For this boarded-reveal windows project in Llangollen, opening checks, frame fitting and finishing are treated as one sequence. Thermal Junctions leads the review, so we coordinate the frame perimeter with insulated reveals or cavity details to limit avoidable cold bridging, with thermal junctions kept as the lead check for this boarded-reveal windows scope. We use final checks and sill level around frame setback, board thickness, corner beads, sill finish and seal line, ensuring we open, close, lock and inspect each installed window before the work is handed over and coordinate the frame base with the internal sill or window board and the external weathering detail, with thermal junctions kept as the lead check for this boarded-reveal windows scope. The last technical check is packers; we support the frame at suitable points so fixing does not pull it out of line. This supports internal boards finished neatly into the new frame position.