For this egress-focused windows project in Wigan, opening checks, frame fitting and finishing are treated as one sequence. Safety Glazing leads the review, so we check where safety glazing forms part of the project specification around low-level or risk areas, with safety glazing kept as the lead check for this egress-focused windows scope. We use handle positions and final checks around sash dimensions, hinge arrangement, clear opening, handle access and restrictors, ensuring we check handle height and access against the room layout and opening style and open, close, lock and inspect each installed window before the work is handed over, with safety glazing kept as the lead check for this egress-focused windows scope. The last technical check is sill level; we coordinate the frame base with the internal sill or window board and the external weathering detail, with safety glazing kept as the lead check for this egress-focused windows scope. This supports an opening configuration coordinated around the specified clear-opening requirement.