Advanced is a Chicago based window company along with ClimateGuard. I looked at both along with Alside. From the 7 windows companies I looked at, the above 3 were the worst in performance and reviews for craftsmanship and customer service\warranty. If you can spend a little more, I would look at either Okna, Sunrise, or Soft-Lite. I went with Okna casements. Couldn't be happier!