Ace Furnace Company INC, C-20 HVAC Contractor in South San Francisco, CA
Ace Furnace Company INC operating as a corporation holds an active California contractor license (CSLB #235989), valid through Sep 30, 2027. First issued in 1965, the license has been on the CSLB roster for 61 years. It carries a single CSLB classification: C-20 — HVAC Contractor. Records show an active surety bond on file with American Contractors Indemnity Company and active workers' compensation coverage from Continental Casualty Company. The business is based in South San Francisco, in San Mateo County, California.
- License Number
- 235989
- Issued
- Jul 12, 1965
- Status
- CLEAR
- Expires
- Sep 30, 2027
- Entity
- Corporation
- Surety
- American Contractors Indemnity Company
- Bond Number
- 100232559
- Effective
- Jan 1, 2023
- Status
- Active
- Coverage
- Workers' Compensation Insurance
- Carrier
- Continental Casualty Company
- Policy Number
- 8035628062
- Effective
- Aug 21, 2025
- Expires
- Aug 21, 2026
This contractor is verified, with no adverse conditions in the current CSLB record.
An automated summary of public CSLB data, not a credit score, rating, or endorsement. How we determine this
Is Ace Furnace Company INC licensed in California?
Yes. Ace Furnace Company INC holds California Contractors State License Board license number 235989, which is active and in good standing. The license was first issued on July 12, 1965. It is valid through September 30, 2027.
What does Ace Furnace Company INC specialize in?
Ace Furnace Company INC is licensed for one CSLB classification: C-20 HVAC Contractor.
Where is Ace Furnace Company INC headquartered?
Ace Furnace Company INC is headquartered at P O Box 295, South San Francisco, CA 94083, in San Mateo County, California.
Does Ace Furnace Company INC have an active surety bond on file with CSLB?
Yes. Ace Furnace Company INC has an active California contractor surety bond filed with American Contractors Indemnity Company.
Does Ace Furnace Company INC carry workers' compensation coverage?
Yes. Ace Furnace Company INC carries active workers' compensation coverage through Continental Casualty Company.
How do I verify Ace Furnace Company INC's contractor license?
You can verify Ace Furnace Company INC's license directly with the California Contractors State License Board at https://www.cslb.ca.gov/OnlineServices/CheckLicenseII/LicenseDetail.aspx?LicNum=235989.
- License issuedJul 12, 1965
- Bond activeJan 1, 2023
- WC coverage startsAug 21, 2025
- WC expiresAug 21, 2026
- License expiresSep 30, 2027
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