I replaced my windows two years ago (2006)with American Jewel Window Systems. 13 double hung windows, and 2 crank out windows ( I think the casements)
Admittedly, the window seemed good when they guy came out and presented to me. The numbers on it looked good, so we picked them out of the 4 other companies that came over.

After they installed it, I started noticing when I move the window it seems loose...on 2 of the windows, the sash doesn't stay up and when I open it; the sash is loose. The other day the locks on the window just broke...I have been calling them since January and the problem is still isn't fixed. I called them twice today a lone and all I got was a voice mail...

I don't even know what to do...they manufacture the window and won't even come out to fix it. I might have to take them to court.

In 2000, I had 6 American Jewel windows installed in my condo. This week I just had 8 American Jewel 3000 series installed. Three in my family room and 5 in my bedroom. They are much thicker than the previous windows, however, I am noticing a slight draft in the family room. Let me qualify this statement by saying it's been colder and windier (50 mph) than usual for the past 2 days. I've had to turn my heat 2 degrees above my normal setting with my older (inefficient windows). I'm hoping to see better gas bills for the rest of the winter and definitely the summer.