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Licensed C-57 well drilling contractor in RIVERBANK, CA. License #1044863. Active. Phone: (209) 968 0104. Website available.

CASTLE WELL DRILLING INC

ActiveLicense #1044863· Verified Active C-57Visit Website
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Contact Information

Address
PO BOX 190RIVERBANK, CA 95367
License Expiry
2026-09-30

License Classifications

C-57

Contractor Bond

Surety Company
WESTERN SURETY COMPANY
Bond Number
67581187
Effective Date
09/20/2025

Workers' Compensation

Coverage Type
Workers' Compensation Insurance
Insurance Company
TECHNOLOGY INSURANCE COMPANY INC
Policy Number
TWC4669057
Effective Date
09/24/2025
Expiration Date
09/24/2026

Frequently Asked Questions

How do I verify a well driller's license?

You can verify any California contractor's license at the Contractors State License Board (CSLB) website: cslb.ca.gov. Enter the license number to see current status, expiration date, bond information, and any disciplinary history. We recommend verifying before hiring.

What is a C-57 license?

C-57 is the California contractor classification for Well Drilling. Contractors with this license are qualified to drill, construct, repair, and destroy water wells. They must pass exams and maintain bond and workers' compensation insurance.

How much does well drilling cost?

Well drilling costs in California typically range from $15,000 to $50,000 or more, depending on depth, geological conditions, site accessibility, and equipment required. Getting quotes from multiple licensed C-57 contractors is the best way to estimate your specific project cost.

Do I need a permit to drill a well?

Yes, a well permit is required before any drilling can begin. Permit requirements vary by county—contact your county Environmental Health or Public Works department for applications and requirements. All drilling must be performed by a licensed C-57 contractor.

How are service areas verified?

Service areas come from the contractor's website and are only trusted after automatic or manual verification. Pending review means extracted coverage is not fully verified yet. We prioritize verified service areas when showing search results.

What should I ask before hiring a well driller?

Ask about their experience in your area, estimated depth and cost, timeline, and whether they handle permits. Verify their license is active at cslb.ca.gov. Check that they have current bond and workers' compensation insurance.