Simonton vinyl windows are the worst I’ve ever experienced. These Simonton windows are not energy efficient. They let so much cold air in that any little bit of condensation on the windows turns to ice. I’m a REALTOR who’s shown thousands of homes and I’ve never seen vinyl windows this bad before. Simonton was notified of the problems with these windows and they simply said this is normal for their windows. If this is normal, I would not recommend Simonton windows.
Update – in September 2018, Simonton sent a representative to inspect the windows and of course, he found nothing wrong with the actual windows. They work as designed. He found a little construction dirt in a channel between the windows and cleaned that out. He said that may help with the air infiltration some. So far I’m not seeing any improvement. So I still would not recommend Simonton windows.