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MI Windows and Doors

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Gratz, PA
Founded in 1947 by a pair of World War II veterans working out of a Florida aircraft hangar, MI Windows and Doors still manufactures products that proudly feature the innovation, sleek design, and ambient charm that have made our windows and doors popular for 70 years. The care and personal touch that our company’s founders put into their work during the booming postwar years are still evident in our windows and doors today: You could say it’s part of our heritage. MI has operations in Pennsylvania, Texas and Arizona, and features a talented sales team from coast to coast; our products are available in 43 states. We offer beautifully crafted energy-efficient windows and doors in vinyl and aluminum. We have enduring partnerships at all levels of the fenestration industry because we put people first. With MI, homeowners are happy with their choices. Dealers feel great about selling. Builders and architects take pride in their projects. And team members celebrate their accomplishments. Try us and you’ll see: With MI, you experience clarity.

Services Provided

Window Replacement, Window Sales, Window Manufacturer

Areas Served

United States


AAMA Certified NFRC Certified U.S. Green Building Council Member Energy Star Partner 2012 Crystal Achievement Award 2011 BuilderNews Most Efficient Product