ADU CITIES Contractor Directory

Fastech Critical Power

Also listed as: Fastech Critical Services Inc

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

CSLB license#1146293
ClassificationsC-10 — Electrical
Office of record3200 Guasti Road Ste 100
Ontario, CA 91761
Address as listed in the CSLB record — the office of record, not a service-area claim.
Phone (CSLB record)(800) 390-5185
Contractor bond$25,000 — American Contractors Indemnity Company
Workers' comp (CSLB record)Workers' Compensation Insurance — Berkshire Hathaway Direct Insurance Company
Business typeCorporation
License issuedNovember 14, 2025
License expiresNovember 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.