I want to replace a round vinyl window that is the original in our 90's house. Want to replace with like size and shape. What are the steps to work out the R/O for this window, given I can't access it from the outside? Do I just measure the diameter of the opening and add 1"?
The window is about 10' off the floor on the inside and about 40' above grade on the exterior. How do I get the old one out? Do I have to pry out the trim on the exterior? Or do I cut at it from the inside? Thanks in advance.