Cal Steam Company

Also listed as: C S D M Inc

● Active — license status verified against CSLB public data as of November 6, 2026

CSLB license	#674646
Classifications	C-20 — Warm-Air Heating, Ventilating and Air-Conditioning · C-36 — Plumbing · C-4 — Boiler, Hot-Water Heating and Steam Fitting
Office of record	1142 S Diamond Bl #169 Diamond Bar, CA 91765 Address as listed in the CSLB record — the office of record, not a service-area claim.
Phone (CSLB record)	(213) 798-4693
Contractor bond	$25,000 — Western Surety Company
Workers' comp (CSLB record)	Workers' Compensation Insurance — Florists Mutual Insurance Company
Business type	Corporation
License issued	July 22, 1993
License expires	April 30, 2027

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Data source: CSLB public records as of November 6, 2026. License status can change at any time — verify live at CSLB before signing a contract.