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Best Licensed Well Drilling Contractors in Signal Hill, CA

3 well drilling companies registered in Signal Hill hold current CSLB licenses, verified against official records as of August 17, 2026. All 3 are listed below, ordered by workers' compensation cover and years licensed.

How we chose: We identified 3 companies registered in Signal Hill. 3 passed license verification. All 3 are listed below. Our methodology

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  1. 1.A B C Liovin Drilling Inc.

    ✓ CSLB License #422904 - look up this number at CSLB
    Verified
    August 17, 2026
    Licensed since
    1982
    Phone
    (562) 981-8575

  2. 2.J E T Drilling Inc.

    ✓ CSLB License #750885 - look up this number at CSLB
    Verified
    August 17, 2026
    Licensed since
    1998
    Phone
    (562) 988-2849

  3. 3.Gregg Drilling LLC

    ✓ CSLB License #1044456 - look up this number at CSLB
    Verified
    August 17, 2026
    Licensed since
    2018
    Phone
    (562) 427-6899

Compare the top 3 at a glance

CompanyLicenseWorkers' compLicensed since
A B C Liovin Drilling Inc.#422904On file1982
J E T Drilling Inc.#750885On file1998
Gregg Drilling LLC#1044456On file2018

Los Angeles County well drilling licensure at a glance

California licenses contractors by classification and CSLB publishes one on every record, so supply can be counted exactly: 30 active C-57 well drilling licenses in Los Angeles County, 3 of them registered in Signal Hill. CSLB also publishes a real original issue date, which Washington's registry does not, so tenure is measurable here: the median Signal Hill license has been held 28 years, and the longest-standing one dates to 1982. 3 of Signal Hill's 3 licenses (100.0%) carry current workers' compensation cover in CSLB's file. That is employee injury cover, not liability insurance, and a blank usually means an owner-operator with no employees - lawful, and not a mark against anyone. The contractor bond is not a signal here: 30 of the county's 30 licenses carry the same $25,000 bond California sets by statute. 2 county licenses reach their expiration date within the next 90 days. CSLB cannot link straight to a license record, so every listing above shows its number for you to type into CSLB's license lookup. How we verify.

Well Drilling Contractors in Signal Hill: common questions

How many licensed well drilling contractors are there in Signal Hill?

3 active C-57 well drilling licenses are registered in Signal Hill, out of 30 across Los Angeles County. 3 Signal Hill-registered companies passed our license verification, and all 3 are listed on this page. Only licenses CSLB shows as CLEAR and unexpired are listed.

Does California license well drilling contractors?

Yes. California licenses contractors by classification, and C-57 is the CSLB classification that authorises this work. 3 active C-57 well drilling licenses are registered in Signal Hill and 30 across Los Angeles County, the longest-standing issued in 1982. Only CLEAR, unexpired licenses appear here.

How do I check a well drilling contractor's license in California?

Every listing above shows its CSLB license number. CSLB cannot link straight to a record, so open its license lookup and type the number in: it shows status, expiration, the contractor bond and workers' compensation cover, which 3 of Signal Hill's 3 currently carry. 2 Los Angeles County licenses expire within 90 days.

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