Wood is a demanding material that can be crafted into solid, beautiful, and elegant windows and doors. The thermal conductivity, sustainability, and structural integrity of wood in modern windows and doors often surpass that of other materials. With proper care and maintenance, wooden doors and windows can last well over a hundred years. This book provides the necessary technical information and tips for renovating and maintaining wooden windows and doors. It imparts knowledge about construction and properties and assists in diagnosing damages and their rectification. All components—from the sill to the door strike plate—are addressed in detail. Information on proper ventilation is covered, as well as questions regarding energy-saving regulations. Through numerous illustrated examples, the authors offer practical guidance for damage repair.