I bought a new house in November 2009 which had new windows recently installed by Window World. In April 2010 a bird flew into one of the windows, cracking it all the way across. We called the company attempting to purchase a new window outright, and they told us the windows were under warranty but we had missed the transfer period (the former owner neglected to tell us about a warranty). For weeks we kept calling to get someone to come assess the damage to no avail. Finally my husband contacted the corporate office and the local owner called back (very huffy) and said he'd be over the next week to look at the window. NEVER HEARD FROM HIM AGAIN. A month and a half later, tried to get order the window using the one serial number we were able to find. They charged us $50 and a guy showed up w/the window - WRONG SIZE. He was going to throw it away, so we kept it, but he was to return to the store and order the correct window. Just called today, August 31, 2010 - gosh, they filed the ticket away and never ordered the new window. This company is completely disreputable and should never be used!