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Tri-County-Preferred Garage Door Inc. is the premier provider of commercial garage door sales & services in northern Illinois. We provide great looking, quality Hörmann garage doors & LiftMaster opener products as well as extensive products and parts for commercial overhead doors, commercial openers, dock plates, dock shelters, gate openers, and truck doors.

Tri-County Garage Door installs commercial garage doors as well as commercial garage door openers. We maintain and service all aspects of your door service & installation. Tri-County~Preferred Garage Door can also service & install dock plates, dock shelters, & accessories for all dock levelers. We can service commercial gates and openers, truck doors, and pedestrian doors. Call for estimate!