"Bill Rah" wrote in message
.. .
The exterior wood window sill on one window has rotted away over the
years.
I have aluminum single-hung, single-pane windows and a masonite-like
siding.
Is there a way to replace the 2"x6" sill and not have to remove the entire
window? All of the windows and siding will eventually be replaced but I
need
to get a few more years out of them.

I've replaced a few with pressure treated wood. If your's are like mine,
they are not really a structural part, that is they are not an integral part
of holding up the window. Not much nailing required and I sealed them with
caulk and painted.
Frank