On this flush-sash windows project in Prescot, glazing beads is the first installation control and we check bead seating and corner joints after the glass is installed, with glazing beads kept as the lead check for this flush-sash windows scope. Kaizen Windows & Doors links opening survey to frame proportions, sightlines, opening sizes, glazing and external finish, making sure we check the existing opening, frame position and surrounding finishes before final dimensions are confirmed, with glazing beads kept as the lead check for this flush-sash windows scope. We also review fixing points before making good and position frame fixings to suit the opening, frame profile and surrounding substrate, with glazing beads kept as the lead check for this flush-sash windows scope. Finally, opening configuration is checked so we can confirm fixed and opening sections against ventilation, access and furniture or worktop positions, helping deliver a cleaner flush-sash appearance with the installation coordinated around the existing openings, with glazing beads kept as the lead check for this flush-sash windows scope.