For this upper-floor windows project in Padiham, opening checks, frame fitting and finishing are treated as one sequence. Opening Survey leads the review, so we check the existing opening, frame position and surrounding finishes before final dimensions are confirmed, with opening survey kept as the lead check for this upper-floor windows scope. We use fixing points and restrictors around external access, frame handling, restrictors, sill height and making good, ensuring we position frame fixings to suit the opening, frame profile and surrounding substrate and configure restrictors where controlled opening forms part of the brief, with opening survey kept as the lead check for this upper-floor windows scope. The last technical check is internal making good; we repair or finish internal reveals, sill zones and decoration interfaces around the new frame, with opening survey kept as the lead check for this upper-floor windows scope. This supports upper-floor windows installed through a sequence planned around safe access and operation.