Why is outside noise STILL getting through my windows?

I’ve always wondered if people underestimate how much noise actually travels through walls themselves, not just the gaps. We talk a lot about sealing doors and windows, but some of these old plaster walls are basically echo chambers. Has anyone tried adding mass-loaded vinyl or extra drywall layers to tackle that? I’m skeptical it’s worth the hassle unless you’re already renovating…

Definitely hear you on the old plaster walls - mine are from the 1940s and, honestly, I was shocked how much sound they let through even after I’d weatherstripped every window and door. I always figured the gaps were the main culprit, but turns out, some of these walls are just thin and hollow.

I did look into mass-loaded vinyl (MLV) when I was redoing my living room, but I’ll admit, it’s a bit of a project if you’re not already tearing things apart. Here’s what I found after way too many hours of research and a couple chats with contractors:

1. **Adding MLV**: You’ve got to take off the old drywall or plaster, tack up the MLV (it’s heavy and awkward), then put new drywall on top. It works best when you can seal around the edges, too. The improvement is real, but it’s not night-and-day unless you do the whole wall.

2. **Extra Drywall (Double Layering)**: This is a bit easier and cheaper than MLV. Just screw a second layer of drywall right over the first one with some Green Glue in between (acts as a dampener). It does help, especially for voices and TV noise, but again, it’s a big hassle if you’re not already renovating.

3. **Bang for the Buck**: If you’re just trying to cut down general street noise and not building a home studio, honestly, I’d focus on windows first - especially if yours are single-pane or old wood frames. Heavy curtains help some too. The wall upgrades are more like “while you’re at it” jobs.

I get being skeptical. I went all-in on one room and left the others alone, and it’s definitely quieter, but not silent. Worth it if you’re gutting anyway, but I wouldn’t tear into perfectly good walls just for that unless the noise is driving you nuts.

Good point about echo chambers, though - sometimes just filling cavities with insulation (like mineral wool) can help a surprising amount. Not a miracle fix, but less invasive than full-on drywall surgery.

Curious if anyone’s tried those “soundproof” paint products? Seemed gimmicky to me, but maybe I’m missing something...

I actually tried that “soundproof” paint in my old apartment - honestly, it was about as effective as painting the walls with yogurt. Maybe a tiny difference for high-pitched sounds, but street noise and bass still came right through. Heavy curtains made more impact for me.

“honestly, it was about as effective as painting the walls with yogurt.”

That cracked me up. I had a similar letdown with “soundproof” window film - looked promising online but didn’t do much for actual noise. Heavy curtains, like you mentioned, made the biggest difference for me too. I live near a busy road and tried layering blackout curtains over regular ones. It’s not total silence, but way better than before.

I also noticed a lot of noise sneaks in through little gaps around the window frames. I used some weatherstripping tape (the cheap kind from the hardware store) and it helped more than I expected. Not perfect, but every bit counts. Still, low bass from trucks is just relentless… haven’t found anything that really stops that except maybe moving to the woods.

Anyone else try those double-pane window inserts? Heard mixed things, but haven’t taken the plunge yet.

Still, low bass from trucks is just relentless… haven’t found anything that really stops that except maybe moving to the woods.

Low-frequency stuff is brutal - physics just isn’t on our side there. I did try those acrylic double-pane inserts in my last place (old 1950s windows), and they helped with general street noise, but honestly, the bass still rumbled through. They’re decent for mid-high frequencies, though, and they cut drafts too. Not a miracle fix, but better than films or just curtains alone. If you’re fighting trucks, it’s more about mass than layers... which gets pricey fast.

Totally get this - my house is right on a bus route and those low rumbles just sneak in no matter what. I tried adding heavy blackout curtains and even stacked up bookshelves along the wall (not pretty, but hey…), and it barely made a dent in the bass.

If you’re fighting trucks, it’s more about mass than layers... which gets pricey fast.

Couldn’t agree more. I looked into adding a second layer of drywall with Green Glue, but the cost and hassle stopped me. For now, I just use a white noise machine at night - it helps a bit, but not magic. Drafts are gone, though, so there’s that small win.

Yeah, those low rumbles are relentless. I’ve tried weatherstripping and caulking every gap, which helped with drafts (and my energy bill), but didn’t do much for the bass either. Mass really is king, but man, it’s not cheap or easy. Sometimes I wonder if triple-pane windows would actually help, but I’m not convinced they’d be worth the cost for just noise.

