Welcome to our Website! At WDI, our mission is to serve and satisfy all of our customers, without exception, to the best of our ability..New Construction Windows. Typi.y, a new construction window will have a nail fin. When a home is built the framing is typi.y made out of wood studs..Learn the difference between replacement windows and new construction windows to choose the best option for your project.WINDOWS Replacement windows can affect the overall appearance of your home and even increase its resale value. Ameritech Construction offers a wide variety of options for our vinyl reinforced replacement windows..