See what we did to repair the situation.
Sliding glass door leaking into basement.
Have a reputable sliding door contractor remove the door if it has not been damaged build a new frame and reinstall the door.
Fill any cracks around the door with silicone caulking or concrete repair filler.
It looks like the previous owners had the same problem because there is some damage to the floor there.
Aim a garden water hose with a sprayer set on mist or low at the outside of the sliding door.
The door is a retrofit from a previous owner.
One potential problem area you can overlook is underneath an exterior door.
There is a deck outside above the door and a sliding glass door upstairs directly above the leak.
In the case of your door water can get behind the.
I ve checked them and they drain properly.
Gravity pulls the water over each shingle piece of siding or feather and the water never can get into the core of the building or bird.
Spray the door and look for the leak location.
1 leakage from poor failed caulk and or flashing over or around the door leaking down to the bottom of the door and then out onto the floor 2 poor seals on the door itself.
Test the door for the location of the leak.
Water is leaking in periodic drops at the bottom part of the trim which faces the ground above the door.
If a frame is crooked water can leak into the gaps between door and frame.
First time having a house with a sliding glass door and i m getting water inside.
The track where the screen sits has weep holes.
A sliding glass door is no better than the frame into which it is placed.
Look around your walk out basement door to identify where the water is entering.
If you cannot re create the leak problem inspect the interior of the door for stains or rust.