I want to know if there is a way to take out the old weights in my windows and put a different shash in there?

Answer 1

Yes, the window frame can be taken apart, exposing the sash weights. They can be removed and the opening can be refitted to the newer window. If you're handy, take the frame apart carefully, and you'll see how everything goes together. You might need help refitting the frame to the new window, but it isn't any really complicated procedure.

Good luck.