4 ms·Soundproof a room, it's probably enough to replace windows and a door.by monort 10y agoSoundproof a room, it's probably enough to replace windows and a door.Jemmeh 10y agoSoundproofing is difficult and expensive. To the point that it's usually better to move vs doing that.monort 10y agoActually it's cheap, though labor can be expensive depending on your location.