We hired Windowrama to install replacement windows and insulation in our home. We went through the Green ON program and the office staff was very helpful in navigating the process and paperwork. The initial visit with the window salesman, Andre, went great. The measurements were done in a timely fashion. The window installation was delayed a bit as they had a large commercial job they were held up on. However, our windows were installed early enough in the season for us to get the benefit of the energy efficiency. The workers who installed the windows did a great job, despite our old home with its quirks and levelling challenges. They replaced some rotted wood in some of the window frames. The insulation crew was terrific as well. We have an old home with soft horsehair plaster walls and they took great care to blow in the insulation without damaging the walls. The crew offered to install our bathroom fan vent in the attic, which we had been meaning to do ourselves but hadn't, at a very reasonable cost. It was great to let them take care of it. A cover for the attic door and some insulation in the basement was not included on the Green ON paperwork, and Andre made sure it was added without extra cost to us. They did need an additional day beyond their original estimate because some workers were pulled from our job to another. They were able to work with our schedule to finish the last day's work. Both crews arrived on time each day, were very professional and respectful, kept us informed of their progress, and were as clean as they could be given the messy work they had to do. We noticed a difference in the temperature of our home immediately. We recommend them highly and would use them again.