Contractor License Proof

A-1 Septic Tank Service Inc

Licensed

Verified against CSLB on · View on CSLB

License details

License number
438710
Status
Active
Classifications
C-36 · PlumbingC-42 · Sanitation System
Contractor bond
$25,000
Workers' comp
Covered
License term on file
April 21, 1983 – December 31, 2026

Business

  • (510) 886 4455 (CSLB public record)
  • 1111 INDUSTRIAL PKWY W, Hayward, CA 94544Alameda County

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Frequently asked questions

Is A-1 Septic Tank Service Inc licensed in California?

Yes. A-1 Septic Tank Service Inc holds an active California state contractor license (CSLB #438710), verified against the CSLB public record on June 17, 2026.

What is A-1 Septic Tank Service Inc's CSLB license number?

A-1 Septic Tank Service Inc's California contractor license number is 438710. Look that number up with the CSLB "Check a License" tool to confirm its current status against the public record yourself.

What kind of work is A-1 Septic Tank Service Inc licensed for?

A-1 Septic Tank Service Inc is classified under Plumbing (C-36) and Sanitation System (C-42) by the CSLB.

How do I verify A-1 Septic Tank Service Inc's license myself?

Look up license #438710 with the CSLB "Check a License" tool and compare the status, bond, and workers' compensation details against what's shown on this page. This page reflects the CSLB public record as of June 17, 2026.

Verify it yourself: How to verify a California contractor license · Look up #438710 on CSLB

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See an error in this record? Report incorrect information. Status reflects CSLB data as of the date shown above.