On this bathroom windows project in Accrington, perimeter sealing is the first installation control and we form a continuous weather-resistant seal around the external frame perimeter, with perimeter sealing kept as the lead check for this bathroom windows scope. Kaizen Windows & Doors links hinge positions to privacy glass, opening restrictors, ventilation, sill detailing and internal sealing, making sure we set opening sashes so hinge direction and swing work with the adjoining room, with perimeter sealing kept as the lead check for this bathroom windows scope. We also review ventilation before making good and coordinate window opening and background ventilation with the room's intended use, with perimeter sealing kept as the lead check for this bathroom windows scope. Finally, opening survey is checked so we can check the existing opening, frame position and surrounding finishes before final dimensions are confirmed, helping deliver bathroom glazing coordinated around privacy and controlled ventilation, with perimeter sealing kept as the lead check for this bathroom windows scope.