How To Soundproof A Door: 10 Door Soundproofing Tips

Noise can become detrimental to your daily life when it becomes disruptive at night or when you are trying to concentrate in the office. Doors can only reduce the noise coming into your home to an extent and not totally.  If you are wondering how to soundproof a door, here is your answer.

Knowing how to soundproof your door is essential if you live in big cities. You need materials to block the noise or absorb some of it. A simple soundproofing technique is adding a soundproof rubber to the existing door perimeter or changes to a solid core door. 

Soundproofing a door can be a big undertaking, but it doesn’t have to be. Other options for soundproofing a door are available if you don’t have the cash to hire professionals. In this guide, I’ll share top ways to soundproof interior and exterior doors.


Can You Soundproof The Inside Of A Door?

You can soundproof interior doors by sealing the gaps below and on the sides of the door to block the noise. The gap below the door depends on the type of floor. Interior doors are not weather-stripped like exterior doors. They’re for easy access. 

Exterior doors, on the other hand, are weather-stripped. They keep homes warm.

To successfully soundproof an interior door, you must find where the noise passes through to get into the house. It could be the space below the door, on the sides, or cracks on the wall. Identify the weak point and proceed to seal it off.

10 Ways To Soundproof An Interior Door

1. Use A Soundproof Blanket 

If the noise comes from the door and not the space below it or on the sides, you can seal off sound from the door using a soundproof blanket. Soundproof blankets are made of fiberglass and covered with vinyl. Fiberglass is commonly used to soundproof doors, walls, and ceilings because it blocks sound.

Place a thick soundproof blanket over the door whenever you want to block sound since you can’t have it. If you are recording a podcast indoors, you won’t like interruptions. A soundproof blanket can help seal off noise while you’re at it.

2. Add A Rubber Seal Sound To The Door Perimeter

During your door installation, spaces might be left around the perimeter, usually overlooked. Sound comes from those spaces, so sealing off the rim with rubber is your best bet if you want to block sound. Soundproofing rubber absorbs sound by adding mass to prevent sound waves from escaping a wall, ceiling, or floor.

Some doors are installed with moldings around them, but moldings usually don’t block sound. If your interior door has moldings, remove them before adding the soundproofing rubber. Once you’re done, observe if the noise coming in has reduced. 

Suppose it hasn’t, close the doors and windows and turn off the light if you have to. Observe what points on the door light are coming in and block it with an insulating sealant. 

3. Use A Door Gasket

Door gaskets are a rubber material made of high-quality neoprene. They block off noise from around the door. Gaskets are flexible and can be wrapped around doors easily even though the door isn’t perfectly square. They stay long on doors, so you’re guaranteed you won’t be worrying about soundproofing the door now and then.

To install the door gasket, remove any moldings or frames around the door, and then line up the gasket. 

4. Fill The Gaps Underneath With A Door Sweep

Door gaskets and soundproofing babe can’t seal the gap underneath the door; that is where door sweeps come in. The noise will go into the building if there’s a noticeable space below the door. You can block that space by fixing a door sweep there when the door is closed. Door sweeps are made of insulating metal or rubber. They block the gap and absorb the sound. 

Find a doo sweep that fits with your doo size, grab a drill and screws, and drill the door sweep onto the door. When installing a door sweep, pay attention to the lining. If it’s not straight, soundwaves will find their way into the building through those spaces, and you don’t want that. Some door sweeps are smarter, having a controlled movement. 

Automatic door sweeps have a flat-spring mechanism to stay above the floor when you open the door and drop down when you close it. 

5. Add Mass-Loaded Vinyl Inside The Door

Vinyl sheets are dense rubber materials capable of blocking sound waves. Putting vinyl sheets inside a hollow door or the door prevents sound from entering the room. Vinyl sheets come in a large roll, so you’ll cut them to size and attach it to the inside of the door using adhesive strips or dampening glue. Adhesives also absorb sound waves but not enough to be used as a soundproofing material.

6. Use Door Thresholds

Door thresholds are like door sweeps that you can lay on the doorway instead of the door itself. They are made of neoprene and can be laid on the floor underneath the door. Although they have tiny rubber protrusions that fill the gaps underneath a door, thresholds 

7. Use Mass Foam Tiles

You can soundproof a door using heavy mass foam tiles, but that depends on the kind of door. They fit together like puzzles, so you won’t have difficulty installing them.

