Replacement Window History

Windows have been around a long, long time. Originally just holes in a wall, or cave, to let light in, smoke out and provide a safe view of who might be coming to your door (friend or foe), they weren’t particularly adept at keeping the weather out of your humble abode or luxurious castle.

The invention of transparent glass created what we know today as a window. Originally only available to the very wealthy and custom crafted for every opening, the original windows bore very little resemblance to the windows we know today.

Over time, a number of standard styles have emerged and remain with us today. Here’s an overview of the most common styles of replacement windows available today.


Renewal by Andersen of Long Island Double Hung WindowDouble-Hung Windows

Perhaps the most traditional of window styles, the Double Hung window features a top and bottom “sash” or frame that holds the glass pane or panes. In the Double Hung, both sashes move laterally to provide ventilation. There is also a variation known as the Single-Hung window, where only the bottom sash moves and the top sash remains fixed to the window frame.

Most commonly, Double and Single Hung Windows have equal sized sashes, but there are other variations in which the top and bottom sashes are either larger or smaller than the other. The most common of these has the bottom sash a larger height than the upper, sometimes called Cottage Windows.


Triple-Hung Windows

Not nearly as common as the Double Hung window, some very large vertical openings utilize a variation of the Double Hung, known as the Triple-Hung. As its name implies, these windows have three sashes.


Renewal by Andersen of Long Island Casement WindowCasement Windows

The casement window is similar to a small version of the swing doors we use every day. In this style, rather than a sash that slides up and down. The sash is hinged on one side and opens and closes like a door. Most Casement windows use a crank to open and close the window securely. A closely related relative of the Casement is the Push Out window, which doesn’t use a crank, but, as its name implies, is simply pushed out to open and pulled in to close. Not as convenient as the traditional, crank-operated Casement Window, the Push Out also has the disadvantage of not being able to be fitted with insect screens, as these would interfere with the pushing and pulling (opening and closing) of the window.


Renewal by Andersen of Long Island Sliding Window Gliding WindowHorizontal Sliding Windows

The Horizontal Sliding Window, also known as a Slider or Gliding Window, is similar to another door type with which you’re likely familiar, the sliding patio door. As its name implies, this window is operated by sliding the sash to one side to open and pulling it back to close. Most commonly made with two sashes, like a Hung Window (turned sideways) Horizontal sliding windows can have one sash that operates, or slides, or both. These are known as Single Sliding Windows or Dual Sliding Windows respectively. Horizontal Sliders can also be made with three sashes, known as a Triple Sliding (or Gliding) Window.