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How to Fix Gap On One Side Of Garage Door?

Discover practical steps on how to fix a gap on one side of your garage door. Learn DIY solutions using basic tools, addressing issues like misalignment, worn-out weather stripping, and more. Prioritize safety and gain insights for preventive maintenance.

Fix Gap On One Side Of Garage Door

One of the most important barriers separating your home’s protection from the outside world is your garage door. But when there’s a gap that’s easy to spot on one side, it not only ruins the look but also leaves room for possible security threats, inefficient use of energy, and weather incursion. The good news is that solving this problem may frequently be handled as a manageable do-it-yourself (DIY) project, negating the need for professional assistance.

We’ll walk you through the entire process of repairing the gap on one side of your garage door in this in-depth guide. Together, we can make sure that your garage door adds curb appeal, offers the security and weather protection it was intended to, and fulfills all of your DIY goals. Let’s get started on this journey.

Common Causes of Gaps in Garage Doors

Effective troubleshooting of gaps in your garage door requires an understanding of the underlying issues. Determining the precise problem enables you to apply focused fixes. Gaps are caused by several common variables, and a thorough inspection can assist you in identifying the underlying cause.

Worn-out Weather Stripping

To seal the garage door and stop drafts and water intrusion, weather stripping is an essential part. Due to weather exposure, weather stripping can deteriorate over time and leave gaps at the bottom or sides of the door. Assessing and changing deteriorated weather stripping is an essential first step in fixing this problem.

Misaligned Tracks

The garage door moves along a set of rails that provide guidance. These tracks could misalign and cause the door to sit unevenly, leaving obvious gaps. This issue can be fixed by checking the track alignment and making the required corrections. The rails' loose bolts might need to be tightened, and any bends can be fixed with light taps with a rubber mallet.

Damaged or Worn Rollers

The garage door slides smoothly along its rails thanks to rollers. Wear and tear or damage to the rollers can prevent them from working properly, which can result in gaps and irregular alignment. A smooth door action can be achieved with routine inspection, repair of worn-out rollers, and appropriate lubrication.

Uneven Spring Tension

To ensure smooth opening and shutting, garage doors are fitted with springs that balance their weight. The door may sit askew and leave gaps if the tension in these springs is not uniform. To avoid safety risks, adjust the spring tension carefully, according to the manufacturer's instructions, or with expert help.

Fix Gap One Side Of Garage Door

How To Fix Gap On One Side Of Garage Door?

The security, energy efficiency, and aesthetics of your garage door may all be jeopardized by a significant gap on one side. Fortunately, there are several do-it-yourself options available to help resolve this problem. 

We’ll look at nine practical ways to close the gap on one side of your garage door in this post.

We’ll guide you through each step of the fixes. By the time it’s through, you’ll know how to handle this typical issue, ensuring your garage door works flawlessly and improves the look and feel of your house.

Useful Resouces:

How to Stop a Door From Squeaking?

How to Soundproof a Door?

Check the Garage Door for Gaps on the Sides

Make sure everything looks good before starting to repair the gap on one side of your garage door. 

Examine the alignment of the door along its sides, taking note of any odd gaps. 

Feel for any minute differences by running your fingertips down the edges. Make a note of the precise locations where the gap is largest. 

This preliminary evaluation will assist you in figuring out the problem’s scope and direct your next steps.

Furthermore, extending the garage door’s range of motion to see whether the gap changes at various places. This phase is essential to having a thorough understanding of the issue.

Read More: Soundproof French Doors

Identify the Problem

After determining the gap’s presence and location, investigate further to determine its root cause.

Often, worn-out weather stripping, misaligned tracks, broken rollers, or unequal spring tension are the culprits.

Examine each part carefully, making note of any wear, misalignment, or damage that is obvious. 

The main cause of the gap could be weather stripping if it is focused along the sidewalls. 

Tracks, rollers, and spring tension may all play a role in uneven gaps or misalignment during door movement. 

Determining the precise issue will direct your next steps and guarantee a focused approach to the restoration procedure.

Also Read: How to Soundproof a Hollow Door?

Get the Right Tools

Having the right tools on hand is crucial for a quick and efficient repair. Depending on the nature of the issue, other equipment may be required, but a basic toolkit needs to have things like a screwdriver, a level, a rubber mallet, and lubricant with a silicone basis. 

