Installing new vinyl replacement windows begins with proper measurement. There are four measurements involved width, height, square and level..Full Window Replacement. When doing a full window replacement, the existing frame is completely removed and the new window placed into the rough opening that was occupied by the old window..At Zen Windows of St. Louis we install high quality replacement windows doors | NO money down, NO pushy salesmen, and FAST same day quotes online!.Replacement Window Measuring Guide To determine the size of window you will need, follow these simple steps Determine whether or not you are simply replacing the operating portion or the entire window unit including the frame..
Replacing your windows? We ll show you how to measure your existing windows to find the size you need..