Man, I totally get you on the bass - those low frequencies just go right through everything. I swapped out my old single panes for double-pane a few years back, and honestly, it made a difference for regular noise but not much for the deep rumbles from trucks. I looked into triple-pane too, but the price tag made me wince. Sometimes I wonder if it’s just the walls and not the windows at all…

Yeah, I’ve been down that rabbit hole too. Upgraded to double-pane thinking it’d be a magic fix, but those low-frequency truck rumbles just laughed at my investment. Turns out, bass loves to travel through solid walls and even floors - my buddy joked my drywall might as well be tissue paper. I read somewhere that mass-loaded vinyl helps, but honestly, who wants to line their living room with that? At this point, I’m convinced unless you live in a concrete bunker, bass will always find you…

Funny you mention the “concrete bunker” thing - my neighbor actually redid his entire basement with extra drywall layers and green glue, thinking it’d fix the rumble from the street. Helped a bit, but those low frequencies still sneak in. I sometimes wonder if the weak point is actually the window frames or maybe even the gaps around them, not just the glass itself. Has anyone tried sealing up those little cracks or using heavier curtains? Curious if that made any real-world difference.

I sometimes wonder if the weak point is actually the window frames or maybe even the gaps around them, not just the glass itself.

You’re onto something there. In my experience, it’s rarely just the glass. Those little gaps around the frame can act like tiny subwoofers, letting the bass rumble sneak in. I’ve tried sealing with acoustic caulk - definitely helps, but don’t expect miracles. Heavy curtains might muffle higher frequencies, but for low-end stuff, you’d need something dense and sealed tight. Sometimes, even the wall around the window flexes and passes sound. It’s like chasing leaks in a boat - you plug one, another pops up.

Man, I hear you on the window frame thing. I used to blame the glass for everything, but after a couple nights of feeling like the neighbor’s subwoofer was parked in my living room, I started poking around with a flashlight and my hand to find drafts. Turns out, there were gaps around my window frames big enough to slide a credit card through. No wonder it sounded like I was living inside a drum.

Tried the acoustic caulk trick too - honestly, it helped a bit, but didn’t totally fix it. The weirdest part? The wall right under the window seemed to vibrate when trucks rolled by. I guess drywall isn’t exactly soundproof, especially in these older houses where everything flexes if you sneeze hard enough.

I also tried those “soundproof” curtains everyone raves about online. They’re thick and look nice, but if you’re dealing with actual bass or traffic noise, they’re more like a nice blanket for your window than a real barrier. Helped with some echoes though.

At this point, I’m convinced the only real solution is ripping out the whole thing and getting one of those triple-pane units, sealed up tighter than a submarine hatch. But then again… I’d probably still hear the neighbor’s dog barking at 6am. Maybe it’s just part of city living? Or maybe my house is just extra leaky. Either way, chasing noise leaks feels like playing whack-a-mole - just when you think you’ve found the culprit, another one pops up somewhere else.

I get where you’re coming from with the urge to just rip out the windows and go full submarine mode, but honestly, I’m not convinced triple-pane is always worth the cost unless you’re doing a full reno or your windows are already shot. I swapped out two old single-pane windows for double-pane low-e units last year, thinking it’d be night and day for noise. It helped, but nowhere near what I expected - especially with low-frequency stuff like trucks or bass. The real kicker was realizing how much sound actually comes through the walls themselves, not just the glass.

That bit about the wall vibrating is spot-on. In my place (built in ‘78), the exterior wall under the window is basically drywall, some insulation that’s seen better days, and then siding. Not exactly Fort Knox. I tried adding mineral wool insulation when I had to patch a section, and it actually made more difference than the new window did for certain noises. Not perfect, but noticeable.

Curtains are mostly hype for anything below, say, conversation level noise. They do help with echo and high-pitch stuff, but if you can feel your floorboards shake from a passing bus... yeah, curtains aren’t saving you.

If you haven’t already tried this: check around electrical outlets and baseboards under those windows too. I found a couple spots where air (and sound) was just pouring in around old outlet boxes. A little putty or foam goes a long way there.

At some point, though, you’re right - it’s diminishing returns unless you want to tear open walls and start over. Sometimes I wonder if these old houses just weren’t built for modern life - definitely not for subwoofers next door. Still, plugging up every little gap has slowly chipped away at the worst of it for me. Just takes patience... and maybe earplugs for those 6am dog wake-up calls.

