I have a 120 year old wood window sill and jams that I need to rebuild, along with replacing the siding around it. The area is totally rotten because of water splashing off an entry roof onto the corner of the window. The window sash and glass are still in good condition, but the rest is toast. I actually fear that there might need to be some studs that need replacing as the water infiltration has caused substantial plaster deterioration as well. The root cause (gutter issues) will be repaired this weekend, then I will begin on the other repairs later next week.
It does have aluminum triple track storm windows that have protected the window sash, but have also retained the water on the sill, resulting in rot and now an ant population.
Other than hiring it out, does anyone have any suggestions as to how rebuilding the jam and sash? I have the typical tools (table saw, power miter saw, osculating tool, pry bar, first aid kit…) and have done just about everything else imaginable when it comes to DIY repairs and improvements, but the replacement of a jam and sills are new to me.