First of all: The four stars for quality really goes to CGI who manufactured the doors and windows. I entered a contract with USA Green Contractors (USA GC for the rest of the review) to replace all of my windows & doors middle of January. They contacted me end of April to begin installation. I met the crew when they arrived at my home the first day around 9AM. I told them I would stay out of their way for the install process and went about my life. Day 2 they arrived around 11AM which did not matter to me since they stayed until 7PM. Day 3 they arrived around noon which did not impress the building inspector at all since he arrived at 9AM that day. INSPECTION FAIL #1. I reported the missed building inspector to USA Green Contractors who assured me they would take care of everything. Day 4 the building inspector arrived AROUND 9AM to find no workers present for a second time. INSPECTION FAIL # 2. The crew showed up around noon again on that day, worked for a while then took their tools and left my home with open door and window frames for the next TWO MONTHS! After the second failure to meet with the building inspector USA GC was forced to hire an engineering firm to certify the installation and no one at USA GC was being proactive or keeping me informed about anything while my home was open to the outdoor world all eight weeks. Finally, end of June the crew arrives to “finish the installation, EVERYTHING done”. I told them to let me know about 30 minutes ahead so I could come home to lock up… but got a call in the afternoon. They told me they were done and leaving. When I got home I noticed most work had indeed been completed but there were crucial door and windows components missing that are specific to the brand. Stuff you can’t get at Home Depot. I sent photos and a detailed explanation of what was missing. They sent a tech who did not not know what he was there for and did not have the correct parts to repair/finish the installation. For the next two months I had to call and email USA GC repeatedly because, as I’ve stated earlier they are proactive about nothing. The parts are expected… they didn’t arrive. The parts are expected… they didn’t arrive. The parts are expected… they didn’t arrive. Repeatedly until they actually did arrive and were finally installed four months after my installation began. I haven’t even mentioned that they failed to cover my furniture and ordered the wrong entry door, which I did not complain about because it’s close enough and I didn’t want to wait months for a replacement… Entering a contract with USA GC is the worst purchase decision I have made in my entire life. Every penny of the $25,000+ investment is a needle of aggravation in my soul. BUYER BEWARE. If you decide to ignore this warning and your project goes wrong you will deserve what you get!