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Windows can’t get sad, but they can weep. This is because water or moisture can can leak into your home through weak spots in the window, and these leaks create what are called “weeping” windows. And if your windows start weeping, you might also: Leaks in your window can cause damage to your home and lead to heating loss, leaving you with repairs to deal with and higher energy costs to pay.

If you discover weeping windows on your home, it could be a sign that the window glaze needs to be replaced. Glaze is a putty that hardens and forms a watertight seal between the panes of glass and the window frame, so when a window needs reglazing–either because the glaze has been worn down over time or because a pane of glass has broken–water and moisture can enter your home through the windows, causing them to weep. While reglazing does take a few hours to complete, it’s not a very complicated process, so giving your windows a fresh coat of glaze is a project that you can do yourself. If you’re getting ready to reglaze your home, take a look at these steps and get started!

Survey the Damage

Start by examining the windows on your home to see if they need reglazing. The most obvious sign you’ll need to reglaze a window is if it has a broken pane of glass, but if not, you’ll want to see if there are any cracks in the existing glaze. A few small, hairline cracks aren’t necessarily cause for alarm, but if you can fit a knife between the cracks or if there isn’t any glaze, then you’ll want to spring into action and reglaze.

Remove the Old Glaze

If it turns out you do need to reglaze, you’ll need to disassemble the window unit. First, undo the window stops that hold the window in place, then remove the window sash (the sliding piece); if the stops are painted in place, use a razor blade to carefully cut them free. Once the sash is out of the frame, you can start removing the old glaze. Use a razor knife or scraper to get it off, but be careful not to shatter the glass. Of course, if you think that your windows contain lead paint, you’ll want to take precautions for that as well.

Check the Frame

Now that you’ve got the frame exposed, make sure that it doesn’t have any serious damage. If you have wooden windows, a two-part wood epoxy should be sufficient for most cracks or areas in need of patching. Also, if it turns out your window’s glass was shattered, you’ll want to replace the panes during this stage.


Get your glazing putty to room temperature and then put it to use! Take a small amount of glaze and roll it into a thin strip, then work that strip into the edge of the window frame. Then, using a knife, push the glaze against the frame and the glass while removing any excess; do this for the entire length of the window frame. Finish by smoothing off the glaze.

Reinstall and Repaint

Once you’ve finished reglazing, reinstall the sash and stops into the window unit. Then, wait a week, and repaint the window and glaze, and you’re done!

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