/diy/ - Do It Yourself

wtf, home owner attacking repairs as they come

I'm not sure if my floor is somehow sinking, or if initial installation was just super shitty and I never noticed. I have found large roaches twice recently this week and they went under these gaps to escape my shoe.

I want to install new quarter round trim pieces, and seal with the door/window silicone to prevent this and seal these gaps. I do not have a brad nailer, and they seem to run for $300 for a tool I wont use very often. I have access to a compressor if air brad nailers are cheaper. Or should I get a hammer and nails for the old fashioned way?

Suggestions on how to fix these gaps? Am I on the right track with new trim + silicone? Brad nailer/crown molding purchase? Or nail and hammer? Suggestion on brad nailers?