good luck getting any service after installation. My single pane windows had a better insulation value then these.
I like watching the curtains move when the wind blows though the slider part of the window. save your money and go to a better company. I called for service. They only do service work one day a month.
It seams that every window lets the cold in. I have been waiting two months for the owner of the company in Reno to call and always get he will call you.
Good luck on this one. I tried the corporate office a few times and pretty much got the same thing
Product or Service Mentioned: Window World Customer Care.
Reason of review: Poor customer service.