California contractor license
ALTON AIR CONDITIONING & HEATING INC
- C20 Warm-Air Heating, Ventilating And Air-Conditioning
ALTON AIR CONDITIONING & HEATING INC is a C20 Warm-Air Heating, Ventilating And Air-Conditioning contractor in Fremont, Alameda County, licensed in California for 39 years (since 1987). As of Aug 10, 2026, the license is active with an expiration date of May 31, 2027 on record and a license bond is on file.
ALTON AIR CONDITIONING & HEATING INCC20 Warm-Air Heating, Ventilating And Air-Conditioning · checked Aug 10, 2026
ActiveLicense number#511296
Licensed sinceMay 29, 1987
Years licensed39 years
Expiration on recordMay 31, 2027
City and countyFremont, 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 Aug 10, 2026.