We vetted this company for over a year, along with a few others we were considering, but kept coming back to DES. We checked online resources, including St. of Tenn. and BBB. Everything we checked was fine...insurance, appropriate license, no complaints with the State or BBB. This is a family owned and run company consisting of 5 or 6 people, established in 2000. Mike and Stacy Pfeffer are the owners and Mike Barnett is the Sales Manager. Stacy runs the office and, occasionally, her mother, Sheri (sp?) at times. Our first conversation with Mike P. was at the Home Bldrs. Assn. show in Knoxville. An appt. was then set for a free estimate by Mike B. It took a little while for us to decide what we wanted after talking to him, and a couple of changes, but we finally decided and followed him back to his office to write it up that same day. They require a 25 per cent deposit, which is noted on their website. We had some questions about our existing deck regarding extra support, and Mike P. and Mike B. both came out to inspect it for us. They subsequently placed the order, and shortly thereafter made an appt. for installation. They installed the aluminum frame, roof, screens and subfloor in one day. They placed the order for the window components after this installation in case there are changes (we ended up with a little more extension on the roof and a little more space, thanks to Mike P.'s calculations), and ours arrived and were installed today, not quite 3 weeks after the framing. But we were able to sit on our screened-in porch while we waited for the windows. In fact, we so enjoyed it that we were almost sorry that we didn't just get the screened-in porch. We quickly changed our minds after the windows were installed, though. We purchased the bronze version with dark screens and smoke-tinted windows. It is really beautiful, inside and out and really shades the sun. We picked the bronze over the white and the other colors available because it looks so rich and more modern-looking. The windows are in 4 sections that you pull up or down, wherever you want them, depending upon the breeze and weather conditions, i.e., rain. You can open the windows FROM THE INSIDE section-by-section to clean them, which is great because we are 4 feet off the ground. We are very happy and pleased with the quality of the product and guarantees and warranties that come with each component. We like to spend our money locally, and were glad to find a reliable company here in Sevierville who not only cares about the quality of its product, but also sets high standards for customer service. The owner, Mike P. is hands on and is always available to answer any questions, as is Mike B. The installers, Brian and the others, were great, showed up when scheduled, stayed until the job was done, cleaned up after themselves, and were great in answering our questions. Everything has gone very smoothly, so much so that we are thinking about a smaller deck off the back of our house, maybe next year, and will definitely give DES a call.