Replaced with a uPVC vertical sliding sash window featuring 28mm double glazing and Low-E soft-coat inner pane with argon gas. Fully welded multi-chambered profiles with brush seals and tilt-in sashes for easy cleaning and maintenance access now delivering substantial energy efficiency gains. Incorporates child safety restrictors, sash locks, and reinforced hardware for security compliance. Visual proportions and glazing bars replicate traditional timber sashes, preserving the property’s character while meeting modern standards.