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How to Fix a Sliding Door

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(613) 706-4460

Sliding doors are a great addition to any home as they provide a convenient and stylish way to access the outdoors. However, when they start to malfunction, they can become a real headache. If your sliding door is not functioning properly, don’t worry; we’ve got you covered. In this guide, we will walk you through the steps to fix a sliding door, so you can get it back to working condition in no time.

Step 1: Identify the Problem

Before you can start fixing your sliding door, you need to identify the problem.

The most common issues with sliding doors are:

  • The door is sticking and difficult to slide
  • The door is sliding too fast or too slow
  • The door is not sliding at all

Once you have identified the problem, you can move on to the next step.

Step 2: Clean the Tracks

One of the most common reasons why sliding doors don’t slide properly is because the tracks are dirty. Over time, dirt and debris can build up in the tracks, causing the door to stick. To fix this problem, you need to clean the tracks thoroughly.

Start by removing any loose debris from the tracks with a vacuum or brush. Next, use a damp cloth to wipe down the tracks, removing any remaining dirt and grime. If the tracks are particularly dirty, you may need to use a cleaning solution specifically designed for sliding door tracks.

Step 3: Adjust the Rollers

The rollers on a sliding door are responsible for allowing the door to slide smoothly along the tracks. If the rollers are damaged or worn out, the door will not slide properly. To fix this problem, you need to adjust the rollers.

Start by locating the adjustment screws on the bottom of the door. Use a screwdriver to turn the screws to adjust the height of the rollers. Turn the screws clockwise to raise the rollers and counter-clockwise to lower them. Once you have adjusted the rollers, test the door to see if it is sliding smoothly. If not, you may need to replace the rollers altogether.

Step 4: Replace the Weatherstripping

If your sliding door is letting in drafts or outside noise, it may be because the weatherstripping is damaged or worn out. Weatherstripping is a strip of rubber or foam that runs along the bottom of the door, creating a seal between the door and the frame.

To replace the weatherstripping, start by removing the old weatherstripping from the bottom of the door. Clean the area thoroughly to remove any remaining adhesive. Next, cut the new weatherstripping to the correct length and apply it to the bottom of the door. Press firmly to ensure a good seal.

Step 5: Lubricate the Tracks

To ensure that your sliding door continues to slide smoothly, it is important to lubricate the tracks regularly. Use a silicone-based lubricant to lubricate the tracks. Apply the lubricant to a cloth and wipe it along the tracks, being careful not to get any on the rollers.


Can I fix a sliding door myself or do I need to hire a professional?

You can fix a sliding door yourself if the problem is minor, such as cleaning the tracks or adjusting the rollers. However, if the problem is more complex, such as replacing the rollers or tracks, it may be best to hire a professional.

How often should I lubricate my sliding door tracks?

It is recommended to lubricate your sliding door tracks every six months to keep them sliding smoothly.

What kind of lubricant should I use on my sliding door tracks?

Use a silicone-based lubricant to lubricate your sliding door tracks. Avoid using oil-based lubricants as they can attract dirt and debris, causing the tracks to become dirty and sticky.

How do I know if I need to replace the rollers on my sliding door?

A: If your sliding door is still sticking after adjusting the rollers or cleaning the tracks, it may be time to replace the rollers.

Signs that your rollers need to be replaced include:

  • The door is difficult to slide, even after adjusting the rollers
  • The rollers are visibly damaged or worn out
  • The door is making a grinding or scraping sound when it slides

Step 6: Replace the Track

If your sliding door is still not sliding smoothly after cleaning the tracks and adjusting the rollers, it may be time to replace the track. This is a more complex repair that may require the help of a professional.

To replace the track, start by removing the door from the frame. Next, remove the old track by unscrewing it from the frame. Install the new track by screwing it into place. Finally, reattach the door to the frame and test it to ensure it is sliding smoothly.

Step 7: Replace the Door

If your sliding door is old or damaged beyond repair, it may be time to replace the door altogether. This is a more expensive option but may be necessary to ensure your home is secure and energy-efficient.

To replace the door, start by measuring the opening to ensure you purchase a door that fits properly. Next, remove the old door from the frame and install the new door. Finally, test the door to ensure it is sliding smoothly and securely.


A sliding door that is not functioning properly can be frustrating and even dangerous. By following the steps outlined in this guide, you can fix most common sliding door problems yourself. Remember to clean the tracks regularly, adjust the rollers as needed, and lubricate the tracks to ensure smooth sliding.

If your door is still not sliding properly, it may be time to replace the weatherstripping, rollers, track, or even the entire door. By taking the time to maintain and repair your sliding door, you can ensure that it provides years of convenient and stylish access to the outdoors.

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