1 either replace the window you can usually replace only the glass unit and not the whole window or 2 hire a local company to drill holes in the outer pane clean the windows from the inside and install one way air vents to help prevent future condensation.
How to fix condensation in sliding glass door.
This seal cannot be fixed.
This can be expensive but you may be able to save a lot of money if your sliders are still under warranty.
Step 1 drill a hole.
You can attempt a procedure that is gaining popularity but is only appropriate for certain sliding doors.
Drilling small holes in the glass to remove moisture.
The glass in your door is made up of two sometimes three layers of glass separated by a airtight aluminum extrusion and silicone sealant.
Here are some tips on how to remove moisture from between your window panes.
Therefore you will need to start out by drilling a hole in the gasket for the moisture to escape.
These can be seen in the window illustration below.
Try cleaning the fogged windows to remove any buildup that isn t condensation on the glass.
The main problem with a foggy sliding glass door is that the gasket is no longer sealed.
Adjust your glass door s drapes if applicable before you retire for the night as condensation can occur on windows behind draperies resulting in foggy sliding doors the following morning.
The best way to eliminate condensation on sliding glass doors is to install a new insulated glass door double pane glass.
You can hire a sliding glass door contractor to replace the glass units.
Solutions are injected through the top hole and between the two panes of glass to remove the moisture and any residue left behind.
You can shop for a dehumidifier such as damprid on amazon or at your local department store to help absorb moisture inside your home and reduce condensation on your patio glass door.
If cracked or broken glass is the culprit of your foggy window this can be repaired to prevent more condensation from entering the space between the panes.
This creates a dead air space which makes the glass more energy efficient the seal has failed and you are getting condensation between the panes.
If you re door has no thermal breaks there is little that you can do in some cases.
Here s how it works.
This is the simplest fix to the problem but it will only be temporary.
A sliding door professional drills two small holes into one pane of glass one at a bottom corner and a second hole on the opposite side at the top.
Depending on how the doors slide it may be possible to glue a decorative piece of wood or low density plastic on the bottom of the door to act as insulation.