"calhoun" wrote in message
...
There is a difference between installing replacement windows and
replacing
windows.

Replacement windows use the existing windows frame. The sash (movable
parts)
are removed and the replacement window is installed in the old sash
opening.
Replacement windows are usually about 3" thick so they fill the entire
opening. They are all custom made to fit your opening. They don't
need nail
fins.

Replacing a window is a more involved job since the entire window
frame/trim/siding, needs to be removed. Many times the new windows are
stock sizes and other alterations to the opening will need to be
made. The
windows will be thicker to fill a wall cavity opening. Nail fins would be
common in this type of install. This type of install will cost more
than a
replacement window install.


I guess I should have been more specific and use the correct
terminology. The quotes are to have the windows replaced with new
windows. They will remove the old ones and get the new ones in.

My concern was with the difference in the installation procedure between
two installers. One said he wouldn't use nailing fins and screw the
window thru the frame while the other uses the nailing fins.

Any advantages/disadvantages on using one or the other method?

Thx,

José.