A pebble from the lawnmower that flies against a window. A drink set down too heavily on your glass-topped coffee table. A favorite vase tipped over by your curious cat: These are the types of ...

Maybe it was a flyaway baseball that sailed through a window, who knows or will admit to it? The job of repairing a broken glass windowpane in a family home is a common one. And a broken windowpane is ...