Homversa
Find. Call. Fixed. - every listing checked against the official license or credential registry for its trade.

Best Licensed Well Drilling Contractors in Santa Rosa, CA

6 well drilling companies registered in Santa Rosa 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 Santa Rosa. 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.Les Petersen Drilling & Pump Inc.

    ✓ CSLB License #261084 - look up this number at CSLB
    Verified
    August 17, 2026
    Licensed since
    1970
    Phone
    (707) 545-0246

  2. 2.Pacific Coast Drilling Company Inc.

    ✓ CSLB License #539855 - look up this number at CSLB
    Verified
    August 17, 2026
    Licensed since
    1988
    Phone
    (707) 778-8316

  3. 3.Clear Heart Drilling Inc.

    ✓ CSLB License #780357 - look up this number at CSLB
    Verified
    August 17, 2026
    Licensed since
    2000
    Phone
    (707) 484-1506

  4. 4.Petersen - Gpm Well Testing And Water Treatment Services LLC

    ✓ CSLB License #985445 - look up this number at CSLB
    Verified
    August 17, 2026
    Licensed since
    2013
    Phone
    (707) 823-4102

  5. 5.Pumpman Norcal

    ✓ CSLB License #1033562 - look up this number at CSLB
    Verified
    August 17, 2026
    Licensed since
    2017
    Phone
    (707) 584-9191

  6. 6.Razo Drilling And Pump Inc.

    ✓ CSLB License #1122070 - look up this number at CSLB
    Verified
    August 17, 2026
    Licensed since
    2024
    Phone
    (707) 280-4958

Compare the top 6 at a glance

CompanyLicenseWorkers' compLicensed since
Les Petersen Drilling & Pump Inc.#261084On file1970
Pacific Coast Drilling Company Inc.#539855On file1988
Clear Heart Drilling Inc.#780357On file2000
Petersen - Gpm Well Testing And Water Treatment Services LLC#985445On file2013
Pumpman Norcal#1033562On file2017
Razo Drilling And Pump Inc.#1122070Exempt or none on file2024

Sonoma 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: 19 active C-57 well drilling licenses in Sonoma County, 6 of them registered in Santa Rosa. CSLB also publishes a real original issue date, which Washington's registry does not, so tenure is measurable here: the median Santa Rosa license has been held 13 years, and the longest-standing one dates to 1970. 5 of Santa Rosa's 6 licenses (83.3%) 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: 19 of the county's 19 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 Santa Rosa: common questions

How many licensed well drilling contractors are there in Santa Rosa?

6 active C-57 well drilling licenses are registered in Santa Rosa, out of 19 across Sonoma County. 6 Santa Rosa-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 Santa Rosa and 19 across Sonoma County, the longest-standing issued in 1970. 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 5 of Santa Rosa's 6 currently carry. 2 Sonoma County licenses expire within 90 days.

Other services in Santa Rosa

Well Drilling Contractors in nearby cities