For this restricted-access windows project in Mawdesley, opening checks, frame fitting and finishing are treated as one sequence. Removal Sequence leads the review, so we remove existing frames in a controlled order to protect the opening and adjoining finishes, with removal sequence kept as the lead check for this restricted-access windows scope. We use frame dimensions and frame alignment around access route, frame size, lifting method, protection and installation sequence, ensuring we confirm manufacturing dimensions against the surveyed opening before the replacement frame is ordered and check the frame for line, level and square before glazing and final tightening, with removal sequence kept as the lead check for this restricted-access windows scope. The last technical check is external making good; we finish external reveals, render or masonry interfaces around the installed frame, with removal sequence kept as the lead check for this restricted-access windows scope. This supports window replacement planned around the available working and handling space.