On this deep-reveal windows project in Whalley, internal sealing is the first installation control and we close the internal frame perimeter cleanly before trims or making-good work is completed, with internal sealing kept as the lead check for this deep-reveal windows scope. Kaizen Windows & Doors links installation access to frame setback, reveal depth, boards or plaster, sill finish and handle clearance, making sure we plan handling and working access before existing frames are removed, with internal sealing kept as the lead check for this deep-reveal windows scope. We also review reveal dimensions before making good and check internal and external reveal depths so trims, plaster and handle clearances can be coordinated, with internal sealing kept as the lead check for this deep-reveal windows scope. Finally, fixing points is checked so we can position frame fixings to suit the opening, frame profile and surrounding substrate, helping deliver deep internal reveals finished around the selected frame position without compromising operation, with internal sealing kept as the lead check for this deep-reveal windows scope.