Answers

Its sounds like you have a double hung window that slides up and down check to see if the outer top window can slide up then lock it. If the glass is sperating from the frame you can take it to a glass replacement company and they will fix the frame and glass if not vinyl welded

Yes we have siding positions open and hardy siding installation open please call and stop in our office/showroom

Valarie they dont make them in white but you can get them in a mill finish for under $10

They have a excellent educational center 

Wood is the best attic stairs.