How to Replace Garage Door Bottom Weather Stripping

The bottom weather stripping on your garage door plays a vital role in keeping your garage protected from the elements and maintaining energy efficiency. Over time, this weather seal can wear out, crack, or become damaged, allowing cold air, moisture, and pests to invade your garage. To ensure your garage remains secure and well-insulated, it’s essential to know how to replace the garage door bottom weather stripping effectively.

How to Replace Garage Door Bottom Weather Stripping

In this article, we’ll guide you through the step by step process of how to replace garage door bottom weather stripping, from identifying the type of weather stripping you need to the tools required and the installation procedure. With the right information and a little DIY effort, you can restore the integrity of your garage door’s seal, enhance its insulation properties, and create a more comfortable environment in your garage. So, let’s dive into the details of how to tackle this home improvement project and protect your garage from the elements.

The Importance of Garage Door Bottom Weather Stripping

When installing a garage door, weather stripping is always a must. This is because it helps to keep the temperatures inside your garage regulated as well as create a barrier from water and debris entering your space. It also serves an important role in helping you conserve energy, as it can prevent air drafts from coming into your garage. If you’re noticing that your garage door isn’t keeping the elements out, then it’s likely time to replace the garage door bottom weather stripping.

Installing a Garage Door

Replacing old weather stripping is essential for maintaining comfort and safety inside of your home. Without proper weather stripping in place, you may experience higher energy bills as well as a decrease in temperature regulation. Additionally, improper insulation can lead to rusting or warping of your garage door, which can affect its overall performance and strength. In order to ensure the longevity of your garage door, it’s important to check the weather stripping regularly and replace it once it starts to deteriorate.

When replacing your weather stripping, make sure that you purchase a product that is specifically designed for garages. Not all weather stripping is made equal, so you’ll need to make sure you’re buying a product that is suitable for outdoor use and can withstand temperature extremes.

The Need to Disconnect the Power Source to Prevent Accidents

Before doing any work on a garage door, you should always take the precaution of disconnecting the power source. This can be done by cutting off the power to your opener unit or by unplugging it from the wall outlet. You should also wear protective eyewear during this process as well as when performing any repairs or maintenance to your garage door. It is important to take all necessary safety precautions to ensure your own safety as well as that of others.

Once the power source has been disconnected it is time to begin removing the old weather stripping. The most common type of weather stripping found on garage doors is made out of either rubber or vinyl and attaches to the base of the door with a series of screws or nails. To begin removing the old weather stripping, you should use a flat-head screwdriver to gently pry it away from the door. Be sure to pull it away slowly and evenly so that no damage is done to the garage door itself or to any of its components.

Removing the Old Weather Stripping

10 Steps How to Replace Garage Door Bottom Weather Stripping

Step 1: Gather Your Tools and Materials

Before you begin, it’s essential to have all the necessary tools and materials on hand. Here’s what you’ll need:

New garage door bottom weather stripping (measure the length of your garage door to determine the required amount).

  • A utility knife or sharp scissors for cutting the weather stripping.
  • A pry bar or flathead screwdriver for removing the old weather stripping.
  • A tape measure.
  • Safety gloves and protective eyewear.
  • A cordless drill or screwdriver (optional but can be helpful).
  • Screws or nails for securing the new weather stripping (check the manufacturer’s recommendations).

Step 2: Safety First

Safety should always be a top priority when working on any DIY project. Ensure you have the appropriate safety gear, including gloves to protect your hands and safety glasses to shield your eyes from any debris that may be dislodged during the process.

Step 3: Disconnect the Power

Before starting the replacement process, it’s crucial to disconnect the power source to your garage door opener. You can do this by either unplugging the opener from the electrical outlet or turning off the breaker that supplies power to it. This precaution is essential to avoid any accidental activation of the garage door during the replacement process, which could lead to injuries.

Disconnect the Power Source

Step 4: Identify the Weather Stripping Type

Garage doors typically use one of two common types of weather stripping:

T-style or U-shaped weather stripping: This type slides into a channel or groove on the bottom of the garage door.

Bulb-type weather stripping: This type has a cylindrical or bulbous shape and is attached to the bottom of the door.

Identify which type is currently on your garage door, as this will determine the replacement method.

