California contractor license
ACE FURNACE COMPANY INC
- C20 Warm-Air Heating, Ventilating And Air-Conditioning
ACE FURNACE COMPANY INC is a C20 Warm-Air Heating, Ventilating And Air-Conditioning contractor in South San Francisco, San Mateo County, licensed in California for 61 years (since 1965). As of Aug 21, 2025, the license is active with an expiration date of Sep 30, 2027 on record and a license bond is on file.
ACE FURNACE COMPANY INCC20 Warm-Air Heating, Ventilating And Air-Conditioning · checked Aug 21, 2025
ActiveLicense number#235989
Licensed sinceJul 12, 1965
Years licensed61 years
Expiration on recordSep 30, 2027
City and countySouth San Francisco, San Mateo 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 21, 2025.