California contractor license
A1 BACKFLOW SERVICE INC
- C-61 / D64 Backflow Prevention Devices
A1 BACKFLOW SERVICE INC is a C-61 / D64 Backflow Prevention Devices contractor in Manteca, San Joaquin County, licensed in California for 10 years (since 2016). As of Jan 7, 2026, the license is active with an expiration date of Feb 29, 2028 on record and a license bond is on file.
A1 BACKFLOW SERVICE INCC-61 / D64 Backflow Prevention Devices · checked Jan 7, 2026
ActiveLicense number#1012406
Licensed sinceMar 25, 2016
Years licensed10 years
Expiration on recordFeb 29, 2028
City and countyManteca, San Joaquin 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 Jan 7, 2026.