Windows are the eyes of your home. You can trace the history of windows back hundreds of years. Early models had weights, pulleys and cords to open and close them and were used primarily for home ventilation. From those early days to today, windows still are one of the most important features creating the greatest visual impact on the overall appearance of the house. The advancement in technology has also allowed for the development of energy efficient windows. Windows now can be found in a variety of styles, colors and various energy efficient options. Replacing your old worn out windows is a great investment that not only will improve the look of your home but also save you money in energy cost for years to come.