Homemade soundproofing instructions

Updated November 21, 2016

Homemade soundproofing can keep the interior and exterior of your house quieter. The purpose of soundproofing is twofold: keeping exterior noise out of your house due to noisy neighbours, cars, planes or dogs, and keeping your noise inside the house. If you are a loud family, soundproofing the home, or at least one room, will allow you to be as loud as you want, because your neighbours won't hear you. The two most popular rooms to soundproof are music rooms and home theatre rooms. There are simple steps to make homemade soundproofing an easy and effective project.

Choose a room with the least number of windows and doors to soundproof. Windows and doors are exit points for sound and will need more renovation.

Replace the windows with dual-pane windows that have acrylic or vinyl frames. Acrylic and vinyl are better at noise reduction than other materials.

Hang sound-deadening drapes, like those used in hotel rooms, over your new windows. These drapes are made so they block sound waves from entering or exiting through the window. Make your own soundproofing drapes with a heavy synthetic material, such as polyester. Buy enough material to cover the front of the window from the ceiling to the floor.

Cover the interior of the windows with styrofoam squares or soundproof mats. Styrofoam squares are 1 to 2 inches thick, come in a variety of sizes and can be purchased at a home supply store. Cut the styrofoam sheets to fit inside your window frame. Wedge them in so they won't fall out. Cover the exterior of your windows with shutters to hide the styrofoam and to block out more sound.

Replace the room's hollow-core door with a solid-core door to reduce the sound that can escape. Use a tube of caulk and a caulk gun to apply a bead of caulk around the door frame. Close any gaps with rubber stripping.

Cut a hole in each section of wall between the studs and blow foam or paper insulation into your walls to deaden sound. The thicker the insulation, the more soundproof your room will be. After you have added insulation, repair the wall.

Add more layers of drywall to your walls, since walls with several layers of drywall resist sound better. Make a gap between the existing drywall and the new layer to absorb more sound. Run thick beads of caulk on the existing drywall and allow them to dry. Put the new drywall on top. Attach it to the wall studs with long drywall screws.

Cover the ceiling, floors and walls with soundproof tiles or carpet. Climb into the attic and install another layer of fibreglass insulation. Any time you add an additional layer for sound to travel through, it will reduce the noise.


The more soundproofing methods you do, the quieter your room will be. If you can't do all of them, consider the new dual pane windows with styrofoam covering as a priority.

Things You'll Need

  • Dual-pane vinyl-frame windows
  • Sound-deadening drapes
  • Styrofoam
  • Soundproof tiles
  • Shutters
  • Solid-core door
  • Rubber stripping
  • Drywall
  • Caulk
  • Caulk gun
  • Drywall screws
  • Insulation
  • Carpet
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