How to Seal a Garage Door Gap

Garage doors tend to constitute noise nuisance when not sealed properly by allowing noises in and out of your garage and rooms. 

Those spaces in your garage doors will not give room for noise only but also allow breeze, snow, and rain to make their way inside your garage.

You won’t want to spend a lot of money in your garage and still face the problem of noise due to gaps between the top and bottom of your garage door. To avoid such, you have to soundproof your garage doors. 

Noise can come from the roadside, neighbors, or companies around you through those gaps in your garage door.

More than 50 million American inhabitants live in rowdy areas, and it could be so annoying. You don’t have to bother yourself when it could be fixed. 

This article provides the necessary information on how to seal your garage door gaps yourself with simple steps.

Garage Door Gaps on Side

It does not matter how small the gaps are in your garage door because it can still attract unwanted noise, snow, or wind. 

Sealing your garage is not just to stop unwanted noise. Rats, mice, and other wild animals can make their way to your garage, and you know what that means.

Also, you have to do is to check the stops and the tracks. Getting your garage door to good shape involves you being observant at all times. 

You should make sure your stops are doing their job, and if not, they must be changed or fixed properly. Fix the tracks to fit the holes.

List of Ways on How to Seal a Garage Door from the Inside

Before proceeding with the seal, make sure you make provision for all the materials you will need to make your work easier. 

You will need the seal, door sweeps, or any weather stripping, door seal, door brush stip, and super glue.

1. Use a garage door seal

Using a garage door seal is one of the easiest ways of sealing the gaps on the bottom of your garage. It does not require much physical energy to put them. When using them, you should close your garage door to detect where to fix them. 

They will serve you greatly in blocking noise, rodents, and other things like snow from entering your garage. Below are some ways you can install them.

  • Measure your garage door before cutting the door seal. 
  • Make sure you close your garage door to help you identify where to focus more.
  • Then seal with glue and allow to dry.

2. Use a garage door bottom seals

How to Seal a Garage Door Gap

Bottom seals are very easy to install. It comes in the form of a U shape and does not need glue or screw to be installed. 

First, measure your door bottom or the place you need to seal to help cut the seal. Ensure the door is closed to get excellent work. Then use the clip to attach the seal to the door. 

This step is very important because it blocks dirt and small rodents from entering your garage.

3. Seal the top

However, it would be best if you sealed the top too with a garage top seal. Sealing the top prevents heat from leaking out, and you must ensure you seal the top from the ceiling. 

It is best if you don’t want the heat out of the garage, especially during the cold and flu. 

4. Use weather stripping to seal the sides

How to Seal a Garage Door Gap

The top and bottom is not the only place to seal. The sides, too, can constitute a lot of nuisance if not sealed. 

Door sweeps or any other weatherstrip will help block noise, snow, or another thing that would want to make their way to your garage. 

Take accurate measurements of your garage door edges and lay them on the sides with glue. But make sure the edges are clean to ensure they adhere tightly.

How to Seal Garage Door Gaps, Sides, and Top

How to Seal a Garage Door Gap

1. Measure your garage door: The first step is to measure all the areas to be sealed and take notes so it will help you while cutting.

2. Clean the track of your garage door with a brush: This step is very important and must be carried out to avoid air bubbles inside it after sealing, which may lessen the effectiveness of the garage door seal. Use a good brush and clean up the tracks one after another.

Most people see the problem of air bubbles because they assume the garage door is neat, and then there is no need for cleaning. 

You can use any good grease if your garage door is made of wood. I recommend you use linseed, walnut oil, or tung oil.

3. Cut all the materials necessary for the installation: Once you are through with the cleaning, you can proceed with the cutting. 

Cut them according to the measurement and avoid mistakes. It is better to cut them a little bigger than the measurement and trim them smaller than your initial measurement.

4. Use your garage door seal vinyl: Use a good garage door seal like vinyl. It is recommendable because of its versatility to place at the sides, door gaps, and top from the inside.

5. Install your garage door seal properly: Finally, place your garage door seal with the glue. Install door sweeps or weather stripping at the bottom of your garage door to prevent dirt from entering your garage. 

Make sure you touch all the sides that need to be sealed.

How to Temporarily Seal a Garage Door

Perhaps, you may want to seal your garage door temporarily, so it could be easy to remove later in the future. 

Just make sure Sunscreen and cold weather gear is available to see you through during the summer and winter, respectively. 

It is recommended for people that haven’t prepared a permanent garage. Seal your garage temporarily will not cause you more than $120.

Here are the steps to sealing your garage temporarily.

  1. Make provision for the materials you will need like glue, threshold, scissors, garage door seal, screw, and drill. 
  2. Clean the floor of your garage to avoid dirt.
  3. Take an accurate measurement of your garage door. 
  4. Cut your garage door seal to the needed length.
  5. Place the seal and hold it firm with your glue.
  6. Repeat the process to all the places you want to seal and allow to dry.
  7. Place the threshold firmly with your glue.

How to Seal Upsides of Garage Door

Sunlight can penetrate your garage through any hole on your garage door, either through the upsides or bottom. 

So, it is important to seal the upsides of your garage door to keep unwanted pests, sunlight, and noise away. 

You can use a garage door top seal or weatherstripping to seal up the upsides. 

All you have to do is measure the upsides, cut out your garage door top seal, and place them with your glue.


Many of us have converted our garage to a small workshop, so the idea of sealing our garage door is the best. 

A well-sealed garage door will relieve the discomfort of noise, rodents, snow, insect, and so on. 

However, with the steps we have given above, you can easily install it on your own, or you can look for an expert to help you do that.

Do we hope this article was helpful? Comment below, so we can know your suggestion to seal garage door sides and top from the inside.

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