Weatherization is the process of making a building more energy-efficient by improving its ability to maintain a comfortable indoor temperature. This often involves sealing gaps and cracks, adding insulation, and upgrading windows and doors. By reducing air leaks and enhancing insulation, weatherization helps keep homes warm in the winter and cool in the summer. The benefits of weatherization include lower energy bills and increased comfort for residents. It can also contribute to environmental sustainability by reducing energy consumption and greenhouse gas emissions. Programs for weatherization are often available through government initiatives and local organizations, helping homeowners access these improvements.