Because handling high-tension springs poses safety risks, it is imperative to refer to the manufacturer’s instructions and possibly seek professional assistance if spring tension adjustments are necessary. 

Having the appropriate equipment on hand guarantees that you can resolve the problem quickly and reduces the need for more back-and-forth travel.

Prepare the Door for Fixing

Make sure the garage door is in the closed position before beginning any repairs. This reduces safety hazards and offers a steady starting point for modifications. 

To avoid any accidental movements while the repair is being done, disconnect the automated garage door opener. 

If mismatched tracks are the cause of the gap, carefully undo the bolts holding the tracks in place. 

Examine, clean, and remove any debris or adhesive residue from the affected regions if there are problems with rollers or weather stripping. 

By doing these preliminary actions, a targeted and secure repair procedure is established.

Balancing Your Garage Door

A vital first step in making sure your garage door runs smoothly and evenly is to balance it. Not only does an unbalanced door create gaps, but it also puts excessive strain on the system, which can result in early wear and tear. 

To prevent the garage door from being unduly strained or too heavy on one side, balancing entails changing the tension in the springs.

Follow these steps for a comprehensive balancing process:

  1. Locate the Springs: Garage doors typically have either extension or torsion springs, located above the door or on its sides. Identify the type of springs your door has and their location.
  2. Release Automatic Opener: Disconnect the automatic garage door opener to allow for manual operation and prevent any interference during the balancing process.
  3. Close the Door: Lower the garage door to its fully closed position. This serves as the starting point for adjusting the spring tension.
  4. Adjust Torsion Springs: For doors with torsion springs, use a winding bar to adjust the tension. Insert the winding bar into one of the winding cone holes and turn it in the appropriate direction, following the manufacturer’s guidelines. Make incremental adjustments, testing the door’s balance after each turn until it stays in place when lifted halfway.
  5. Adjust Extension Springs: Doors with extension springs will have a safety cable running through them. To adjust tension, pull the safety cable through the adjustable bracket, making sure to maintain an equal amount of tension on both sides.
  6. Test the Balance: Once adjustments are made, manually lift the door to the halfway point and release it. A balanced door should stay in place, neither rising nor falling. If the door moves on its own, further adjustments are needed.
  7. Fine-Tune as Needed: Fine-tune the tension as necessary to achieve perfect balance. It may take a few iterations to get it just right, so be patient and make small adjustments.

Check the Weather Stripping

As a barrier against breezes, rain, and outside factors, weather stripping is essential to preserving the integrity of your garage door. 

A common culprit for gaps you may have seen along the garage door’s sides or bottom is old or torn weather stripping.

Start by visually examining the weather stripping that is currently installed on your garage door’s sides and bottom. 

Check for rips, abrasions, or defects. Weather stripping may become less effective over time due to exposure to various weather conditions and frequent use.

If you find weather stripping that has to be replaced, remove it. Starting at one end and working your way around the perimeter, carefully remove the outdated weather stripping from the door. 

During this process, take care not to harm the door or any nearby surfaces.

After removing the old weather stripping, give the exposed area a quick cleaning. Clear away any dirt, debris, or adhesive residue that has gathered over time. 

When the replacement weather stripping is placed, a clean surface guarantees good adherence and a tight seal.

It’s now time to put in the replacement weather stripping. To guarantee proper installation, consult the manufacturer’s instructions that come with the replacement stripping. 

Certain weather stripping materials may have particular needs, such as location or application methods for the glue.

Make sure the new weather stripping is evenly aligned when you position it along the garage door’s sides and bottom. 

For optimal adherence, press the stripping firmly against the door. Whenever a manufacturer recommends a curing or drying period, adhere to their instructions.

You may be confident that your garage door has new, high-quality weather stripping if you follow these instructions. Consequently, this enhances the integrity of the weather-resistant seal.

Examine and Adjust Tracks

A garage door that sits unevenly and leaves visible gaps is often the result of misaligned or twisted tracks. A thorough inspection and rearranging of the tracks are required to solve this issue.

