Double Hung Windows - 4000 Series

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

  • Fusion-welded sash & mainframe adds strength and rigidity.
  • Fully extruded lift rail adds strength, durability, and ease of operation.
  • Hidden screen track produces clean lines and added beauty.
  • Heavy-duty weatherstripping and interlocking sashes help to provide extra protection from the elements.

4000 Series Double Hung Technical Details

  1. Vinyl frames and sashes will never chip, peel, crack or warp, Made tough and solid with virgin vinyl (PVC) resin, their color is formulated throughout, so the beautiful luster lasts.
  2. Dual and triple-pane insulating glass creates a sealed air space, enhanced by our Duralite® warm-edge spacer system for increased efficiency.
  3. Interlock at sash meeting rails adds to your sense of security, comfort, and well-being.
  4. Protective bulb seal helps to prevent air infiltration at the meeting rail.
  5. Drop-in glazing for extra protection from the elements.
  6. Fully extruded lift rails provide strength and stability for easy operation.
  7. Sloped sill forces water to drain to the exterior of the window, directing water away from your home.
  8. Featuring Clarity® mesh, the screen that allows for a clear view, clean lines, and added beauty.
  9. Heavy-duty weatherstripping and interlocking sashes help to provide extra protection from the elements, especially against dust, dirt, and air infiltration.

Additional Features

  • Fusion-welded frames and sashes add strength and rigidity.
  • Dual ventilator locks provide a safe, secure way to keep windows open for proper ventilation.
  • Full balance covers help protect against air infiltration while adding a finished look to the window frame.
  • Heavy-duty tandem rollers eliminate sash cords, weights, and pulleys. You’ll benefit from smooth, comfortable fingertip operation.
  • Tilt-in top and bottom sashes make cleaning safe and easy from inside the home.
  • Double barrier-fin weatherstripping at sash sides help keep out dirt and noise, and protect against air infiltration.
  • Beveled exterior profile gives windows a clean, elegant look.

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