Interstate specializes in both vinyl windows and their proprietary CompositWood line, each engineered to deliver long-lasting comfort, low maintenance, and thermal performance. Whether you’re looking for traditional double-hung windows, casements, sliders, or architectural shapes, Interstate offers a comprehensive range that meets both aesthetic and climate needs. 

Their vinyl windows are fully welded for strength and durability, offering cost-effective, low-upkeep solutions. Meanwhile, CompositWood blends the beauty of wood with the stability and weather resistance of engineered materials, ideal for homes facing the varied humidity and temperature shifts of the Northeast.