Step 5: Remove the Old Weather Stripping

To remove the old weather stripping, follow these steps:

  • a. Start at one end of the garage door and use a pry bar or flathead screwdriver to gently lift the edge of the weather stripping.
  • b. Once you’ve lifted the edge, carefully pull it away from the door. Take your time to avoid damaging the door or track.
  • c. Continue this process along the entire length of the garage door until all the old weather stripping is removed.

Step 6: Clean the Area

With the old weather stripping removed, take a moment to clean the area where the new weather stripping will be installed. Remove any debris, dirt, or adhesive residue that may have accumulated over time. A clean surface ensures a better seal and adherence for the new weather stripping.

Step 7: Measure and Cut the New Weather Stripping

Measure the width of your garage door to determine the length of the replacement weather stripping needed. Add a few extra inches to ensure a proper fit.

Using a utility knife or sharp scissors, carefully cut the new weather stripping to the required length. If you’re unsure about the length, it’s better to cut it slightly longer and trim any excess later during installation.

Using a Utility Knife or Sharp Scissors

Step 8: Prepare the Replacement Weather Stripping

Depending on the type of weather stripping you have, the preparation process will differ:

For T-Style or U-Shaped Weather Stripping:

  • a. Insert one end of the weather stripping into the channel or groove on the bottom of the garage door.
  • b. Push the weather stripping along the groove, ensuring it fits snugly and evenly. Use a rubber mallet or the handle of a screwdriver to gently tap it into place if needed.

For Bulb-Type Weather Stripping:

  • a. Align one end of the weather stripping with the edge of the garage door.
  • b. Use a cordless drill or screwdriver to attach the weather stripping securely to the door. Make sure the screws or nails are evenly spaced and provide a secure hold.

Step 9: Test the Garage Door

Before completing the installation, it’s essential to test the garage door to ensure the new weather stripping is functioning correctly. Operate the garage door opener to open and close the door a few times while observing the bottom seal. Verify that the seal compresses and forms a tight barrier with the garage floor when the door is fully closed.

Step 10: Make Final Adjustments

If the weather stripping does not create a tight seal when the door is closed, you may need to make some final adjustments:

  • a. For T-Style or U-Shaped Weather Stripping: If it’s too long, trim any excess with a utility knife. If it’s too short, you may need to purchase a longer replacement strip.
  • b. For Bulb-Type Weather Stripping: If the seal is not tight, you can adjust the height of the garage door by tightening or loosening the limit screws on the garage door opener. Consult your garage door opener’s manual for instructions on making these adjustments.

Some Common Mistakes to Avoid When Replacing Garage Door Bottom Weather Stripping

Replacing the bottom weather stripping of a garage door is not as hard as it may seem, but making some common mistakes can cost you time and money. To make sure your installation goes smoothly and correctly, here are some important considerations to keep in mind:

  • Measure Twice and Cut Once: It’s always best practice to measure twice before cutting the new weather stripping. You want to make sure that your measurements are spot on before you trim the excess away, otherwise you could end up with a smaller strip than desired or one that is too long and doesn’t fit properly.
  • Check for Length: Make sure the new garage door bottom weather stripping is long enough to cover the entire length of your door’s track.
  • Be Mindful of Wear and Tear: Heavy traffic or long periods of use can cause wear and tear on new weather stripping over time.
  • Clean Thoroughly: Be sure to clean off any dirt or debris before installing your new garage door bottom weather stripping. This will ensure that the new weather stripping sticks properly and won’t come loose over time.
Measure Twice Before Cutting the New Weather Stripping


Installing new weather stripping for your garage door is a simple fix that can make your home more comfortable and energy efficient. It’s one of those small upgrades that can make a big difference in terms of function and appearance. Whenever you embark on a project such as this, take the time to measure shapes and sizes, assess what materials might be most appropriate, and plan the work before you proceed.

As long as you keep these tips in mind, replacing garage door bottom weather stripping doesn’t need to be overwhelming or difficult. Feel empowered to take on DIY projects instead of paying someone else to do them for you! Now that you know how to replace garage door bottom weather stripping, it’s time to put these skills into practice. If you follow the steps outlined in this post, you should be able to accomplish the job without any major problems. Good luck and happy DIYing!

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Rick Kelly

I am Rick. I grew up helping my dad with his handyman service. I learned a lot from him about how to fix things, and also about how to work hard and take care of business. These days, I'm still into fixing things- only now, I'm doing it for a living. I'm always looking for new ways to help people grow and develop. That's why I have created this blog to share all my experience and knowledge so that I can help people who are interested in DIY repair.

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