4000 Series Double Hung

Window World

Double Hung Windows - 4000 Series

The 4000 Series windows from Window World are beautiful as well as remarkably solid, sturdy, and stable. Our beveled mainframe design is exceptionally slim and refined. Their sleek construction easily complements any type of architecture. You will find that 4000 Series vinyl frames will never chip, peel, crack or warp, and are virtually maintenance free. The 4000 Series’ tilt-in sashes make cleaning a pleasure due to our effortless tilt latch.

The ultimate choice for beauty, comfort, and energy efficiency, the 4000 Series windows pay for themselves through lower energy costs, freedom from maintenance, and increased property value. Our impressive Lifetime Limited Warranty delivers the peace-of-mind you would expect from an industry leader.

4000 Series Features

  • Heavy-duty tandem rollers ensure easy, consistent operation
  • Twi-o or -three panel configurations are available

4000 Series Double Hung Technical Details

  • Welded, heavy-duty vinyl construction provides superior strength and durability, while multiple hollow chambers in the mainframe create sealed air spaces for an effective insulating barrier
  • Dual- and triple-pane insulating glass creates a sealed air space, enhanced by our Duralite® warm-edge spacer system for increased efficiency
  • Metal reinforcements at the meeting rail add further stability
  • Push-button vent latches can be released to tilt both top and bottom sashes into the home for easy cleaning
  • An easily removable latching half-screen gives you the freedom to let air in while keeping pests out. Featuring Clarity® mesh—the screen that allows for a clear view, clean lines, and added beauty.
  • Heavy-duty weatherstripping and interlocking sashes help provide extra protection from the elements, especially against dust, dirt, and air infiltration.

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