Weatherstripping gave me some improvement, but it also made the sashes even tighter in summer. It’s like a game of whack-a-mole: fix one thing, another pops up.
Honestly, I’ve seen weatherstripping backfire more than once, especially with older wood sashes. Sometimes less is more—removing excess paint buildup and sanding just the high spots (not full planing) can ease things up without compromising the fit. Full replacement’s a big leap, but usually not the only way out.
Sometimes less is more—removing excess paint buildup and sanding just the high spots (not full planing) can ease things up without compromising the fit.
Totally agree with this. I battled sticky sashes for years in my 1940s place. Turns out a little targeted sanding and scraping made a bigger difference than any fancy weatherstripping. It’s a balancing act for sure—keep at it, you’ll get there.
Yeah, spot on about paint buildup. I’ve lost count of how many windows I’ve seen where just a few swipes with a sanding block made all the difference—especially around the meeting rails and jambs. Funny thing is, people often go overboard and end up with gaps or loose sashes. Sometimes it’s just a matter of feeling for those sticky spots and hitting them lightly. Also, humidity swings can mess with old wood windows more than folks realize... in summer, everything swells up and you think you’ve got a bigger problem than you really do.
I get what you’re saying about sanding, but honestly, sometimes it’s not just paint or humidity. I’ve run into plenty of old windows where the pulleys or balances are shot, or the frame’s just out of square from settling over the years. You can sand all day and it still won’t slide right if the whole thing’s crooked. Usually ends with me cursing under my breath trying to shim things back into place...
Totally hear you on the frames being out of square. Had a 1930s sash window where
—no amount of sanding fixed it. Ended up pulling the stops and adjusting with thin shims, but it’s still not perfect. Sometimes you just gotta live with a little stickiness unless you want to rebuild the whole thing.“the frame’s just out of square from settling over the years”
Yeah, I’ve run into the same thing with my 1920s place—no matter how much I fiddle with the sashes, there’s always that one corner that just refuses to budge smoothly. I tried planing and even waxing the edges, but the frame just isn’t square anymore. I get what you mean about shims helping a bit, but it’s never perfect. Maybe it’s just old house “character” at this point... unless you wanna go full demo mode, which I definitely don’t. Funny how some windows are fine and others are a constant fight.
I hear you on the “character”—sometimes it feels like these old windows just have a mind of their own. But I’ll say, I’ve actually had some luck with pulling the stops and rehanging the sash cords (assuming they’re still in there). Sometimes it’s less about the frame being out of square and more about those old pulleys or cords being jammed up or frayed. It’s fiddly work, but I’ve seen stubborn windows smooth out after that. Not always a magic fix, but worth a shot before giving up on them as lost causes.
That’s spot on about the sash cords. I’ve found the same—sometimes it’s just a matter of digging out fifty years’ worth of gunk from the pulleys or even just giving the weights a little WD-40. But I’d add: humidity can really mess with old wood, too. In my place, windows that glide in January will stick like crazy by July. A little paraffin wax along the tracks can help, but sometimes you’re just fighting Mother Nature and time.
Humidity’s a beast, sure, but I’d say it’s not always the main villain with sticky windows—sometimes it’s just plain wear and tear. I’ve been in plenty of houses where the wood swells a bit in summer, but if you’re getting major sticking year after year, that could be a sign the frames are out of square or the sashes have warped over time. Wax and WD-40 are quick fixes, but they’re not going to solve a window that’s racked out of alignment.
I’ve seen folks sand down the edges, which can help for a while, but then you risk making the gap too wide once winter dries everything out. Plus, if you overdo it, you’ll start feeling drafts. Honestly, sometimes you hit a point where the old sash just isn’t going to cooperate anymore unless you go all in—pull it out, check for rot, maybe even replace some bits. It sounds drastic, but after dealing with years of sticking, it can be less hassle in the long run.
One thing I’m curious about: have you checked for paint buildup along the tracks? I can’t count how many windows I’ve seen painted shut or gummed up from years of touch-ups. Even a thin layer can make things grind to a halt. Scraping that off can make a bigger difference than any lubricant.
Also—how old are your windows? There’s a big difference between something from the 1920s and one from the ’70s in terms of materials and how they hold up to moisture swings. Sometimes people assume it’s just “old house problems,” but there might be some hidden damage or settling at play.
Anyway, this stuff drives me nuts too… nothing like fighting with a stuck sash when you just want some fresh air.
That’s interesting about paint buildup—I hadn’t really thought about that before. I just bought my first place last fall, and the windows are probably from the late ’60s, so not ancient, but definitely not new either. I noticed some of them are way harder to open than others, even though they all look about the same from the outside. I tried running a butter knife along the seams to see if there was any paint gunked up, but it didn’t seem like much came off. Maybe I’m missing something less obvious?
Has anyone actually tried pulling a sash out themselves? I’m a little nervous about messing with it since I’ve never done more than basic DIY stuff (like tightening cabinet hinges or patching holes). Is it a huge pain or just a matter of patience? I keep reading about “checking for rot,” but what does that even look like? Is it super obvious, or is it more like you have to poke around with a screwdriver and hope for the best?
One thing I’m wondering—if the window frames are out of square, is that something you can fix yourself, or does it usually mean calling in a pro? I don’t really want to start a project that ends up costing a fortune if I mess it up, but at the same time, fighting with these windows every time I want a breeze is getting old fast.
Also, has anyone had luck with those silicone sprays instead of WD-40 or wax? I saw them recommended online, but I’m not sure if they’re actually better or just another thing to buy that won’t work.