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Making window locks last longer: my quick fix

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jackclimber
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- Right there with you on skipping the deep clean unless it’s actually needed. I’ve found a little maintenance goes a long way—vacuum, wipe, and a bit of graphite if things get sticky.
- WD-40 is tempting but yeah, it just gums up over time. Silicone spray works in a pinch too, but I still prefer graphite for locks.
- My house is mid-50s and honestly, some of these old window locks are just stubborn no matter what you do. Sometimes “good enough” really is the best you can hope for… especially when there’s yard work waiting.
- One extra thing: every couple years I check for loose screws or wobbly hardware. Tightening those up can save a headache later.


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gandalfseeker921
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You nailed it with the “good enough” approach—sometimes these old locks just have a mind of their own. I’ve tried every trick, from graphite to silicone, and honestly, some of them just refuse to cooperate. Still, I agree, a little attention here and there really does help. Tightening up loose hardware is one of those things that’s easy to overlook but makes a big difference. I used to overthink it, but now I just do a quick check when I remember. It’s not perfect, but it keeps things working... mostly.


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kim_sniper
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I totally get what you mean about overthinking it—I used to spend way too long messing with a stubborn window lock, convinced I could make it perfect. One time I actually took the whole thing apart, only to end up with a spring I couldn’t get back in right. Now I just give them a quick tighten and a little spray when they start sticking. Not flawless, but at least I’m not fighting with the window for half an hour anymore. Some of these old locks just seem determined to be fussy no matter what you do.


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pcloud38
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Old window locks can be a pain, especially if you’re dealing with the older brass or steel ones that have been painted over a dozen times. I see a lot of folks try to get them working perfectly, but honestly, sometimes “good enough” is the way to go, especially if you don’t want to end up with a pile of tiny springs and no idea how to get them back in place. Been there myself—spent half a day on a sash lock that was never quite right again.

A quick tighten and a shot of lubricant (I usually use silicone spray instead of WD-40, since it doesn’t attract as much dust) is usually all you need for routine maintenance. If you do want to take things apart, I’d recommend snapping a few photos of the mechanism before you start. It’s saved me more than once when I’ve gotten distracted and forgotten how everything fits back together.

One thing I’d add: if you’ve got locks that keep sticking even after cleaning and lubing, check for paint buildup or misaligned screws. Sometimes the lock isn’t actually the problem—it’s the window frame swelling up from moisture, or a screw that’s worked itself out just enough to throw things off. Tightening everything down and making sure the lock sits flush can make a bigger difference than you’d think.

If you’re really fed up with a particular lock, replacement hardware isn’t that expensive these days. I’ve swapped out a few on rental properties where the originals just wouldn’t cooperate, and it saved a ton of frustration in the long run.

But yeah, I wouldn’t overthink it. As long as the window closes and locks securely, that’s usually good enough for most folks. No need to chase perfection on something that’s already seen a few decades of use.


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Posts: 9
(@emily_clark)
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I get the “good enough” approach, but I’m not totally sold on stopping there, especially if you’ve got kids or live somewhere break-ins are a concern. I had a lock that seemed fine—closed and latched, no problem—but after a storm, it popped open on its own. Turns out, the old hardware just wasn’t up to the job anymore. Maybe it’s overkill, but I’d rather swap out a questionable lock than risk it failing at the wrong time. Anyone else run into this?


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elizabethj42
Posts: 13
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I hear you—old locks can be sneaky like that. I actually swapped out all my window locks after one literally crumbled in my hand during a windy night. Not just for security, but also because the drafts were killing my heating bill. Sometimes “good enough” just isn’t worth the stress or the wasted energy, especially if you’ve got little ones running around. Upgrading gave me peace of mind and kept my place warmer too.


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yoga471
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That’s a pretty common scenario with older hardware—especially if you’ve got wood windows that have seen some moisture over the years. I’ve run into a lot of folks who don’t realize how much energy loss can trace back to those loose or failing locks. Sometimes it’s not just about the lock itself, but how well the sash fits in the frame. Even a new lock won’t help much if the window’s warped or out of square.

Out of curiosity, did you go with keyed locks or just standard cam locks for your replacements? I’ve seen some people opt for the extra security, but sometimes those are overkill depending on the neighborhood and window type. Also, I’ve noticed some newer locks come with integrated weatherstripping—kind of a two-in-one fix for drafts and security. They’re not always compatible with older frames, though, which can be frustrating.

Just wondering, did you run into any issues with alignment or fit when installing the new ones? Some brands are way easier to retrofit than others...


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