How to fix gap on one side of garage door?

How to fix gap on one side of garage door?


If you have noticed a gap on one side of your garage door, it can be a cause for concern. Not only can it affect the appearance of your garage, but it can also compromise the security and insulation of your home. However, fixing this issue is possible with the right approach. In this article, we will explore the steps you can take to fix the gap on one side of your garage door and ensure it functions properly.

Identify the Cause

Before you can fix the gap on one side of your garage door, it is important to identify the underlying cause. There are several potential reasons for this issue, including:

1. Misaligned Tracks: Over time, the tracks that guide your garage door may become misaligned. This can cause the door to tilt to one side, resulting in a noticeable gap.

2. Worn Weatherstripping: The weatherstripping along the sides of your garage door can wear out over time. When this happens, it may no longer create a proper seal, leading to a gap.

3. Damaged Rollers: The rollers that allow your garage door to move smoothly along the tracks can become damaged or worn. This can cause the door to sag on one side, resulting in a gap.

Fixing the Gap

Once you have identified the cause of the gap on one side of your garage door, you can take the necessary steps to fix it. Here are some common solutions:

1. Adjusting the Tracks: If the tracks are misaligned, you can use a level to determine the extent of the problem. Loosen the screws holding the tracks in place and gently tap them back into alignment using a rubber mallet. Once the tracks are straight, tighten the screws to secure them in place.

2. Replacing the Weatherstripping: If the weatherstripping is worn or damaged, it will need to be replaced. Measure the length needed and purchase a new weatherstripping kit. Remove the old weatherstripping and clean the area thoroughly. Attach the new weatherstripping, ensuring it creates a tight seal when the door is closed.

3. Repairing or Replacing Rollers: If the rollers are damaged, they may need to be repaired or replaced. Start by removing the brackets that hold the rollers in place. Inspect the rollers for any signs of damage or wear. If necessary, replace the rollers with new ones that match the size and type of the existing ones. Reinstall the brackets and test the door to ensure it moves smoothly.


Fixing a gap on one side of your garage door is essential for maintaining the functionality and security of your garage. By identifying the cause of the gap and taking the appropriate steps to address it, you can ensure that your garage door operates smoothly and provides a proper seal. Regular maintenance and inspections can help prevent this issue from occurring in the future.