sisltd.ca 5 Jeff Warren in Calgary @2015-11-02 after ordering windows and doors with Lux . SIS was the only company to help me with my dilema. Lux Windows would not install my window and doors , because the got into an spat with my Condo Board. Now SIS is not perfect they are a smaller company who is extremly busy. So it took about 3 months to get them out to work. However Ryan is the cats ass. He doesn't talk very much however he is one of the best installers out there. He took his time to make sure all the siding outside matched with everything after installing the window. Once again they are very busy, however if your patient you will get what you wish for. If you want to phone me for a reference , please do my number is 403 589 0488.