How to Seal a Garage Door From the Inside

If you’re tired of drafts, snow, rain, dirt, and bugs coming through your garage door, it’s time to seal that bad boy up. You’ll be able to reduce outside noise dramitically and insulate your garage once you seal your garage door from top to bottom.

Below you’ll find 5 of the best ways to seal your garage door from the inside.

Let’s get started.

1. Seal the Bottom With a Threshold Seal

Start off by sealing the bottom of your garage door with a threshold seal. You’ll love to know that it has 7 layers of insulation reducing noise up to 5 times. It’s also 20′ long so you can cut it to fit any garage door that’s less than 6 meters.

It’ll keep the temperature regulated by creating a perfect seal, keeping the air in. Sealing the floor will also reduce the number of bugs or spiders that find their way into your garage.

The best part about installing a threshold seal is that it doesn’t require any tools to install!

Some users did mention that they needed another person to help them as getting the seal around the track can be difficult.

How to Install

Step 1: Remove your garage door’s old seal, lubricate if necessary

Step 2: Clean the bottom of your garage door.

Step 3: Spray the bottom track of your garage door with lubricant.

Step 4: Soak the new seal with soapy water so it’s easier to work with.

Step 5: Slide the threshold seal right in. Tuck the ends inside and you’re done.

2. Sealing the Top and Sides of Your Garage Door

You can use these silicone weather seals to seal the top and sides of your garage door. You’re also able to use them on the bottom if you don’t want to purchase additional floor seals.

This weather seal also comes with upgraded glue already installed which lasts through extreme temperatures. It’ll reduce any bothersome noise and insulate your garage door further. Installation requires no tools (other than scissors to cut) and can be done in a jiffy.

How to Install

Step 1: Clean the area around your garage door you want to stick the silicone to thoroughly and let dry.

Step 2: Measure the gaps between your garage door and cut the weather seal to the length required.

Step 3: Peel off the red tape and stick it on your garage door.

Step 4: Press on the glue surface to ensure proper sticking.

3. Utilize Garage Door Insulation Kits to Reduce Noise

Did you know that insulating your garage door reduces noise as well? Not only that, you’ll be able to use your garage during the coldest and hottest days of the year. Before you go and buy an air-conditioner for your garage, I recommend learning how to insulate your garage door first.

Garage door insulation kits are made up of polystyrene grid panels. You can also get away with cheaper insulation material that is basically aluminum foil, but I recommend going for the full-blown kit.

Insulating your garage isn’t a required step in sealing your garage from the inside, but it is one of the best ways to reduce temperature and noise in your garage. Installation is easy and anyone can do it in an afternoon either by themselves or with friends or family.

This kit is for an 18×8′ garage door and the R-value is 8. It comes with double-sided tape and is made out of the same material NASA uses. It’s also made in the USA!

How to Install

Step 1: Measure your garage door in between the support beams so you can fit the panels in between them. Make sure that the panels don’t hit the garage floor.

Step 2: Cut each panel out according to the measurement of your garage door. A knife is normally used for this, but if you have sharp scissors it might do the job.

Step 3: Apply the double-sided tape to the garage door and then firmly place your insulation panels in place.

Step 4: Continue the process until your garage door is insulated.

Step 5: Close your garage door to make sure it fits. Enjoy your insulated garage!

When you purchase this product, you’ll also be able to call Mike and get any help you should need with installation or questions you may have. Customer service is A+.

4. Brush Strips

If you want to go all the way with sealing a garage door from the inside, you’re going to need brush strips. You’ll be able to reduce any draft, rain, dirt, light, noise, or bugs that make their way into your garage.

Brush strips will close any remaining gaps you have on your garage door bottom. They can reduce energy costs by up to 20% when used in combination with insulation kits. You can use the extras all-around your home as well. The steps to install are super easy and it’s the best cost effective door bottom seal.

How to Install

1. Measure the perimeter of your garage door.

2. Cut the brush strip to size.

3. Remove tape and install.

5. Rubber Seal

If you want to seal a garage door perfectly, you’re going to need a rubber strip. The benefit of the rubber lip is that it will fully seal any gap on the top of your garage.

If you’re a perfectionist like me, this is going to be the final touch on your quest for sealing the inside of your garage door. Garage doors come with rubber pre-installed but they’re low quality and won’t seal the gap flawlessly.

It absorbs water and eliminates any vibration or wind coming from the outside. This rubber seal utilizes metal clips so that it creates the perfect seal. All you need to do is cut it down to size and use the double-sided tape to stick it into place.

Final Tips

You shouldn’t have any issue with getting a perfectly sealed garage door. It will take some effort on your part to learn how to seal a garage door from the inside, but it will be worth it when you won’t have to deal with any outside disturbances. Check out how to soundproof a garage if you’re interested in learning more.

With so many garage door seals to choose from, you don’t have to go with all of them. Go with one at a time, and feel out the situation until you find what’s right for you. I recommend to leave foam board insulation kits for last and start with the bottom and top of your garage door.

Now that you know how to seal a garage door from the inside, you’re ready to get started. Take your time and seal the garage door the right way.

Photo Credit: Flickr

About Roy Cohen

I'm Roy, founder of Hack My Garage. I started out like most not knowing how to hammer a nail, but now I know more than most people about home improvement and DIY. I want to spread my wealth of knowledge with the world and hope to make it a better place.