[villagetinker]

Originally Posted by spexdr

Thanks, yes a lot of unscrewing! So I wonder if I did one or two windows at a time and it took say six months (bad back needs breaks!) would I need a permit each time? And aren’t permits $100 or so?

Ask the county building department how long a permit lasts, and while you are at it, get a copy of the specifications for the installation of the new windows, so you do it right, or you may get the chance to do it all over again!