California contractor license
PREFERRED ONE PLUMBING
- B General Building
- C36 Plumbing
PREFERRED ONE PLUMBING is a B General Building and C36 Plumbing contractor in Glendora, Los Angeles County, licensed in California for 17 years (since 2009). As of May 28, 2026, the license is active with an expiration date of Jun 30, 2027 on record, a license bond is on file, and permit records show 1–10 permitted projects in the last 3 years.
PREFERRED ONE PLUMBINGB General Building · C36 Plumbing · checked May 28, 2026
ActiveLicense number#934012
Licensed sinceJun 13, 2009
Years licensed17 years
Expiration on recordJun 30, 2027
City and countyGlendora, Los Angeles County
License bondOn file
Projects1–10 permitted projects in the last 3 years
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Source: California Contractors State License Board (CSLB) and City of Los Angeles permit records. Last updated May 28, 2026.