My wife and I had a rep from American Ext. Roxanne Fresques came to our house for new windows early Mar 2018 and we ordered and had them installed Aug 2018, we tried to get a hold by phone, Boise Id, Greenwood Village Co. but no response. I then read that the co. dissolved in 2018. The #'s 208-424-****, 208-338-****, 303-794-**** are all out of service. Life time warranty???Roxanne's #208-252-****, no answer!!! User's recommendation: Becareful of this co.