Everything You Need to Know About a Garage Door Seal

Is your garage letting in unwanted drafts, dirt, water, or unwelcome rodents (and their droppings!) into your home? There’s a well chance that the difficulty is your faulty or lacking garage door seal. 

Since such a lot garage doorways are large, it’s important that they arrive with a suitable weather seal to keep out the unnecessary water, wind, dirt, and pests. It’s important to determine if the seals are in good situation from time to time.

There’s also a possibility that the concrete ground or driveway apron below the door may have shifted or cracked — creating large gaps lower than the door. This, however, happens in severe cases. Here, standard seals won’t paintings and you will have to get your garage ground repaired.

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Coming back to weather-sealing a garage door, the method usually comprises adding or replacing the bottom door seal and the weatherstripping on the stop molding along the top and aspects of the garage door. You may also want to add skinny weatherstripping between the door panels in order to make the door airtight.

Want extra details on garage door seals? Read on. 

What is a garage door seal?

weather sealA-1104 Butyl Gasket, by Hardcast on flickr [CC BY 2.0]

A garage door seal, also well-known as weatherstripping or astragal, is a style of sealing mechanism that closes the gap among the ground and the garage door. If you seem carefully, you can discover the sealing on all 4 facets of the door along the edges. 

Its goal is to assist you retain out any debris or pests.

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Why is weather sealing important?

A well-installed seal offers optimal insulation as it keeps any moisture from coming into — by means of gaps — into your home. And, it prevents flooding too. Not to forget, the tight seal blocks rodents and bugs.

Most importantly, the easy-to-install garage door bottom seal blocks the cold and hot drafts efficiently. As a result, a garage door weather seal will effectively cut down your home energy bills whilst conserving your garage and its contents. 

Want to discover out if you would like to replace your residential garage door seals? Start by analyzing all sides of the garage door yourself. 

If the bottom weather seal is cracking or fringing (or letting in a noticeable draft from underneath your door, you wish to replace your bottom seal as quickly as possible. Yet another sure-shot sign is once you can see daylight from the bottom of the door even if it’s closed.

In case you see that the seals are buckling off the foundation of the door, the part seals will want replacement.

Once you’ve analyzed the damage, it’s best tohire a professionalto take care of the sealing for you and make your garage energy efficient, seamlessly.

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Types of garage door seals

Here are some sealing strategies for you:

  • Garage door bottom seal 

The garage door bottom seal aka door sweep is a strip of vinyl or rubber and is definitely one of the most in general used weather seals. The long strip attaches to the bottom edge of the garage door — helping your door end up flush with the ground. 

Since the two vinyl and rubber bottom seals are flexible materials, they easily compress when the door to the garage closes. Thus, sealing the gap along the ground — and retaining out the muck, water, or bloodless breeze. It’s especially a good choice if you have choppy garage flooring. 

FYI:Most wooden garage doorways use a strip-style seal that has angled edges. This seal is used against the the front of the door and the ground and is typically installed using galvanized or aluminum roofing nails.

On the other hand, metal garage doorways usually have an aluminum channel at the bottom to hold a U-shaped rubber gasket — often established as a T-style or astragal seal. On the time of installation, it genuinely slides into both small tracks on the channel. 

Apart from the easy installation, the good factor about U-shaped gaskets is that they are available in different sizes — sealing gaps at exclusive heights.

However, remember that this type of seal is prone to warping and shrinking below extreme moisture and temperature changes. 

Further info? Take a appear at a Comprehensive Guide on Garage Door Installation

  • Garage door threshold seal 

As the name suggests, a threshold seal sticks directly with an adhesive to the floor underneath the garage door. A threshold seal, not like a bottom seal, is attached to the floor rather than the door. You can always use both together. In fact, regardless of a door seal. 

It’s usually comprised of hard rubber or vinyl and comes with a unique peak layout that’s the ideal barrier between the garage and any surface water or debris. Prefer a quality seal and it is going to be durable too. 

It’s a good alternative if yourhouse’s drivewayslopes down towards your garage. Moreover, it facilitates fill even a large gap less than your garage door.

The downside to a threshold seal is that just as it blocks any water from flowing in, it also maintains the water from going out of your garage. If you ever choose to hose out your garage so as to sweep out the dust or debris, this feature can be quite inconvenient. 

  • Garage door stop weatherstripping 

Want to restrict wind and rain from getting into your garage around the sides and top? Install a vinyl or rubber weather stripping onto the wooden door stop molding (attached to the door jamb).

Replacing your old, worn stripping — that no longer seals against the door — with new weatherstrippingonto your door stops is important.

The installation is easy too. Because the weatherstripping comes in rolls, all you have to do is simply cut it to the necessary size with a utility knife. It’s best to use galvanized nails or screws to fix it. Be sure that the door-side flange of the weatherstripping presses against the door — creating a good seal.

  • Door-stop molding with integrated weatherstripping

This special variety of door-stop molding is made of vinyl with a wood-look molding strip and a flexible weather-seal flange — all in a single piece. Such a molding with inbuilt weatherstripping is a sensible choice if your garage door has ancient or damaged door stops. 

As far as the installation goes, you can reduce the piece easily using a saw. Just situation the door stops parallel to the door face, and push the molding so that the weatherstrip flange compresses against the door. Then, fasten the molding to the door jamb with galvanized or stainless steel siding nails. 

FYI:It’s finest to install the top molding first. You can then overlap the ends of the top molding with the aspect stops.

  • Garage door panel weatherstripping

This V-shaped garage door weatherstripping seals the gaps between the individual door panels. A sensible choice if your house has wood garage doors with panels that have flat edges.

Here too, the installation is rather simple. Such a lot door panel weatherstripping comes in rolls and is self-adhesive. Virtually stick it to the top or bottom fringe of each door panel and you’re done! 

Just make sure that while the door closes, the panels compress the weatherstripping — creating an effective seal.

  • Brush seal

This style of sealing is usually extra regular on commercial doors such as sheet doorways or rolling metallic doors. It has thousands of bristles that help to cut down noise when retaining out dirt and fumes.

You can choose from light, standard, or heavy-duty brush seals as consistent with your requirement. 

FYI: Apart from the above garage door seals, you can even prefer weather seal kits — available in varying thickness and quantity. Although they may have a higher prematurely cost, the price will typically include the two hardware and installation charges.

Now that you’re familiar with the sorts of sealing selections you have, it’s time to evaluate the price of replacing your old garage door seal. 

How much does it price to replace a garage door seal?

Garage seal doorGarage door, by Jesus Rodriguez on flickr [CC BY 2.0]

It will cost you approximately$60to install weatherstripping in a single outdoors door. Of course, the overall price depends upon the type of sealing or weatherstripping you choose and the installation as good as labor charges. 


Installing garage door seals properly is crucial in maintaining out the insects, debris, rain, and snow. A good-quality seal will help in final the gap between the floor and your garage door — providing you optimal insulation.
According to research, sealing the gaps around doors and windows canhelp save as a lot as 10 to 15%in your power bill! No wonder garage door seal is a well funding to make.

Read more: Garage Door Prices

Everything You Need to Know About a Garage Door Seal was last modified: December 9th, 2020 by Ramona Sinha