For this turnkey window replacement project in Aughton, opening checks, frame fitting and finishing are treated as one sequence. Locking Points leads the review, so we align sash locking points and keeps so the window closes evenly around the frame. We use ventilation and trims around survey dimensions, product specification, installation sequence, finishing and final checks, ensuring we coordinate window opening and background ventilation with the room's intended use and coordinate internal or external trims with reveals, frame position and adjoining finishes, with locking points kept as the lead check for this turnkey window replacement scope. The last technical check is surface protection; we protect floors, worktops and nearby finishes while removal and installation work is carried out, with locking points kept as the lead check for this turnkey window replacement scope. This supports a complete replacement process with each stage prepared for the next.