Sliding sash windows are a defining feature of Victorian and Edwardian architecture. The characteristic up-and-down sliding action and elegant proportions give period properties their unique character — and at Lancashire Window, we help you preserve or recreate that look using modern materials.

Our uPVC sliding sash windows feature a smooth spring-balanced mechanism that replicates the feel of original box sashes, along with authentic woodgrain foil finishes, traditional run-through horns, and period-style glazing bars. The result is a window that looks and feels completely authentic, while delivering A-rated thermal performance and modern security.