Follow these steps to inspect and adjust the tracks for optimal alignment:

  1. Use a Level to Check Alignment: Take a carpenter’s level and start evaluating the track alignment. Check for any irregularities by placing the level horizontally along the entire track. You will have to alter the tracks if it is discovered that they are not aligned correctly. With the right tools, find the bolts holding the tracks to the garage door frame and loosen them to provide some wiggle room.
  2. Inspect for Bends or Damage: Look for any obvious bends or damage on the tracks during the alignment inspection. Uneven sitting can be caused by bent tracks, which might interfere with the garage door’s smooth operation. If you find any bends, carefully tap the tracks back into shape using a rubber mallet. To prevent more harm from occurring, proceed with caution when doing this.
  3. Tighten Bolts Securely: After adjusting any bends and lining up the tracks, firmly tighten the nuts. Make sure the tracks are attached to the garage door frame securely. This stage is essential for preserving the proper alignment over time and avoiding gap recurrence. To keep equilibrium, be sure to equally tighten the bolts.

Inspect and Lubricate Rollers

If your garage door has gaps, one possible cause could be worn-out or damaged rollers. Regular inspections and lubrication performed as part of proper maintenance can avert problems and guarantee trouble-free door operation.

Follow these steps to inspect and lubricate the rollers effectively:

  • Inspect Each Roller for Wear or Damage: Start by attentively inspecting each roller to look for indications of deterioration. Because of typical wear and tear or exposure to the environment, rollers may deteriorate over time. Examine them for any anomalies that can impair their performance, such as cracks or flat areas. It’s critical to replace any damaged rollers as soon as possible. The smooth operation of the garage door is facilitated by new, functional rollers that also aid with gap elimination.
  • Apply a Silicone-Based Lubricant: The rollers need to be lubricated after being inspected. For best effects, use a premium silicone-based lubricant. Make sure the oil is evenly distributed by applying it straight to the roller bearings. Because silicone lubricants last longer and are more resilient to temperature fluctuations, they are the favored option. A properly lubricated garage door performs better overall, lowers wear on the rollers, and decreases friction.

Read More: How to Make Door Knobs Quieter?

Adjust Spring Tension

Resolving any gaps that may have been created requires adjusting the tension of the garage door springs. 

These springs are essential for maintaining a smooth and regulated movement of the door by counterbalancing its weight. 

But because this is a potentially dangerous task given the tremendous strain involved, you must handle it with extreme caution. 

It is imperative to refer to the manufacturer’s instructions before making any alterations. The safest method for adjusting spring tension is outlined in specific guidelines provided by the manufacturer based on the weight and design of the door. 

It is strongly advised that you get professional assistance from a garage door specialist if you are unsure or uneasy about the process.

If you choose to independently modify the spring tension, it’s important to make tiny, gradual adjustments. 

You may evaluate the effect of each tweak on the door’s operation by taking this cautious approach. 

To make changes, use the right equipment (winding bars for torsion springs, for example) and adhere to the manufacturer’s instructions. 

Carefully test the door’s operation by opening and closing it by hand after each adjustment. 

The success of the adjustment will be ascertained by keeping an eye on the door’s balance and keeping an ear out for any strange noises

It’s crucial to remember that modifications might need to be made multiple times before the right balance is reached.

Seal Gap At Top Of Garage Door

Bonus: How To Seal Gap At Top Of Garage Door?

In order to keep your garage space weatherproof, energy efficient, and draft-free, you must seal the gap at the top of your garage door.

Identify the Type of Gap:

The first thing to do if you see a gap at the top of your garage door is to take a close look and determine what kind of gap it is. 

Particularly with sectional garage doors, gaps may appear between the door and the frame or between parts. 

Knowing the type and location of the gap is essential since it establishes the basis for choosing the best sealing technique. 

This initial identification informs the future phases in the sealing process, regardless of whether it’s a gap affecting the sections of a sectional door or one enabling drafts between the door and the frame.

Install a Garage Door Threshold Seal:

Installing a garage door threshold seal is a very efficient way to close the space between your garage door and the floor. 

This pliable rubber gasket is made especially to form a strong defense against moisture, insects, and drafts. 

First, give the area a thorough cleaning to get rid of any dirt, debris, or old sealant before applying the seal. 

To ensure a tight fit, place the threshold seal just behind the closed garage door’s bottom edge. 

