Don't know how you see that as obvious that they work somehow for the silverline company. I don't see that at all. And although Stephen probably didn't have any need to bring up spelling, maybe a model number of the window would have been helpful. And within her post she has proved that silverline at least has made an attempt to come out and fix the problem. numerous times. Maybe the houses are just cheaply built. If her construction is weak and the walls are moving that could be the case for them needing to change the insulation around the window. And any contractor building 22 houses with the least expensive window on the market probably cut other corners as well. Try Pella windows next time. You get what you pay for.... Oh yeah but you don't have to live in the house.