Window performance on this timber-board reveal windows installation in Walton-le-Dale depends on more than the frame profile. We start with internal making good and 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 timber-board reveal windows scope. frame dimensions is then coordinated through board depth, frame setback, end returns, seal line and decoration, so we confirm manufacturing dimensions against the surveyed opening before the replacement frame is ordered, with internal making good kept as the lead check for this timber-board reveal windows scope. Before final finishing, we review head interface 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 timber-board reveal windows scope. We finish with perimeter sealing and form a continuous weather-resistant seal around the external frame perimeter, supporting timber internal boards aligned neatly with the replacement frame and reveals, with internal making good kept as the lead check for this timber-board reveal windows scope.