Backed with Confidence

Warranty Information

MI Windows and Doors, LLC stands behind its MI and General Aluminum branded products with a Limited Lifetime Customer Assurance Warranty. If you have a problem with your windows or doors you can review your warranty below.

In order to make a warranty claim, you'll need the information from your identification labels on your windows. See the information on the Identification Labels page.

Current Warranties

Replacement Product Warranty (Eastern and Southern Regions) (pdf)
Limited lifetime product warranty for replacement products manufactured in Gratz, Pa, Hegins, Pa, and Flower Mound, TX.
Download (197 KB)
Glass Breakage Warranty (Western Region) (pdf)
Limited lifetime glass breakage warranty for new construction and replacement products manufactured out of Prescott Valley, AZ.
Download (176 KB)
Product Warranty (Western Region) (pdf)
Limited lifetime product warranty for new construction and replacement products manufactured out of Prescott Valley, AZ.
Download (197 KB)
Glass Breakage Warranty (Eastern and Southern Regions) (pdf)
Limited lifetime glass breakage warranty for 1600 and 1500 Series products manufactured out of Gratz, Pa., Hegins, Pa., and Flower Mound, TX.
Download (177 KB)
New Construction Product Warranty (Eastern and Southern Regions) (pdf)
Limited lifetime product warranty for new construction products manufactured out of Gratz, Pa., Hegins, Pa., and Flower Mound, TX.
Download (198 KB)

For products manufactured from January 2010 to July 2016, please visit our Prior Warranties page.

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With the combination of our devoted team members and our quality, versatile products, MI is one of the leading manufacturers in the industry.