ZipDee has excellent customer support, and you can find your nearest authorized dealer via the web at ZipDee.com
Almost eight years ago, my Airstream dealer, Ace Fogdall RV (Cedar Falls, IA) ordered and installed three ZipDees on my Overlander. These awnings still look new and are among the easiest that I have found from an operations standpoint. At this time, they are about the only option for Vintage Airstream and Argosy travel trailers. I am still waiting to get my Minuet painted so that I can have ZipDees installed on the curbside and over the streetside windows.
Good luck with your awning search!