For this white uPVC windows project in Stretford, opening checks, frame fitting and finishing are treated as one sequence. Frame Dimensions leads the review, so we confirm manufacturing dimensions against the surveyed opening before the replacement frame is ordered, with frame dimensions kept as the lead check for this white uPVC windows scope. We use fixing points and glass specification around frame colour consistency, trims, sealant, external finish and hardware, ensuring we position frame fixings to suit the opening, frame profile and surrounding substrate and match glazing type and pane configuration to the intended room use and project specification, with frame dimensions kept as the lead check for this white uPVC windows scope. The last technical check is final checks; we open, close, lock and inspect each installed window before the work is handed over, with frame dimensions kept as the lead check for this white uPVC windows scope. This supports a consistent white window package with perimeter finishes coordinated around the frames.