Why Soundproof Bifold Doors? Use Soundproofing Curtains. Buy soundproofing curtains on Amazon and hang them over your door. Use Soundproofing Blankets. Soundproofing blankets work the same ways as soundproofing curtains. Seal the Bifold Door Gaps. Apply Soundproofing Paint. Close the Space Between Bifold Door and Floor. Click to see full answer. In respect to this, how do you soundproof an accordion door? Best 3 Ways to Soundproofing Accordion Doors Inspect and Seal All Gaps on the Accordion Door. Check whether the door has been installed properly. Check the Space Between the Floor. Do your accordion doors leave a space between the door and the floor. Inspect the Door Insulations. Likewise, how do you soundproof a glass door? The Inexpensive Way to Soundproof a Glass Door The easiest and most cost-effective way of soundproofing a glass door is by covering them with soundproof curtains. These curtains are basically heavy drapes which will help deaden the sound that is entering or leaving the room. Also to know, how do you soundproof a doorway? Instructions Seal All The Gaps And Cracks. Use Weatherstripping Tape On The Door. Use Door Gaskets. Use A Soundproof Blanket. Use A Door Sweep. Place a Rug. Get Some Soundproofing Curtains. Dampen The Noise On The Other Side. What type of door is best for soundproofing?Great barrier. By replacing hollow-core doors with solid construction doors, such as solid wood or solid-core doors, you can substantially improve your building’s soundproofing. If you can afford a solid hardwood door, this will cut down on noise considerably.