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GDC has replaced 1000’s of windows in the Chicago Land area. There are several options when choosing your replacement windows.  Let our window specialists educate you on how to make the best decision for your home.  


Our window installers are certified professionals with decades of experience. All the windows that we install are custom ordered. We offer LOW-E, Argon Gas filled windows. We offer extended warrantees at NO ADDITIONAL COST. All of the window manufacturers we use provide a LIFE-TIME WARRANTY on their windows, *when professionally installed.

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