The real kicker was realizing how much sound actually comes through the walls themselves, not just the glass.

Yeah, that was a wake-up call for me too. I did all the caulking and weatherstripping around my windows, but the difference was barely noticeable until I started checking for gaps in the walls and floor. Ever tried those acoustic putty pads behind outlet covers? They’re cheap and surprisingly effective. Curious - did you notice any improvement after adding mineral wool, or did it just make the wall feel more solid?

Funny you mention the putty pads - I just put some in last month after reading about them here. Didn’t expect much, but it actually cut down on this weird hum I’d been hearing near the outlets. My house is from the late 70s, so there are gaps everywhere... I swear, air and sound just find their way in.

I tried mineral wool in one of the bedroom walls when we were repainting, mostly because I was desperate to block out traffic noise. It definitely made the wall feel sturdier, and I think it helped a bit with sound, but honestly, it wasn’t a miracle cure or anything. The low rumbles still come through, just maybe a little less harsh? On the plus side, it’s way better at stopping voices and general chatter from outside.

Kind of wish I’d known about all these sneaky sound paths before buying - thought new windows would be the magic fix. Turns out it’s all the little stuff that adds up.

Turns out it’s all the little stuff that adds up.

That really nails it. I thought swapping in double-pane windows would be the end of my noise problems, but nope - still heard trucks rumbling by like they were in the driveway. Ended up crawling around with a flashlight and found gaps under the baseboards and even around the light switches. Sealing those made more difference than I expected. I guess with these older houses, you’re basically playing whack-a-mole with sound leaks... every time you fix one, you notice another.

I guess with these older houses, you’re basically playing whack-a-mole with sound leaks... every time you fix one, you notice another.

That’s exactly what it feels like. I went down the same rabbit hole - figured new windows would be the magic bullet, but the noise just found new ways in. For me, it was the attic hatch and even the old mail slot in the door. I stuffed some insulation up there and it actually made a difference, which honestly surprised me.

I’m starting to think these old walls are just full of sneaky little gaps. Did you ever check around your doors? I realized the weatherstripping on my back door was basically useless after all these years. Replacing that helped with drafts and noise both.

Curious if anyone’s tried putting up those heavy curtains or acoustic panels? I keep seeing them recommended but haven’t taken the plunge yet.

I’m starting to think these old walls are just full of sneaky little gaps.

Haha, yep - my 1920s place is basically a sieve. Heavy curtains helped more than I expected, especially in the bedroom. Acoustic panels looked cool but honestly didn’t do much unless I covered a ton of wall. Definitely worth trying curtains first if you’re on the fence. Don’t give up - every little fix adds up, even if it feels like a never-ending game of noise hide-and-seek.

I get where you’re coming from - my place is from the ‘30s and it’s like the walls and windows are in on some kind of joke. I used to blame the windows, but after a while I realized most of the noise was sneaking in through the tiniest cracks and gaps around the frames. You’d be surprised what a difference a bit of weatherstripping and some caulk can make. I know, not glamorous, but it’s cheap and you don’t need any fancy tools.

Heavy curtains definitely helped with traffic noise, but honestly, if you’ve got old single-pane windows (like I did), curtains only do so much. I tried those “soundproof” curtains - let’s just say they’re better at blocking light than noise, unless you double them up and make sure they’re wider than the window. I was tempted by those stick-on window inserts, but the price made me pause. Ended up making my own with acrylic sheets from the hardware store and some magnetic tape. Not perfect, but it cut the worst of the street noise and didn’t look half bad.

Acoustic panels always seemed more for echo inside than for keeping outside noise out. I tried a few behind my bed and yeah, it made things a bit less “hollow,” but didn’t do much for the guy revving his engine at 2am. It’s like you have to attack the problem from every angle - curtains, gaps, maybe even rugs if you’ve got hard floors.

I still get some noise, but it’s manageable now. Just wish I’d known how much difference a tube of caulk could make before I spent money on all the fancy stuff. Anyone else ever notice that sometimes the “old house charm” is just code for “drafty and noisy”?

Funny thing, I always thought replacing my old windows would be the magic fix. Spent a fortune on new ones, but turns out, like you said, half the racket was sneaking in through gaps around the frames and even under the sills. A couple weekends with some caulk and foam strips made a bigger difference than all the fancy upgrades. Sometimes it’s the little fixes that do the most work... though I still curse those “charming” creaky floors every morning.