How Do You Fix A Sagging Garage Door Header? Step-by-Step

If you’ve ever wondered, “How do you fix a sagging garage door header?” then you’ve come to the right place. 

A sagging header can be a common problem for garage owners, and it can make your garage door act strangely and cause a lot of trouble. But don’t worry! In this guide, we will show you the simple steps to deal with this issue. 

You don’t have to be an expert in fixing things; all you need is a bit of time, some basic tools, and a positive attitude. We’ll take you through the process step by step so that you can make your garage door work smoothly again. 

Let’s start on the journey to getting your garage door back in good shape.

What is a Garage Door Header?

Before we talk about sagging garage door header repair, let’s learn about the garage door header. The garage door header is like a strong beam that goes across the top part of the garage door. 

It’s there to hold up the garage door and make sure it stays balanced. This way, the weight of the door is spread out nicely.

Signs of a Sagging Garage Door Header

When the top beam of your garage door starts to droop, it can cause some clear problems:

  • Hard to Open and Close: Your garage door might become tougher to open or shut.
  • Gaps Aren’t Even: You might see gaps that are all wonky between the door and the wall.
  • Noisy Door: The door can get noisy, making squeaky or grinding sounds when you use it.
  • Opener Struggles: This sagging header can put more pressure on your garage door opener, which could make it wear out faster.

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

Fix A Sagging Garage Door Header

Fixing a sagging garage door header is an important job. You need to do it right away to avoid more problems. 

By following the steps below on how to fix a sagging garage door header, you can make sure your garage door keeps working well, which will ultimately give you convenience and safety for a long time.

Step 1: Check the Damage

First, take a good look at the garage door header to see how bad it’s sagging. Look for any cracks or damage.

Step 2: Get Your Tools

Before you start repairing the sagging garage door, gather the things you need: a level, a hammer, nails, screws, wood filler, carpenter’s glue, support beams, and a strong jack or support.

Step 3: Keep the Door Secure

Make sure the garage door is closed and supported well so it doesn’t accidentally fall while you work.

Step 4: Put in Temporary Support

Put a strong jack or support on both sides of the sagging header to help while you’re fixing it.

Step 5: Take off the Trim and Drywall

Carefully remove any trim or drywall over the sagging part so you can see the damage.

Step 6: Strengthen the Header

Use extra support beams like steel or wooden braces to make the header stronger. Attach them really well with screws or nails.

Step 7: Fix Damage

Use a hydraulic jack to carefully lift the header back into place. If the header is bent or cracked, use wood filler or carpenter’s glue to fix it. Let it dry before moving on.

Step 8: Put Back Drywall and Trim

After making the header strong and fixing any damage, put back the drywall and trim that you removed earlier.

Step 9: Check Level and Straightness

Use a level to make sure the header is straight and aligned. Adjust it if needed.

Step 10: Test the Garage Door

After fixing everything, take away the temporary support and test the garage door. Open and close it a few times to make sure it works smoothly.

Step 11: Keep Up with Maintenance

To stop the header from sagging again, do regular maintenance on your garage door. This includes putting oil on moving parts and checking them often.

Besides, You should install a garage door opener to make sure your garage door works well. 

This is especially important when you have a sagging garage door header because it helps reduce the pressure on the door’s parts, making it last longer and work smoothly.

Ways to Replace a Sagging Garage Door Header

To change a sagging garage door header:

  • Step 1: Hold the Garage Door

Use supports to keep the garage door steady while you work.

  • Step 2: Take Out the Old Header

Use a saw to cut through the old header on both sides of the garage door. Be careful not to harm the walls or framing around it.

  • Step 3: Put in the New Header

Put the new header in the space and attach it with nails or screws. Make sure it’s level and straight.

  • Step 4: Remove the Supports

Once the new header is in place, you can take away the supports.

Not sure if you should fix or change your broken garage door? Read our blog to get the answer.

Problems of Having a Sagging Garage Door Header

Problems of Having a Sagging Garage Door Header

Now, let’s talk about the issues that come with a sagging garage door header.

  • Hard to Use: A sagging header can make your garage door go wonky, making it tough to open and close smoothly.
  • Extra Stress on Door Parts: This weird angle can stress out the garage door’s tracks, wheels, and opener, which might make them wear out too soon.
  • Safety Worries: A sagging header could mess up how strong your garage door is. It might even make the door collapse or act strange unexpectedly, which is not safe.
  • Weatherstripping Troubles: When the door is crooked, it can mess up the weatherstripping around it. This can let in drafts, bugs, and dirt.
  • Less Energy Efficiency: The gaps from a sagging header can let heat or cool air escape, which ultimately makes it hard to keep the garage and nearby areas at the right temperature.
  • Security Risks: A wonky garage door can create weak spots that burglars could exploit, making your home less secure.
  • Damage to Door Sections: Because of the uneven weight, some parts of the garage door might wear out faster, which can make the whole door not last as long.
  • Noisy Door: A crooked door can make squeaky or grinding sounds as it moves, which can be annoying.
  • Looks Matter: A sagging garage door header doesn’t look good. It can make your home look less nice.
  • Vehicle Trouble: If the door doesn’t close right because of the sagging header, it might bump into your cars or other things in the garage.

Do you have a frustrating garage door that doesn’t work well? 

Take a good look at our blog, and you’ll discover some simple and affordable ways to keep your garage door in good shape.

Additional Tips

If you don’t feel comfortable fixing or changing a sagging garage door header on your own, it’s best to get a professional to help you.

Here are some extra tips for dealing with a sagging garage door header:

  • Get some assistance: This is a tough job, so it’s a good idea to have someone to help you. They can assist in lifting and supporting the header.
  • Use the right tools and materials: Make sure to use the correct size and kind of nails or screws to attach the header securely.
  • Follow the rules: Regarding replacing a garage door header (sagging), make sure you follow all the rules and codes that apply to your area.
  • Keep checking the header: After you’ve fixed or replaced the sagging header, make sure to check it from time to time for any signs of damage.
Momentum Garage Door repair service
Momentum Garage Door repair service

Looking for garage door help in Tampa? 

Try Momentum Garage Door Service. We fix garage doors for homes and businesses. We handle springs, cables, tracks, and openers to keep your garage door safe and working smoothly. We also fix gate doors. 

If you need a new garage door, we have top-quality options and pros to install it. 

We do tune-ups and replace springs to make sure you’re safe and satisfied. Plus, we have a special deal: 15% off your first service. It’s a great way to save on excellent garage door repairs and installations.

Wrapping Up

To sum it up, fixing a sagging garage door header doesn’t have to be super hard. We showed you the steps to help you make your garage door work well and safe again. 

When you’re wondering, “How do you fix a sagging garage door header,” just remember to be patient, use the right tools, and get help from experts if you need it. 

Your garage door is a big deal for your safety and convenience, so taking care of it is a smart move.


Why does my garage door sag when I open it?

A garage door can sag because of different reasons, like broken springs, old cables, or a door that’s not balanced. 

Doing regular maintenance can stop this problem from happening.

What happens if the garage door header size is too small?

If the header is too small, it can create structural problems, which might make the door less safe and cause it to not work properly.

How to fix a bowed garage door?

To make a bowed garage door better, you can use support bars to make it straight and strong. It’s smart to get advice from a pro for the best help.

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