A lean-to is an ideal alternative to a traditional conservatory and adds a sleek and modern design to any home. Perfect for creating additional space, the single sloped our lean-to can be any width and can project into your garden for up to about four metres. The Uni Windows Lean-to can be installed just about anywhere. The variable roof pitch gives you a huge choice of looks, from fitting it under the first floor window ledges or right up to the eaves. Clean lines and minimal fuss.