6 Sliding Patio Door Problems and How to Fix Them

Sliding patio doors are very popular for their modern, smooth appearance and stylish movements. However, their moving nature and the many sliding door parts make them prone to certain mechanical problems. Sliding patio doors can also be harder to repair compared to standard doors. If you have sliding patio doors at home, familiarize yourself with these 6 common sliding door problems, their causes, and what to do with them.

1. Jammed or Hard to Slide

One of the most common problems with sliding patio doors is that they may become jammed or hard to slide over time. This can be caused by a few things, including dirty or broken rollers, bent tracks, and misaligned wheels.

Solution

Clean and grease the rollers first, and see if that fixes the problem. If the rollers are visibly broken or the tracks are bent, you’ll need to take the doors apart to replace the damaged parts. For misaligned wheels, remove the doors and make sure the wheels are not damaged and tightened properly, then simply reinstall the doors. Make sure the doors are aligned with the tracks. This method usually fixes the wheels automatically.

2. Doors are Out of Alignment

Misaligned sliding patio doors usually show a gap between the doors and the tracks. This is usually the result of an inappropriate installation. If you open and close your doors too forcefully, you could also pull them out of alignment sometimes. If left unaddressed, the doors will lose their insulating property. Every opening and closing will wear down the material as the doors rub against each other or the frame.

Solution

It’s best to remove the doors completely, realign them from the top, and then snap them into the bottom track. If necessary, adjust the alignment screws with a screwdriver or pliers. If you leave the doors as-is and only adjust the screws, it may not fully fix the problem.

3. Broken Glass

Strong winds, hail, and broken branches can break the glass on your sliding patio doors. If your doors have loose latches, wind can also blow them shut and shatter the glass when they slam. 

Solution

To repair a sliding patio door with broken glass, you can replace the glass panel without having to replace the entire door and frame. However, the glass used on sliding doors is large and heavy and must be installed properly. Therefore, it’s best to hire a pro for glass replacement.

4. Torn Screen

If you have a sliding screen door on your patio, the screen can be torn by strong winds and flying debris. Animals, including wild ones and your naughty fur babies, can also tear open the screen on your sliding patio door.

Solution

Screen replacement is fairly easy and can be done by yourself. For small tears, you can find screen repair kits to patch them up. If the tears are major, simply replace the entire screen. Measure your door opening, buy a roll of screen, and cut out what you need. Be sure to cut a bit more than the opening so you can tape the screen onto the frame.

5. Bad Seal

The original seal on your door will wear out over time—this is inevitable. Extreme heat and cold can also reduce the seal’s lifespan. This will lead to leaking glass doors, allowing wind and rainwater to enter your home, which can cause mold and water damage to the door frames and your floors.

Solution

For the highest energy efficiency, you should properly insulate your sliding glass doors. Weather strips are the most common insulation option for sliding glass doors. You can also use window insulation films, which will completely seal over where the glass and frame touch. For additional insulation, caulk around the doorframe to seal any cracks and gaps.

6. Bad Locks or Latches

Bad locks or jammed latches on sliding patio doors can pose security threats. They also make the doors more prone to slamming if the latches fail to hold them in place.

Solution

If a simple oiling didn’t fix the locks or latches, you’ll need to replace the part. Since sliding patio doors come in various models, you’d want to purchase a replacement for the exact make and brand of yours. It might be easier to hire a locksmith for the job since they are pros when it comes to fixing locks. You can also refer to your sliding patio door’s manufacturer’s manual to find the correct replacement parts.

When to Call a Pro

Any repairs involving removing and reinstalling your sliding patio doors should be left to a door repair company. It’s also safer for a pro to repair broken glass. Most sliding patio door repair jobs cost between $100 and $250. Repairs involving door frames typically cost between $100 and $350.

How to Prevent Sliding Patio Door Problem

An attentive sliding patio door maintenance routine can prevent most of these problems. Common maintenance steps include:

• Cleaning rollers and tracks.

• Cleaning the glass and looking for any damage

• Checking the caulking and weather stripping. Repair or replace expired insulations.

• Checking the locks and latches

• Slide the doors open and shut to check for alignment issues

• Look for any visible gaps between the doors, tracks, and frame.

• Oil rollers, wheels, and locks, if necessary