window

I recently replaced the keel cable and winch on a 21 San Juan. When I purchased it the window was open and left exposed. Does anyone have experience in repairing this? Hoping to get recommendations of how to properly seal it and what thickness of plexiglass, ect to use. This first time sailboat...

It's rained a lot in Seattle in the last couple of weeks, and i found a source to collect fresh water on the boat... The port side windows is leaking profusluy, so time to rebed. I bet that's it's happened before to many of you, any tips on best way to proceed? Many thanks as always...