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How To Loosen a Stuck Window

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Red Devil Windo-Zipper - Window Zipper

Red Devil Windo-Zipper

© Red Devil, Inc.
It seems like every old house has at least one window that will not open. Often the problem is that a previous homeowner painted over the windows and frames. With multiple layers of paint, no window will be able to open. But it wasn't until I found the right tool for the job that I was able to open stuck windows with ease.

Warning: this method will free the window, but it will chip away much paint from your window and frame. Use this method only if you intend to re-paint or strip paint from your windows and frame.
Difficulty: Easy
Time Required: 10 Minutes

Here's How:

  1. Obtain a tool called a window zipper. That's the generic word for it. Red Devil, the manufacturer, calls it a Windo-Zipper.

    With its thin blade, it fits right between the window and frame. With its sharp sawtooth edge, it rips right through multiple layers of old paint.

    Buy Direct - Window Zipper - Red Devil Windo-Zipper
  2. In addition to the serrated edge, the Window Zipper has two sharp points at the end. Use one of these sharp points to force the Window Zipper into the crack.
  3. Lightly rip the length of the crack, using only the sharp point. Do this several times with increasing intensity until the point has entered the crack.
  4. Now, begin ripping with the serrated edge--lightly but increasing pressure. When the blade can fit all the way into the crack (at least 1/4"), then you know that this side is free.
  5. Repeat for the other 3 sides of the window.

What You Need

  • Red Devil Windo-Zipper or equivalent

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