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How worried should I be about lead paint when swapping out old windows?

137 replies 2,640 views
 
tech_nala
9 posts

Yeah, old houses are like mystery boxes - never quite know what’s lurking behind the next layer of paint or wood. I swapped out my 1938 windows last fall and, let me tell you, the lead paint thing is no joke. I figured I’d just throw on a mask and be done with it, but the amount of dust that ended up everywhere (and I mean *everywhere*) had me regretting not putting up more plastic sheeting. Found some in my coffee maker weeks later. No idea how it got there.

Negative air machines are a pain to set up, but they really do help. I used to think the whole lead protocol was overkill, but after seeing how fine that dust is, I’m on board. Still, I sometimes wonder if I went overboard - my neighbor just opened his windows up and went at it with a crowbar, and he’s still alive... but I’d rather not risk it, especially with kids around.

Anyway, if you’re already thinking about it, you’re ahead of the game. Better safe than sorry, even if it means your living room looks like a scene from E.T. for a weekend.


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17 posts

- Totally get where you’re coming from. Old houses have a way of throwing curveballs, and lead paint is one of those I’d rather not gamble with.
- You’re not alone - when I did my 1927 bungalow, I thought a couple drop cloths would cut it. Nope. Dust found its way into every weird corner, even inside the toaster. Took weeks to feel like we weren’t eating grit.
- The whole “negative air” setup seemed like overkill at first, but once you see how fine that dust is, it’s hard to unsee. Like you said, it’s about peace of mind, especially if there are kids or pets running around.
- Honestly, your neighbor’s approach makes me nervous. Just because nothing happened doesn’t mean it’s safe. Sometimes people get lucky… sometimes not.
- Your caution isn’t overboard - it’s smart. A weekend of plastic and hassle is way better than worrying about long-term health stuff.
- If nothing else, at least you’ve got a good story for anyone who complains about their kitchen remodel... “Did you ever find lead paint dust in your coffee?”


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donald_martin4075
16 posts

Can definitely relate to your hesitation. I used to think people were being a bit dramatic about all the plastic and taping, but after swapping out two windows in my 1918 place, I totally get it now. That dust is sneaky - seriously, how does it end up behind closed cabinets? I’d rather overdo the prep than be paranoid every time someone sneezes. You’re not going overboard at all, just being smart. The peace of mind is worth the hassle, especially if you’ve got little ones or pets around.


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pauls51
41 posts

That dust really is relentless. I thought I’d sealed everything up tight, but after pulling out the old sashes, I found fine dust on dishes inside closed cupboards. It’s wild. I think the extra prep is totally justified, especially in older homes - lead paint’s no joke if you’ve got kids crawling around. Probably worth investing in a good HEPA vacuum too, just for peace of mind.


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simbab39
23 posts

Yeah, that dust is sneaky. I did a window swap in my 1920s place last spring, and even with plastic sheeting taped everywhere, I still found dust on top of the fridge weeks later - how does it even get up there? I’m with you: extra prep’s not overkill, especially if there’s any chance of lead paint. I got a cheap lead test kit just to be sure, but honestly, I half expected everything in this house to set it off.

HEPA vacuums are a game changer for cleanup, but I learned the hard way that not all “HEPA” shop vacs are created equal. My first one just kind of blew the fine stuff around. Ended up borrowing a real one from a buddy who does renovations, and it made a huge difference. If you’ve got kids or pets, it’s worth the hassle (and the weird looks from neighbors when you’re vacuuming your lawn…long story).

One thing I didn’t think about at first was the HVAC system. I forgot to cover the vents, and then every time the heat kicked on, I’d get another round of mystery dust. Might be worth swapping your filters early and often during a project like this.

It’s wild how much extra work it is compared to just popping in a new window in a newer house, but I guess that’s the tradeoff for all the “character” these old places have. Anyone else ever try wet-scraping or is that just asking for trouble?


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15 posts

I’ve wondered about wet-scraping too, but every time I look it up, the warnings about lead dust make me nervous. I get the theory - less airborne particles - but I’d be worried I’d just end up with a sludgy mess that’s still hazardous. Maybe it’s safer than dry sanding, but it still seems risky unless you’re really careful. And yeah, that dust finds its way everywhere... I’m still finding bits from a project months ago.


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language381
29 posts

I totally get the nerves about lead dust - when I swapped out our 1950s windows last spring, I was convinced I’d turn the whole house into a hazmat zone. Wet-scraping sounded good in theory, but yeah, it’s messy. I tried it on one window and ended up with a goopy pile of paint chips and water that looked like something the dog dragged in. Still, it definitely kept dust down compared to dry sanding, which basically turns everything within a ten-foot radius into a snow globe of toxic particles.

Here’s what I did: laid down plastic sheeting, taped it up around the window, then used a spray bottle to keep everything damp as I scraped. Wore a mask and gloves. The cleanup was gross, but easier to bag up and toss than chasing dust bunnies for months. Honestly, it felt safer, just a pain to do.

Still found random flakes behind the couch a month later... so maybe there’s no perfect way unless you hire pros or have a magic vacuum. But wet-scraping felt like the lesser evil for me.


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14 posts

- Wet-scraping’s definitely safer than dry sanding - less dust, but yeah, it’s a mess.
- Plastic sheeting and taping off the area is a must. I’ve seen folks skip that and regret it.
- Respirator (not just a dust mask) is worth it if you’re doing more than one window.
- Vacuum with a HEPA filter helps, but honestly, flakes still sneak into weird spots. It’s just how it goes in old houses.
- If you’ve got kids or pets, extra caution’s smart. Sometimes pros are worth the cost just for peace of mind.
- No perfect method, but what you did covers the basics. Just takes patience... and a lot of trash bags.


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brobinson33
17 posts

- You’ve got the right attitude - lead paint’s a headache, but you’re handling it like a pro.
-

“No perfect method, but what you did covers the basics. Just takes patience... and a lot of trash bags.”
Couldn’t agree more. The basics go a long way, especially if you’re not cutting corners.
- Wet-scraping really does make a difference with dust. It’s messier, but I’d take that over airborne lead any day.
- Taping off and sheeting is huge. I’ve seen folks try to “just be careful” without it, and they always end up chasing flakes into the next room for weeks after.
- Respirator is a must if you’re doing more than just popping out a sash or two. Those paper masks don’t cut it - learned that one the hard way back in my apprentice days.
- HEPA vacs are great, but yeah, there’s always some rogue chips hiding out. I usually do a second sweep the next day just to be safe.
- If you have kids or pets around, your caution is spot on. Sometimes paying for pros is worth it just so you can sleep at night knowing it’s done right.

Honestly, swapping windows in old houses is always a bit of an adventure. But from what you’ve described, you’re being thoughtful and thorough - most folks miss half those steps. It’s never going to be spotless (old trim loves to hide stuff), but your process is solid.

One thing I’d add: after everything’s done and cleaned up, I like to wipe down surfaces again with a damp cloth just in case. Amazing what turns up even after vacuuming.

You’re doing all the right things. Don’t let the horror stories online freak you out too much - being careful goes further than people think. The mess is temporary... new windows are forever (well, almost).


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15 posts

I’ve swapped out a few old windows where the lead paint was layered on thick. Wet-scraping kept the dust down, but I still found chips hiding in the oddest spots days later. HEPA vacs help, but I never trust just one pass either. Honestly, patience and double-checking are what saved me from a bigger headache.


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