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.

Technical Information

Check out the latest technical information and test reports that are available on  MI EnergyCore™ windows and patio doors.

Frame Advantages

The MI EnergyCore™ frame is much more energy efficient:

  • 6X Better than fiberglass
  • 4X Better than rigid PVC
  • 3X Better than wood

Dealer Program

Interested in becoming a dealer? We are looking for window and door professionals who like to save their clients' money with energy efficient windows and doors.