The wall under the window was always wet whenever a rainy day came. But the owner didn't even know where the water invaded from.
He sent the photo to us asking for help, and for sure, the issue came from the window. As you can see in the photo, it looks like the water leakage was caused by the tiny wall cracks near the window. Therefore, what you might think that needs to be done is just apply some silicon on the wall crack right?
Do you agree with that?