How Do You Fix a Sagging Garage Door Header (Step-by-Step Guide)

how do you fix a sagging garage door header

How do you fix a sagging garage door header? If you find yourself facing this common yet concerning problem, worry not, for we have the solution you seek. Dealing with a sagging garage door header can be a bothersome experience, as it may hinder the smooth operation of your garage door and compromise its overall stability.

However, in this step-by-step guide, we will provide you with practical and effective methods to rectify the issue and restore your garage door’s functionality.

Let’s delve into the process and regain the convenience and security your garage door should provide.

Problems of Having a Sagging Garage Door Header

Let’s first explore the problems a sagging garage door header creates.

Difficulty in Operation 

A sagging garage door header can cause the garage door to become misaligned, leading to difficulty in opening and closing the door smoothly.

Increased Strain on Door Mechanism 

The misalignment puts additional strain on the garage door’s tracks, rollers, and opener, potentially causing premature wear and tear on these components.

Safety Hazard

A sagging header may compromise the structural integrity of the garage door, posing a safety risk as the door could collapse or malfunction unexpectedly.

Damaged Weatherstripping 

Misaligned garage doors can damage or displace weatherstripping, allowing drafts, pests, and debris to enter the garage.

Reduced Energy Efficiency

Gaps created by a sagging header can lead to energy loss, making it harder to regulate the temperature inside the garage and adjacent living spaces.

Security Concerns

A misaligned garage door provides an opportunity for intruders to exploit weak points, potentially compromising the security of your home.

Wear on Door Sections

The uneven weight distribution caused by the sagging header may lead to increased wear on specific sections of the garage door, affecting its overall lifespan.

Noisy Operation

A misaligned garage door may produce squeaking or grinding noises as it struggles to operate smoothly along the tracks.

Aesthetic Issues

Aesthetic Looks for Sagging Garage Door Header

A visibly sagging garage door header can diminish the overall curb appeal of your property, impacting the aesthetic value of your home.

Potential Damage to Vehicles

If the sagging header causes the garage door to close improperly, it could result in accidental collisions with vehicles or other objects inside the garage.

Step-by-Step Guide on How to Fix a Sagging Garage Door Header

Step-by-Step Guide on How to Fix a Sagging Garage Door Header

Fixing a sagging garage door header is a critical repair that should be addressed promptly to avoid further complications. By following the below-mentioned step-by-step guide on fixing the sagging garage door header, you can ensure your garage door remains in excellent working condition, providing you with convenience and security for years to come.

Step 1: Assess the Damage

Carefully inspect the garage door header to determine the extent of the sagging. Look for any visible signs of damage, cracks, or warping.

Step 2: Gather the Necessary Tools and Materials

Before you begin to repair a sagging garage door, gather the required tools and materials, such as a level, hammer, nails, screws, wood filler, carpenter’s glue, support beams, and a jack or temporary support.

Step 3: Secure the Door

To prevent any accidents during the repair process, ensure the garage door is securely closed and supported.

Step 4: Install Temporary Support

Place a sturdy jack or temporary support on both sides of the sagging header to provide additional support during the repair.

Step 5: Remove Trim and Drywall

Carefully remove any trim or drywall covering the sagging header to expose the damaged area.

Step 6: Reinforce the Header

Use additional support beams, such as steel or wooden braces, to reinforce the sagging header. Securely attach them to the existing header with screws or nails.

Step 7: Fix the Warped or Cracked Header

If the header is warped or cracked, use wood filler or carpenter’s glue to repair the damage. Allow sufficient time for the filler or glue to dry before proceeding.

Step 8: Reinstall Drywall and Trim

Once the header is adequately reinforced and any damage is repaired, reinstall the drywall and trim that you removed earlier.

Step 9: Check Level and Alignment

Use a level to ensure the header is perfectly aligned and level. Make any necessary adjustments to achieve proper alignment.

Step 10: Test the Garage Door

After completing the repair, carefully remove the temporary supports and test the garage door’s functionality. Open and close it multiple times to ensure it operates smoothly.

Step 11: Regular Maintenance

Regular Maintenance Sagging Garage Door Header

To prevent future sagging or issues, perform regular maintenance on your garage door, including lubrication of moving parts and periodic inspections.

For all your garage door repair needs, including the sagging garage door header repair, contact Pop’s Garage Door LLC in Aurora, CO. Our expert technicians provide efficient solutions for sagging headers, broken springs, faulty openers, misaligned tracks, and more, ensuring a smooth and safe operation of your garage door. We offer a wide range of high-quality products, customization options, and competitive pricing, backed by a 100% satisfaction guarantee. Experience exceptional customer service and reliable garage door repair and installation services with Pop’s Garage Door LLC.

Wrapping Up

In essence, armed with our step-by-step guide, you now have the knowledge to confidently answer the question, “How do you fix a sagging garage door header?” By following the outlined procedures, you can address this common problem, ensuring smooth garage door operation, preventing safety concerns, and prolonging the door’s lifespan. Remember, regular maintenance and timely repairs are essential for a well-functioning garage door.


Why might I need to replace the garage door header?

Garage door headers can deteriorate over time due to factors such as moisture, pests, or general wear and tear. Sagging, cracking, or other signs of damage may indicate the need for replacement.

Why does my garage door sag when open?

A sagging garage door, when open, is often caused by an imbalance in the door’s weight distribution or misalignment of the tracks. This issue can result from worn-out components, damaged springs, or an improperly installed garage door.

Why is the garage door header size important?

The size of the garage door header is crucial as it determines the structural integrity and load-bearing capacity of the garage door system. An inadequate header size could lead to sagging, misalignment, or even structural failure.

How to fix a bowed garage door?

To fix a bowed garage door, first, release the tension on the torsion springs, then re-adjust and balance the springs to correct the bowing.

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