This past summer, 2013, I had the transom windows replaced on my porch by Royal Tech. I dealt with Curtis who was a very good contact. Curtis made sure that the vinyl trim was an exact match for our existing windows. The installation crew took 2 1/2 hour to remove and replace the old windows. I now an area that is comfortable, yes no more whistling of wind passing through the single pane, ill fitting windows. I will send as many people as I canto Royal Tech for windows and doors.