- Definitely agree, those old frames can hide some sneaky gaps that make a bigger difference than most folks expect. - I’ve found mineral wool works w...

Good tips here—I agree that weatherstripping is usually the best first step. A couple more things I've noticed from experience: - Check the caulking ...

Good points on sealing gaps—it's surprising how much noise sneaks in through tiny openings around frames. I've seen clients spend a fortune on acousti...

Good point about caulking—seen plenty of drafts sneak in through tiny gaps people overlook. Also worth checking weatherstripping around sashes; cheap ...