Whether your preference is traditional, contemporary – or somewhere in between – the crisp, clean lines of Performance Series windows are sure to complement any design.

Choose from
  • single-hung
  • double-hung
  • sliding
  • casement
  • picture
  • custom shapes
  • patio doors.

Then customize with mulled units, round tops or grids. GMI offers virtually limitless options so that you can create your own look.

Windows are custom-made to fit your current window openings precisely.
Call for a quote (216) 386-0950
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