rest assured that we've got your back

Warranty for V2000, V3000, A1000, and A4000 Series

View our warranties for V2000 Series, V3000 Series, A1000 Series and A4000 Series windows and patio doors. 

industry-leading warranties for peace of mind

Warranty for V4000 Series and V5000 Series

Warranty details for our V4000 Sunrise Series, V4000 Sunrise Series - Vanguard, and V5000 Restorations Series windows and patio doors. 

Backed With Confidence

MI products are backed by an industry-leading Lifetime Limited warranty. Rest assured that if you have an issue with your windows or doors, we've got your back. 

Find My Warranty

As our business has grown over the years, our product options and warranties have evolved. We make it easy to locate the warranty specific to your MI windows and patio doors. 

Warranty Registration

Registering your warranty simplifies your service experience, should you ever require it.

DIY Resources

For immediate guidance on common window and patio door fixes, visit our DIY Resource Library.