Nestled amidst the historic streets of Trenton, New Jersey, the National Historic District encompasses a captivating array of architectural styles, from Victorian and Beaux-Arts to Queen Anne and Italianate. Among the district’s most striking features are its diverse array of windows, which contribute significantly to the neighborhood’s character and charm. Homeowners and property managers alike are responsible for maintaining these historic windows, ensuring they continue to enhance the district’s architectural integrity. Fortunately, a wide range of low-cost window maintenance options are available, such as regular cleaning, hardware lubrication, and weatherstripping repair. By investing in regular maintenance, residents can extend the life of their windows and preserve their historical significance. For those seeking to replace their historic windows, flexible options are available that balance preservation and functionality. Replica windows, designed to mimic the original design, can maintain the district’s aesthetic while incorporating modern energy-efficient features. Alternatively, preservation-grade windows offer a more cost-effective option, incorporating energy-efficient technology within the existing window frame. By exploring these flexible solutions, homeowners can enhance the comfort and efficiency of their homes without compromising the historical integrity of the 5th National Historic District.