gap between outside edge of casing and wall
I am rehabbing a building that I just bought and the previous owner hastily installed new casing around the windows such that there are pretty big gaps between the outside edges of the casing and the drywall. How do I close this gap without taking off the casing and bashing the drywall/plaster or removing the casing and adding wood strips to the back? There has to be a way since I had Feldco install some windows on another building and they left substantial gaps(1/4″) between the casing and the wall and I couldn’t imagine them doing this unless there is a common remedy. On that building I used joint compound to fill the gaps but then I had to sand the area a million times and then paint. I dont have the time or money to do this to 20 windows. I have considered trying to fill the gaps with caulk but it looks awful and amateurish so that is not an option. What is the best way to do this?