For this occupied-home window replacement project in Whitchurch, opening checks, frame fitting and finishing are treated as one sequence, with external making good kept as the lead check for this occupied-home window replacement scope. External Making Good leads the review, so we finish external reveals, render or masonry interfaces around the installed frame. We use final checks and fixing points around removal sequence, floor protection, dust control, temporary closure and making good, ensuring we open, close, lock and inspect each installed window before the work is handed over and position frame fixings to suit the opening, frame profile and surrounding substrate, with external making good kept as the lead check for this occupied-home window replacement scope. The last technical check is trims; we coordinate internal or external trims with reveals, frame position and adjoining finishes, with external making good kept as the lead check for this occupied-home window replacement scope. This supports a controlled replacement sequence that keeps completed rooms protected as work progresses.