Wooden windows won't stay up (pic)


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Old 12-03-23, 08:12 PM
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Wooden windows won't stay up (pic)


We have several windows like this that won't stay at the top. When pushed all the way up, the fall down a few inches. Can you tell by looking at this pic what the issue might be?
 
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Old 12-03-23, 08:18 PM
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That would pretty normal. Those springs are only meant to assist in raising the window, not to keep the window open as far as it possibly can go.
 
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Old 12-03-23, 09:32 PM
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I need to clarify. It's the back sash that won't stay up. I just posted this photo because it showed the jambs.

Any idea why the back one won't stay up on some of them?
 
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Old 12-03-23, 09:37 PM
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Because the springs aren't strong enough to keep it up all the way. Springs get weak. If you want it to stay shut get a couple spring bolts and put them on the sides of the top sash.

Example
 
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Old 12-04-23, 03:49 AM
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As long as the window stays closed when locked I've never worried much about the top sash sagging down.
 
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Old 12-04-23, 10:31 AM
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That spring bolt looks like an adequate fix. So can I assume you drill into each side to the depth of that flange and then the white plastic part holds the window and can spring inward to allow the window to go down?
 
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Old 12-04-23, 10:50 AM
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Installing them would be the trick. You'd pretty much need to remove both existing sashes and springs, because they get hammered in from the outer perimeter of the sash.

If that seems like too much or if you think you might destroy the old window getting it out, just go with a low tech solution. A lock to keep both sashes closed, or a stick cut to the right length to prop the top sash closed.

The latter is pretty common on windows with no locks.
 
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Old 12-04-23, 11:03 AM
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Another idea which I've never done but I'm sure would work... get some 1/2" round magnets, the kind with a screw hole in the middle, and screw them to the top of the sash. If the sash has no edge fin weatherstrip, counterbore a hole so they sit pretty flush. Then drive a steel screw through a washer into the top jamb for the magnet to stick to. One left, one right.
 
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