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Contractor Lookout is an independent website, not affiliated with CSLB or the State of California. This record comes from CSLB's public data file dated November 1, 2026 and may be out of date. Not a consumer report under the FCRA.

A-1 Septic Tank Service INC: CSLB License #438710

Source: CSLB public data · Updated November 1, 2026 · Official CSLB record

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The license is active with no suspension on record, though classifications, bonds and secondary flags still deserve a look.

License details

License number
438710
Primary status
CLEAR · what this means
Business type
Corporation
Issued
April 21, 1983 (43 years)
Expires
December 31, 2026
Inactivated
May 1, 2005
Reactivated
December 3, 2010
Classifications
C-36 Plumbing Contractor
C-42 Sanitation System Contractor
Mailing address
1111 Industrial Pkwy W, Hayward, CA, 94544
Phone
(510) 886 4455

Workers' compensation

Type
Leasing Firm, Temp Agency, etc
Insurer
Ace American Insurance Company
Policy number
C73889108
Effective
April 1, 2026
Expires
April 1, 2027

Confirm coverage with CSLB's insurer search. How to check workers' comp.

Contractor's bond

Surety
Western Surety Company
Bond number
62663056
Amount
$25,000
Effective
January 1, 2023

Status history

No changes recorded since we began tracking this license on November 1, 2026. We compare every weekly CSLB file and log changes to status, bonds, workers' comp and classifications here.

Related

Data: CSLB Public Data Portal, file dated November 1, 2026. Status can change at any time. Verify on CSLB's Instant License Check. This site is not a consumer reporting agency under the FCRA; don't use it for employment, credit, insurance or housing decisions about an individual.