I had my windshield replaced on my 2001 Toyota Camry and I'm sure the installer screwed something up real bad because when it rains (and it rains, and rains and rains in Vancouver, BC) the driver side floor is soaking wet.
I'm not sure what he's messed up, but there is a slow, steady drip of water (see picture below) around the boxed in area.
The only other work I've had done is I had a module (or whatever it's called) that lies behind the backseat go and a mechanic had to take quite a bit apart to install the new module and he said he had to remove some of the plastic (that I've boxed) - maybe he put a hole into the firewall???
I'm sure that it's related to the windshield change as I used a guy that was half the price of most shops in town. I'd take it back to him... but he's gone.
Any ideas what I should look for, or better for me just to take this to someone to have looked at?