California contractor license
A-1 SEPTIC TANK SERVICE INC
- C36 Plumbing
- C42 Sanitation System
A-1 SEPTIC TANK SERVICE INC is a C36 Plumbing and C42 Sanitation System contractor in Hayward, Alameda County, licensed in California for 43 years (since 1983). As of Mar 25, 2026, the license is active with an expiration date of Dec 31, 2026 on record and a license bond is on file.
A-1 SEPTIC TANK SERVICE INCC36 Plumbing · C42 Sanitation System · checked Mar 25, 2026
ActiveLicense number#438710
Licensed sinceApr 21, 1983
Years licensed43 years
Expiration on recordDec 31, 2026
City and countyHayward, Alameda County
License bondOn file
ProjectsNone on file
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Source: California Contractors State License Board (CSLB) and City of Los Angeles permit records. Last updated Mar 25, 2026.