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How To Fix Sagging Windows


Sagging windows are a common issue in homes with vinyl windows. So, what can you do about it? In this blog post, we’ll explain what causes windows to sag and offer some basic DIY fixes for sagging windows before you call a professional.

What Causes Windows To Sag?

Large picture window with sliding windows on either side, in a large living area.Here are the most common causes of sagging windows:

  • Improper installation: If even one corner is no longer at 90 degrees, the frame may be out of square. We often see improper installation with vinyl windows, which gradually leads to sagging.
  • The sash is out of square: An older sash could be the culprit for this one. Proper glass blocking is essential for holding the sash rigid with 90-degree corners.
  • The sash isn’t held square in the frame: This issue typically occurs with bow, bay and casement windows, since the hinges are on one side. The window may be impossible to mount perfectly square in the frame if the top and bottom hinges aren’t precisely located.
  • The sash is settling: Every now and then, a homeowner experiences sash settling with their windows. Though it’s most prevalent with casement windows, sash settling can occur with other window types.

Best Ways To Fix Sagging Windows

Consider these quick fixes for sagging windows:

  • Reset the windows: You’ll locate and remove the sash, find the balance shoe, locate the tilt pin and unlock the balance shoe. Next, reset the pin and adjust the lower sash to reset the window. As long as your window stays in place after moving it up and down, you should be set.
  • Replace the balance shoe: An old or broken balance shoe can also cause sagging windows. You may need to replace it to restore proper functionality.
  • Use Lbrackets: One of the most effective temporary fixes is to add support to your sagging windows with L-brackets.

While these tips may seem straightforward, we always recommend calling a professional for assistance.

DIY window repairs can easily result in further damage. If you want normal operation and higher energy efficiency with your windows, play it safe and contact an expert for window replacement or repair.

Trust Us for Window Repair & Replacement in Indianapolis & Muncie

At Overhead Door Co. of Indianapolis & Muncie, we’re more than just another home service company. Our skilled team has you covered with garage door service, window and door installation, insulation and commercial services. You can count on us for unmatched integrity and expertise every time.

We proudly specialize in window replacement. We’ll inspect your sagging windows to determine if a replacement is necessary. If it is, we’ll discuss all your options, including the best windows from American Window and Great Lakes Window.

Call 317-489-0825 for window replacement in Indianapolis or 765-215-2932 to schedule window replacement in Muncie.

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