Last night we locked outself out of our house. I tried to get in through the garage window, and bent the bottom sill up. I am unable to get it to go back down, so I am wondering if I can just replace the sill, or do I have to replace the whole window frame now. The sill is aluminum, and the house has brick going up the house, then vinyl up the rest of the house. I see on the window sill that it just has a lip on the underside of it, and its supppose to slide right back inbetween the walls. Any help would be truly appreciated.