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Grey Diamond Heating And Cooling INC. has been operating in Chicago since 2023 (~3 years). They currently hold 1 active license across 1 location in CLEARING.
Primary activity: Heating, Ventilation and Air Conditioning Services - Residential (HVAC / Mechanical).
Most recent activity: renewal on 2025-07-11.
One row per license event since 2020. Tap any row for the full record. A renewal with no issuance below it points to a license first issued before our 2020 coverage window.
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