Why MI EnergyCore™

Find out why the MI EnergyCore™ Window System with AirCell™ PVC frame technology is so energy-efficient, stronger, more secure, quieter, with traditional style.

Best Product 2011

The MI EnergyCore™ Window System won the 2011 BUILDERnews Magazine Best Product Award in the Energy Efficiency category.

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Watch our videos to see how our windows and doors are made, what components go into them, the story behind MI Windows and Doors and more.

Architectural Resources

Design professionals can access the information they need to review, select, and prepare specifications for the MI EnergyCore window system.

Intro Video

Recent News | View All

Tuesday March 26, 2013

MI Windows and Doors at Vision House Tucson Groundbreaking

Tuesday March 12, 2013

MIWD Products Recognized Most Efficient of ENERGY STAR 2013

Thursday January 24, 2013

MI EnergyCore Featured in BASF's BEYOND.High Performance Home

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