Double Hung Windows

A double hung replacement window is one that’s made with both an upper and lower sash. Both of these sashes slide past each other in a single casement. Double hung windows are the traditional styles of windows and are easily recognized by their classic look.

DHMulledBetween the two sashes, which are built into double hung windows, the lower sash is attached in front of the one located at the top. The upper and lower sashes of double hung windows can are typically made with a solid pane of glass. They can be made with built-in “muntins” or “grids,” which are used to give the appearance they are divided into separate lights.

Two grooves are made onto the side jambs of the window to allow both the upper and lower sash to slide independently. You have the option of ordering your double hung windows with a full window screen that allows for full ventilation while half screens come standard as this is the screen that is most popular.

Pictured here are 2 double hung windows with grids in both the upper and lower lights. They have been “mulled” together to fit the 2 windows in the one opening.

If you decide to have double hung windows as your replacement windows, here are some of the advantages that you can get from them:

  1. One of the reasons why they’re a popular choice for a lot of people is because the amount of ventilation that they can provide which is half of their entire size.
  2. They are energy efficient. They also provide protection against ultraviolet light and their sashes tilt inward which make it a lot easier for them to be cleaned as this allows for the entire window to be cleaned from the inside of the house.
  3. They come in versatile vinyl frames that can be factory painted or veneered to offer infinite design possibilities and a classic look.
  4. They are very durable (in fact they come with a lifetime warranty) and are also easy to use.



  • 7/8” insulated glass
  • Intercept spacer system
  • Fusion welded frames and sashes
  • All windows double strength glass
  • Full 3 ¼” frame thickness
  • Electrostatic coated fiber glass screens



  • Triple Pane
  • Self Cleaning Glass
  • Wood Grain Laminates (on certain models)
  • Full screen
  • Grids-contoured and flat
  • Obscure glass
  • Tempered glass
  • Tinting (limited factory tint available)
Color and Laminate Option from Zen Windows



Take a closer look at the color,
woodgrain and grid options for
replacement windows here.