Preservation Brief 9 remains one of the most influential resources in historic window restoration. Learn what the National Park Service guide says about repairing historic wooden windows, improving performance, and determining when replacement is truly necessary.

Many homeowners assume modern replacement windows last longer than historic ones—but the opposite is often true. Learn why old-growth wood, repairable design, and modern restoration materials make historic windows one of the most durable features of a historic home. Austin Historical typically is the best historic window restoration solution.