khera Group logo

License and compliance history

Source: CSLB public license data

  1. 1953
    License issued, A General EngineeringIssued Jul 14, 1953. Corporation. Classifications on record: A, HAZ.
  2. 2023
    License bond of $25,000 on fileCurrent bond effective Jan 1, 2023.
  3. 2026
    Workers' comp policy on fileTRAVELERS PROPERTY CASUALTY COMPANY OF AMERICA, policy #UB3W803722. Effective Mar 1, 2026. Current through Mar 1, 2027.
  4. Now
    License expiration on recordAug 31, 2028.
  5. Now
    No disciplinary actionsNone on CSLB public record as of Aug 14, 2026.

Insurance a A / HAZ contractor usually needs

What owners and GCs typically ask for on residential and light commercial jobs

  • Workers' compensationCalifornia requires it as soon as a contractor has employees.
    Get quotes
  • General liabilityOwner contracts commonly ask for $1M per occurrence / $2M aggregate, often with additional insured.
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  • Builder's riskNew homes and major rebuilds need it while the structure is going up; the contract says who buys it.
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  • Commercial autoCovers trucks and the trailer hauling materials to each site.
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Start one submission for every line

Bonds for California A and HAZ contractors

All California bonds
Required, on file

California contractor license bond

$25,000

Every active CSLB license needs one. Renew or replace it here.

From $200/yr
Get this bond
Los Angeles County

Grading Permit Security Bond

Set by the permit

Issued for work in Los Angeles County.

1%, $100 min
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Public work

Bid bond

Often 10% of bid

Submitted with a bid on many California public projects.

Free
Get prequalified
After award

Performance and payment bonds

Up to 100% of contract

California public works over $25,000 require a payment bond.

Quoted per project
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Bonds are underwritten and issued by our surety partner. Rates depend on the applicant's credit and history.

Questions about MAHAFFEY DON H DRILLING

What work can MAHAFFEY DON H DRILLING do with a A license?

CSLB records list A (General Engineering) and HAZ (Hazardous Substances Removal) on this license, so MAHAFFEY DON H DRILLING can take work in each of those classifications.

Does MAHAFFEY DON H DRILLING have a contractor license bond?

Yes. CSLB records show a $25,000 contractor license bond on file as of Aug 14, 2026.

Does MAHAFFEY DON H DRILLING carry workers' compensation?

CSLB shows a workers' comp policy on file, current through March 2027. Ask for a certificate of insurance before work starts.

How current is this information?

License, bond and comp data were last checked against CSLB on Aug 14, 2026. We recheck it periodically.

How this profile is built

BLDAssure compiles this profile automatically from public records and refreshes it periodically. We don't accept payment to change any record.

License, classifications, bondCalifornia Contractors State License BoardVerified Aug 14, 2026
Workers' compensationCSLB workers' comp recordsVerified Aug 14, 2026

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