How to Soundproof a Door? 10 Best Ways to Make it Happen

Hello everyone, today I’ll be talking about the 10 best ways on how to soundproof a door. The most important step when soundproofing any room in your home is to make sure the door is soundproof the door is.

Of course the biggest opening in most places that anyone would attempt to soundproof so how would you some proof a door what would be the best way you would think well for me.

Personally the best way to some prefer door in your home or office would be to install a solid core door also attaching a rubber door sweep, that is tight enough on the floor will seal the lower gap completely.

So there are many other ways to soundproof a door since installing a solid core door can be expensive, especially for people on a low budget.

So that being said, I will think of every single way on how to top up a door, so you can make a sound decision on which steps are best for you.

Install a Solid Core Door

Like I said install a solid core door, so as I mentioned in solid a solid core door is one of the easiest ways to soundproof the biggest opening in a row.

The only problem is that it also is one of the most expensive ways to soundproof a door. So it might prove to be a bit too expensive for some people.

I will explain why swapping your hollow core door for a solid core door is an worth idea considering. Most homes today have hollow core doors throughout their home.

Most of the time, the only solid core door is the time the only solid core door is either the front or back door of the house leading outside.

The difference between both types of door is in its name, a hollow core door consists of a hollow door usually made of a thin sheet of wood you’ll know it’s a hollow core door just by knocking on the door.

If you hear an echo is hollow, another easy way to determine if the door is hollow is the weight of the door if you knock on the door and you feel it wobble then indeed it’s probably not solid.

Go knock on the doors within your home and find out for yourself if you think they are solid or hollow. A solid core door is the opposite of hollow-core.

And it’s completely solid throwing through a solid door will make it much harder for sound to be able to pass through like I stated above a solid corridor are the doors that usually enters the house from outside and when you knock on them they should not echo at all.

Some people think that solid doors is usually made of steel, but that’s not the case. There are many different types of doors made of wood that would seem out of place inside your home.

But, actually they do make some that you wouldn’t even be able to tell that they are solid. They’ll look just like any other door in your house.

Attach a Door Sweep

Attaching a door sweep on the bottom of the door is an excellent first step when you’re figuring out how to soundproof a door. Almost every door inside a home leading from room to room has a relatively large gap on the bottom.

There is no point even to install a solid core door if you’re going to leave an open gap where sound can easily travel through, a door sweep will seal that bottom gap and ensure that you have minimal noise coming in from the other room

So noise reduction isn’t the only advantage of having a door sweep there’s other benefits so one advantage of having a door sweep is that it keeps bugs on the other side of the door.

If you choose to install a door sweep, you’ll need to understand that door sweeps are not as simple to install as weather stripping tapes.

You will most likely need to drill screws in the door sweep to attach it to the bottom of the door.

So the door sweep that I can recommend is the envy building products commercial grade door sweep from Amazon, because this particular door sweep has a metal section where it screws into the door and it also has a harder rubber bottom to ensure that even dust won’t be able to get through to the next room.


Weatherstripping the door one of the best ways to soundproof a wobbling door is by using weather strip, so you have a tighter closed. You can use all sorts of different types of weather strips most people use.

Weather strips as an air seal around windows but it works very well to help block noise around the door. The weather strip I recommend is the soundproof weather stripping indoor kit from Amazon

This weather strip is self-adhesive and that is a must-have for this type of project there is even a door sweep included in this soundproofing kit as a bonus.

The very first step before installing the weather strip is to properly clean the area where you will be connecting this strip, make sure the surface is clean and dry before applying the soundproof strip.

Just peel off the small section of strip by exposing the self-adhesive surface and stick it on the inside of the doorframe from the top corner all the way down to the bottom.

I find the best place to install the strip is where the door makes contact to the doorframe wall closed, when you close the door it’ll squish the weather strip and make an airtight seal around the door.

So no air, well okay yeah they’ll be air. But, no noise will come through one bonus. I want to mention with regarding this type of door soundproofing method is that you will never hear the door slam. Thanks to this method.

Seal the Cracks amd Gaps

So if you still have a few tiny cracks and gaps around your door to know for sure if you have a few cracks, letting a sound come into the room.

All you need to do is turn the lights in whatever room in the opposite side of the door you’re attempting to soundproof next go inside the room where you want the soundproof door to close and see.

If any light passes through cracks around the door, if you see light coming through, you could quickly seal the small cracks with some soundproofing sealant.

I would actually try this before I install any type of weather strip around the door cracks and gaps, around doors are more prevalent in older homes.

Older homes suffer warping and shifting of the foundation but it can also happen in newer homes as well, the sealant that I choose all the time basically is from green glue its insulating sealant.

Soundproof Blankets

There are many cheap soundproof blankets on the market. Most soundproof blankets have built in fiberglass fibers which are known to be great sound absorbers.

When you’re soundproofing a room then utilizing a soundproof blanket is a good idea, because it also absorbs some of the echo from the room on the other side.

The soundproof blanket I would use the double faced quilted fiberglass blanket which is two inches thick this particular blanket is not cheap but when properly installed this would be the only thing you probably need to soundproof the door.

So how would I hang the sound of blanket, well the way I would hang it would be using the velcro. So firstly the velcro that will work for this type of project is from X fastened, it’s a adhesive hook and loop black one inch by ten foot industrial grade velcro.

You need to be careful as to what type of double-sided self-adhesive velcro tape you use since most of them will not stick very well to a fabric surface, the velcro is made for metal and fabric specifically.

Fill a Hollow Core Door

Fill hollow core door with foam insulation, so you ever wonder if you can turn a hollow core door into a solid core door?

Probably not, because it’s not something that is heavily talked about when people talk about solid core doors, the only thing you will need to buy to turn a hollow core door into solid is a few kinds of insulation spray foam.

The first step is to drill a few holes on the edge of the door, for best results the holes should be the size of a the straw that comes with the can.

Start low on the door and let the spray foam expand and solidify add more spray foam every 12 inches until you’ve reached the top of the door plug each hole with tape.

So the foam doesn’t expand outward, the spray foam should make its way towards the middle of the door.

One tip I would suggest is that you remove the lock mechanism and knobs temporarily do this to avoid gumming up the hardware.

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