I originally was on the website to price a slider for my breezeway. When I saw that the small size of that order would trigger a $250 surcharge, I added the replacement of some non-functional windows to the order. I had a question on the available sizes and got great assistance over the phone from Kerry in their office. Once I put the order through, an appointment was made for Brian and Tom, the installer, to come to the house to do the actual measurements, and bring sample windows so that I could see what the different types look like. Another positive with Renoviso – Brian actually tried to talk me out of the more expensive fiberglass windows until I was really sure that I preferred fiberglass to vinyl. It was so nice to work with someone who wanted to be sure that I was happy with the final choice, even if it would reduce the amont of the total order. While they were there, I realized I might as well bite the bullet and replace ALL the windows. They had no problem doing the additional measurements. There was some back and forth on the ordering to verify the number of panes in the windows and they came back to the house another day to check some measurements. Tom had some concerns about the work involved in replacing the slider and ended up recommending that the slider replacement be deferred until I replace the deck it opens out to, and add the slider replacement to a deck rehab project. I was amazed that a vendor would recommend dropping part of an order and losing that part of the sale. I had felt that I was in good hands with these guys, but that was the clincher! He also added a repair to a porch post that had nothing to do with windows! Kerry in the office and Brian were great to work with too and always available to answer questions. The scheduling of the installation was well-coordinated with my work schedule and the guys who did the installation were great. They were there for two days, and I think they left the house cleaner than they found it each day! I love the windows and highly recommend Renoviso, and Advantage Siding who did the installation.