To ensure correct installation, adhere the seal firmly to the garage floor by following the manufacturer’s instructions. 

This closes off the current opening and acts as a preventative precaution against drafts, floods, and pest incursions in the future by creating a weather-tight seal.

Weather Stripping for Sectional Doors:

Weather stripping can be a useful remedy if you discover a space between the components of your sectional garage door. 

Get started by purchasing an appropriate weather stripping kit made especially for garage doors. 

These kits are widely accessible and include with all the parts needed for a simple installation. 

As soon as you receive the kit, measure and cut the weather stripping precisely to the desired length. 

Fit the weather stripping that has been trimmed precisely to the top edge of each door part. 

The weather stripping forms a tight seal between the panels when the garage door closes. 

This improves the energy efficiency of your garage space by preventing drafts and significantly reducing heat loss.

Use a Garage Door Seal Kit:

A garage door seal kit can provide a complete fix for gaps at the top of your garage door. 

These kits come with a seal that fits over the top of the garage door and forms a tight seal against the frame. 

They are easy to install. Because garage door seal kits come in different sizes, it’s critical to carefully follow the manufacturer’s directions. 

Make sure the seal is properly trimmed, and then fasten it firmly in position. 

Installing a garage door seal kit improves the overall insulation and weather resistance of your garage by sealing up gaps that are currently present and acting as a preventative precaution against potential problems.

Check and Replace Existing Seals:

To guarantee proper sealing, it’s imperative to routinely check the seals or gaskets along the top of your garage door. 

These parts may become damaged or wear out with time, making it harder for them to form a tight seal. 

Start by closely inspecting the seals to make sure there are no tears, wear, or deformation. It’s critical to repair any worn or damaged seals as soon as you notice them. 

In your garage, gaps caused by worn seals can let moisture, drafts, and outside elements in. 

You can preserve the integrity of the sealing system, avoid gaps, and keep your garage safe and weatherproof by replacing old or damaged seals with new ones.

Next To Read: How to Stop a Door From Slamming?

Insulate the Garage Door:

Enhancing the insulation of your garage door can make a substantial contribution to energy efficiency in addition to directly filling gaps.

Take into consideration using a garage door insulation kit, which sometimes comes with seals intended to minimize gaps in addition to insulation material. 

To apply the insulating material to the door panels in a methodical manner, refer to the instructions that come with the kit. 

To get the most out of the insulation, make sure it fits snugly. In addition to the insulation, several packages come with seals that reduce gaps even further and improve the overall thermal performance of the door. 

You may improve temperature control, lessen heat input or loss, and possibly even cut energy expenses by insulating your door.

Final Thoughts!

To sum up, filling in a gap in your garage door is an easy do-it-yourself project that requires basic steps like component inspection and adjustment. To avoid gaps, regular maintenance is essential.

This includes checking the weather stripping and lubricating the system. When making changes, put safety first, especially if you’re working with high-tension springs. Proactive maintenance guarantees the long-term functionality of your garage door in addition to resolving urgent problems.

Consulting a garage door expert ensures skilled advice and a safe solution, especially for complex issues or when hesitant. You can keep your secure and functional garage door in good working order for many years to come with a few basic tools and dedication.

There are various reasons why your garage door doesn’t close on one side, and each one needs to be carefully investigated. Photoelectric sensors that are blocked or misaligned are a prevalent reason.

The purpose of these sensors is to identify obstructions in the door’s passage; if they are obstructed or misaligned, the door might not close.

Verify that the sensors are correctly oriented and that no debris or other objects are obstructing them.

Furthermore, check the tracks for debris, corrosion, or misalignment as these can obstruct the door’s smooth operation.

If the problem continues, check for wear or damage on the garage door springs, cables, and rollers all of which are essential to the door’s operation.

Ensuring the dependable functioning of your garage door can be achieved by routine upkeep and prompt resolution of these problems.

About Author

Muhaiminul is the insightful article’s author on and a fervent DIY living enthusiast. Muhaiminul has spent countless hours learning about and exploring the world of soundproofing techniques and products because he has a deep fascination with creating peaceful and noise-free spaces. Muhaiminul shares helpful advice, detailed how-to guides, and product reviews on out of a desire to help others cultivate peace in their lives.

Quiet Hall Author

Muhaiminul Anik