Originally Posted by travelover
You can pull off the moldings and foam seal the frames, then replace the moldings.
This is what we will do. It feels like that the leak may be happening due to a lack of insulation around the window. Looking from the outside, it seems that the original windows were bigger than the current ones. So, maybe in the process of re-sizing the opening, adding insulation was not taken in consideration.
Thanks for the ideas. Be well