California contractor license
L M HAMM INC
- B General Building
- C20 Warm-Air Heating, Ventilating And Air-Conditioning
- C36 Plumbing
L M HAMM INC is a B General Building, C20 Warm-Air Heating, Ventilating And Air-Conditioning and C36 Plumbing contractor in San Gabriel, Los Angeles County, licensed in California for 68 years (since 1957). As of Nov 5, 2025, the license is active with an expiration date of Oct 31, 2027 on record and a license bond is on file.
L M HAMM INCB General Building · C20 Warm-Air Heating, Ventilating And Air-Conditioning · C36 Plumbing · checked Nov 5, 2025
ActiveLicense number#171598
Licensed sinceNov 13, 1957
Years licensed68 years
Expiration on recordOct 31, 2027
City and countySan Gabriel, Los Angeles 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 Nov 5, 2025.