Overhead Door Company of Wilmington™  Serving:

Wilmington, NC Southport, NCHampstead, NCSunset Beach, NCLeland, NC


If you even suspect you may not be able to make the repairs yourself, contact a professional. As the largest moving part of your home, garage doors can pose a serious safety hazard - especially when they are malfunctioning.

Sealing Your Garage Door: What You Can Do

Garage doors serve as the main entrance to most homes, which is why it is essential to make sure they are sealed properly. A well-sealed garage door not only protects your home from harsh weather conditions but also provides a better insulation solution for your garage. In this article, we will discuss some ways to make your garage door seal effectively.

Understanding Garage Door Seals

Before we dive into the methods to make your garage door seal, it’s important to understand what garage door seals are and why they are important. Garage door seals are materials used to close the gaps between the garage door and the garage floor. They prevent cold air, rain, and dust from entering your garage. They also keep insects and small animals from sneaking in. A good seal will keep your garage dry, clean, and comfortable.

Signs of a Poorly Sealed Garage Door

Identifying if your garage door needs sealing is crucial. Here are some signs of a poorly sealed garage door:

1. Drafts

If you feel cold air coming in your garage, it could be a sign that your garage door is not sealed properly.

2. Water leaks

If you notice water pooling on the floor after a heavy rain, it’s likely that your garage door has gaps that need sealing.

3. Dirt and debris

If you notice dust and debris building up in your garage, it could be because your garage door is not sealed correctly.

Ways to Make Your Garage Door Seal Effectively

Here are some ways to make your garage door seal effectively:

1. Replace the Weather Stripping

Weather stripping is the material that lines the bottom of your garage door. It helps seal the gaps between the garage door and the floor. Over time, weather stripping can crack or become brittle, allowing air and water to seep in. Replacing the weather stripping is an easy and cost-effective way to seal your garage door.

2. Install Threshold Seals

Threshold seals are placed at the bottom of your garage door, creating a barrier between the floor and the door. They are made from durable materials such as vinyl and rubber and come in various sizes. Threshold seals are easy to install and can be a permanent solution to keep your garage dry.

3. Add Garage Door Stop Molding

Garage door stop molding is a strip of rubber or vinyl that is attached to the sides and top of your garage door. It helps seal the gaps between the door and the frame. Adding garage door stop molding can provide extra insulation and protect against harsh weather conditions.

4. Use Garage Door Insulation

Garage door insulation is an effective way to keep your garage warm in the winter and cool in the summer. It can also help reduce noise and vibration. Garage door insulation is available in different materials such as fiberglass, foam board, and reflective foil.


A well-sealed garage door is essential for protecting your home and providing a comfortable environment. Replacing the weather stripping, installing threshold seals, adding garage door stop molding, and using garage door insulation are effective ways to make your garage door seal properly. By following these methods, you can save energy and reduce your electricity bills.


How do I know if my garage door needs sealing?

A poorly sealed garage door can have drafts, water leaks, and dirt and debris. If you notice any of these signs, your garage door may need sealing.

Can I seal my garage door myself?

Yes, you can seal your garage door yourself by replacing the weather stripping, installing threshold seals, and adding garage door stop molding. However, it’s best to consult a professional for more complicated issues.

How much does it cost to seal a garage door?

The cost of sealing a garage door depends on the method used and the size of your garage door. Weather stripping is the most cost-effective option, while installing threshold seals or garage door insulation can be more expensive.

How long does garage door sealant last?

The lifespan of garage door sealant depends on the type of sealant and the conditions it is exposed to. Weather stripping may need to be replaced every 1-2 years, while threshold seals and garage door insulation can last for several years.

Can a poorly sealed garage door affect my energy bills?

Yes, a poorly sealed garage door can lead to energy loss and higher electricity bills. By sealing your garage door properly, you can save energy and reduce your electricity bills.

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