8. Add Fibreboard To The Door

You can add fiberboards inside a hollow door or outside to make it soundproof. Fiberboard isn’t flexible, so you can’t bend it. They are made with wood chips, plant fibers, softwood flakes, sawdust, cardboard, and paper, absorbing sound.

To use a fiberboard for soundproofing a door, open it and put fiberboards inside or around it.

9. Use Door Panels Inside The Door

Door panels are made of heavy materials that block and absorb sound waves. They’re great for soundproofing interior doors. You can only add door panels on doors that you can open up without damage. You can only install the door panel inside and not around it. Open the door, insert slabs of door panels inside it, and then close it back.

10. Use Gap Foam

Gap foam isn’t the best soundproofing material, but it absorbs sound to an extent. Using a dense formula of gap foam around the door perimeter will seal off the noise. Spray the foam around the door perimeter. It goes as it expands. Gap foams may not give the best results on their own, but you can use them as a final coating after using other soundproof materials like gaskets or door sweeps.

Can I Soundproof My Bedroom Door?

You can soundproof your bedroom door by adding a door sweep or gasket to the door perimeter to seal the space below and around the door if you want a quick way to soundproof the door, use a soundproof blanket whenever you want to block off noise from your bedroom.

Most interior doors have spaces below and on the sides. The noise gets into our bedroom from these spaces. If your home has an exterior wall facing the street and receives lots of traffic noise, adding insulation will help keep that out of your home.

Seal off any gaps around your door with caulk or weather stripping, so no sound gets through these openings. 

What Household Items Can You Use To Soundproof A Door?

A quick way to soundproof your door is using household soundproofing materials like carpets, rugs, and curtains to block off the sound. Carpets and rugs add extra mass to the doorway, just like door thresholds, thereby absorbing sound waves as they come.

Thick curtains on the door can also reduce the sound entering a room.

In the absence of a soundproof blanket, You can also use thick blankets to soundproof your door. Soundproof blankets are made of fiberglass, a great soundproof material. Thick blankets are just fabric thick enough to absorb sound.

Does A Glass Door Block Sound?

Glass doors don’t block sound. Glass conducts sound quite well, so if you have glass doors in a building, be assured that noise will find a free path into the building. Glass doors are perfect for buildings where you don’t need absolute quietness or noise interruptions.

If you have an existing glass door in a building, consider soundproofing it to block sound. Not all methods of soundproofing regular doors work for glass doors, but there are sure ways you can soundproof glass doors. 

How Do You Soundproof A Glass Door?

To soundproof a glass door, you need to seal off all cracks and spaces around the door perimeter using materials like: 

  • Door sweeps 
  • Soundproof blankets 
  • Thick curtains or blinds

You cannot use materials like doo thresholds on glass doors because it’ll affect the door’s movement. 

Is A Solid Wood Door Soundproof?

A solid wood door has enough mass to block soundwaves, making it soundproof. It is made of wood and synthetic wood composites, whereas a hollow core door is made from fiberboard, plastics, and plywood. The thicker and denser the wood, the better the door will be at keeping sound out.

Solid wood doors are more expensive than hollow doors.

Wood is an excellent soundproof material, but not all woods are created equal. The density and composition of the wood make a difference in how well it absorbs sound. A dense hardwood like oak or ash is better than softwoods like pine or fir.

How Much Does A Soundproof Door Cost?

Soundproof doors cost between $1000 and $4000. If you’re keen on soundproofing your interior, you should consider installing soundproof doors. They are made with heavy mass materials to absorb sound. However, solid wood doors are cheaper. 

What Kind Of Doors Are Best For Soundproofing?

Solid wood doors are the best option for soundproofing. Wood is a good choice for soundproofing because it absorbs sound waves that hit it, thereby reducing the noise that passes through it. 

You can also use a metal door for soundproofing. They do not absorb sound; instead, they bounce off sound waves as it hits them. However, metal doors are better when used as exterior doors.


Environmental noise finds its way into our homes daily and can be a real pain. Knowing how to soundproof a door is necessary to maintain calm. The best way to soundproof a door is to replace it with a soundproof door. 

However, if that’s not an option, I hope my guide has provided you with helpful information on different ways to soundproof your doors.

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