BTL has been installing Replacement Windows in Greensboro for over 30 years! Replacement Windows by BTL features a variety of styles and energy-saving features that will exceed your expectations. Add a timeless design to your home by selecting our Double Hung vinyl windows for replacement. Our quality Double Hung installation windows are durable and last a lifetime. Homeowners can’t go wrong when choosing the classic double hung window. As our most popular replacement window, the Double Hung has a convenient tilt-in mechanism that allows for easy cleaning, while featuring distinct styling and endless decorative options to match your home and your lifestyle.BTL has been installing Replacement Windows in Greensboro for over 30 years! Replacement Windows by BTL features a variety of styles and energy-saving features that will exceed your expectations. Add a timeless design to your home by selecting our Double Hung vinyl windows for replacement. Our quality Double Hung installation windows are durable and last a lifetime. Homeowners can’t go wrong when choosing the classic double hung window. As our most popular replacement window, the Double Hung has a convenient tilt-in mechanism that allows for easy cleaning, while featuring distinct styling and endless decorative options to match your home and your lifestyle.