Ace Furnace Company Inc.

Ace Furnace Company Inc. is a South San Francisco, California HVAC company holding CSLB license #235989, verified against state records, licensed since 1965.

License verification

License-Verified

CLEARCSLB #235989(C20)
Original license date
1965-07-12
Expires
2027-09-30
Insurance through
2026-08-21 (CONTINENTAL CASUALTY COMPANY)
Last verified 2026-08-17 · Verify at the state registry
Verification history
1. 2026-08-17 · checked against the state file · status: CLEAR

Contact

Phone: (415) 661-8000
Address: P O BOX 295, South San Francisco, CA 94083

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