For this deep-reveal windows project in Standish, opening checks, frame fitting and finishing are treated as one sequence. Internal Making Good leads the review, so we repair or finish internal reveals, sill zones and decoration interfaces around the new frame, with internal making good kept as the lead check for this deep-reveal windows scope. We use frame dimensions and head interface around frame setback, reveal depth, boards or plaster, sill finish and handle clearance, ensuring we confirm manufacturing dimensions against the surveyed opening before the replacement frame is ordered and coordinate the frame head with the retained lintel, cavity closure and internal reveal, with internal making good kept as the lead check for this deep-reveal windows scope. The last technical check is perimeter sealing; we form a continuous weather-resistant seal around the external frame perimeter, with internal making good kept as the lead check for this deep-reveal windows scope. This supports deep internal reveals finished around the selected frame position without compromising operation.