7 Ways To Soundproof A Door

Doors are often the weak link in any room when it comes to soundproofing. Noise can very easily travel through doors which are made of thin cheap materials and may be completely hollow.

Noise can also easily travel through the gaps around the door.

Adding density to your door and sealing up the gaps is the best way to prevent sound travelling through it.

Follow the steps below to soundproof your door. Each of these steps can be done on their own, however we recommend doing as many of them as possible to get the most effective result.

Add Mass To Your Door

First you need to add mass to your door.

There are a number of ways you could do this, you could either get some wooden MDF which is the same size as your door and fix this on or you could use a dense vinyl which sticks to your door and minimises vibrations.

These are the sort of things that are commonly used in recording studios.

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Dense vinyl is typically more expensive than MDF.

Fill Hollow Doors With Acoustic Foam

If your door is hollow you could also remove the bottom part of your door and fill it up with strips of dense acoustic foam.

This can be tricky depending on how your door is built but if you want to soundproof your door without altering the look of it then this is an option worth considering.

Once you have added density to your door it is then important to completely seal it up. This includes sealing the gaps between both the doorframe and the wall as well as any gaps between the door and the doorframe.

Seal The Door Frame

The gaps between your wall and door frame can often allow sound to leak through. To fix this remove the cover of the door frame and glue a dense soundproof rubber around the edge of the frame.

Then then seal the rubber and fill in any remaining gaps around with caulk.

Seal The Door

The next and probably the most crucial step is to seal the gap between your door and the frame.

The most efficient way of doing this is to apply door weather stripping around the edge of your door where the door sits in the frame when closed.

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Weather stripping is used for preventing draughts, if air can get through noise can too so it is very useful for soundproofing.

Make sure you buy high quality stripping as cheap options quickly degrade and fall to bits.

Installing weather stripping is very simple, particularly if you buy stripping that is self-adhesive . Simply peel off the back and press it tightly into place.

If your weather stripping is not self adhesive be sure to glue it in with a high quality adhesive bond that resists vibrations.

Install A Rubber Sweep

The final part of soundproofing your door is to add a dense rubber sweep to the bottom of your door, this will sweep the floor as the door is closed creating a seal between the door and the floor making it much harder for sound to get through.

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Use Acoustic Thresholds

Consider installing an acoustic door threshold too, these are similar to a standard door threshold except they have a protruding strip of rubber down the middle which helps to create a seal with the floor.

Using an acoustic door threshold combined with a rubber door sweep will create a double seal making your door almost impenetrable!

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Some people don’t like floor sweeps on their door because they can damage the carpet and make a swishing noise every time you open or close the door.

Automatic Door Bottoms

If that is you then consider instead getting an automatic door bottom.

These can be embedded inside your door so that they are invisible or they can be screwed into the inside of your door.

When the door is closed a small plunger embedded in the door bottom is depressed releasing the seal so that it drops to the floor and closes the gap.

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When the door is opened the plunger pops back out and the rubber seal immediately lifts back up allowing the door to close freely without any drag.

When installing a automatic door bottom it is crucial that you ensure that the bottom is flush with the bottom of your door and that the plunger is positioned correctly so that the mechanism fires when the door is opened or closed.

Quick, Cheap and Easy Ways To Soundproof Your Door

If you are on a budget or live in rented accommodation where sealing your door frame and attaching dense sound barriers to the door are not an option then there are a few options you could consider.

Mount a curtain rail over the top of your door, if this is not an option you could buy a moveable clothes rack as an alternative which doesn’t need to be door mounted.

Then get the heaviest densest curtain you can find and mount it on the rail (it may be worth having a look at a specialist acoustic curtain). Make sure you get a curtain which sweeps the floor so that sound coming under the door is muffled.

Providing you get a curtain with good density this will significantly muffle any sounds coming through the door.

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