MI Windows and Doors, Inc. - The Replacement Windows for Dummies Manufacturer Profiles

Written by bprescottMarch 30, 2012

MI Windows and Doors, Inc.

Gratz, Pennsylvania



MI Windows and Doors, Inc. is one of the nation's largest suppliers of vinyl, aluminum and composite windows and doors. With plants across the country, MI offers a broad spectrum of windows and patio doors–backed by exemplary customer service. Having kept the focus on people as its greatest asset, MI continues to manufacture quality windows and doors under the respected brand. MI products serve distributors, architects, builders, remodelers, and homeowners alike. MI Windows and Doors continually strives to improve and the company’s promise is their commitment to “Seeing You Through”.


MI Windows and Doors produces energy efficient windows and patio doors for the new construction and replacement markets across the U.S. 

Product lines include: 

  • BetterBilt
  • Regalview
  • Builder Series
  • StormArmor
  • HomeMaker II
  • Designer Series
  • MI EnergyCore
  • XACT
  • CertainTeed 


MI Windows and Doors recently launched the MI EnergyCore Window System, a complete line of traditionally styled windows designed for optimal energy efficiency and high performance. Available in the western U.S., MI EnergyCore was selected by Builder News Magazine as the best energy efficient product for 2011. 

The window system uses AirCell PVC technology, a patented, 100 percent recyclable material that is co-extruded and thermally bonded into the frame.  A standard dual pane, EnergyCore Window meets the proposed Energy Star 2013 standards in all zones.  When upgraded to triple pane glass, the system meets the Department of Energy R-5 standards in all styles and in any configuration. 

The high performance frame uses truss internal webbing which maximizes the torsional and in-line strength.  All styles achieve an AAMA Performance Grade of LC-40 and can comfortably support the added weight of triple pane glass.  

MI EnergyCore Windows can be upgraded with TMAX SQS Laminated glass.  Laminated glass adds increased safety, sound control, and UV protection.   Laminated glass is highly break resistant, reduces sound transmission up to 50%, and blocks 99% of the UV light that causes fading of interior floors and furnishings, all without compromising energy efficiency or clarity. 

MI EnergyCore Windows are available in a patented, thermally fused, SuperCapSR exterior acrylic cap bronze color that reflects 76% of the infrared light thereby preventing heat build-up on the frame. 

The MI EnergyCore Window System’s unique design results in a more energy efficient, secure, stronger, and quieter window with traditional style.  See www.MIEnergyCore.com for more information.



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