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Best Licensed Well Drilling Contractors in Napa, CA

6 well drilling companies registered in Napa hold current CSLB licenses, verified against official records as of August 17, 2026. All 6 are listed below, ordered by workers' compensation cover and years licensed.

How we chose: We identified 6 companies registered in Napa. 6 passed license verification. All 6 are listed below. Our methodology

We earn a fee when you call businesses through numbers on this site. This never affects who is listed or how they rank.

  1. 1.Mc Lean & Williams Inc.

    ✓ CSLB License #396352 - look up this number at CSLB
    Verified
    August 17, 2026
    Licensed since
    1980
    Phone
    (707) 255-6450

  2. 2.Huckfeldt Well Drilling Inc.

    ✓ CSLB License #439746 - look up this number at CSLB
    Verified
    August 17, 2026
    Licensed since
    1983
    Phone
    (707) 255-7923

  3. 3.Oakville Pump Service Inc.

    ✓ CSLB License #744958 - look up this number at CSLB
    Verified
    August 17, 2026
    Licensed since
    1998
    Phone
    (707) 944-2471

  4. 4.D Bess Pump & Well Elect

    ✓ CSLB License #487027 - look up this number at CSLB
    Verified
    August 17, 2026
    Licensed since
    1986
    Phone
    (707) 337-3851

  5. 5.West Coast Well And Pump

    ✓ CSLB License #1089677 - look up this number at CSLB
    Verified
    August 17, 2026
    Licensed since
    2022
    Phone
    (707) 815-3288

  6. 6.Hydros Agritech Inc.

    ✓ CSLB License #1129854 - look up this number at CSLB
    Verified
    August 17, 2026
    Licensed since
    2024
    Phone
    (707) 337-5533

Compare the top 6 at a glance

CompanyLicenseWorkers' compLicensed since
Mc Lean & Williams Inc.#396352On file1980
Huckfeldt Well Drilling Inc.#439746On file1983
Oakville Pump Service Inc.#744958On file1998
D Bess Pump & Well Elect#487027Exempt or none on file1986
West Coast Well And Pump#1089677Exempt or none on file2022
Hydros Agritech Inc.#1129854Exempt or none on file2024

Napa 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: 7 active C-57 well drilling licenses in Napa County, 6 of them registered in Napa. CSLB also publishes a real original issue date, which Washington's registry does not, so tenure is measurable here: the median Napa license has been held 28 years, and the longest-standing one dates to 1980. 3 of Napa's 6 licenses (50.0%) 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: 7 of the county's 7 licenses carry the same $25,000 bond California sets by statute. 1 county license reaches its 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 Napa: common questions

How many licensed well drilling contractors are there in Napa?

6 active C-57 well drilling licenses are registered in Napa, out of 7 across Napa County. 6 Napa-registered companies passed our license verification, and all 6 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. 6 active C-57 well drilling licenses are registered in Napa and 7 across Napa County, the longest-standing issued in 1980. 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 Napa's 6 currently carry. 1 Napa County license expires within 90 days.

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