A-1 Septic Tank Service Inc

Certified septic pumping company · Hayward, CA · Alameda County

Certification status

Listed in the CSLB Licensed C-42 Sanitation System Contractors as of 2026-07-23 — verify current status at the official source

Certification categories

Installer (C-42)

License / registration #

438710

Location

1111 Industrial Pkwy W, Hayward, CA, 94544

Phone (from public registry)

(510) 886-4455

This profile is compiled from public registry records. It is not an endorsement, and The Septic Directory has no business relationship with A-1 Septic Tank Service Inc unless noted. Is this your company? Claim or correct this listing — it's free.

What septic pumping certification means

California licenses septic and sanitation system contractors under the C-42 (Sanitation System) classification through the Contractors State License Board; by law the board does not publish contractor email addresses.

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