We were asked to look at repairing these rotten casement windows. They’d been repaired in the past using untreated pine. The owners had kept on top of the decorating and filling, but the rot that had already set it was worsening and it was time for a more extensive repair.
We removed the sill from the previous repair which had been glued and screwed in place. The previous repair re-used the original oak sill but the frame behind had rotten to the point where it would no longer support the sill. The oak sill was still in great condition, so we tidied it up to re-fit later.
We traced the rotten timber up the frame to good timber so that we could form joints for the repairs that would be carried out in Accoya. Using most of the clamps we had, the glue up for this job was worth a photo.
While the glue set, we go to work on the sashes, repairing the bottom rails and stiles and re-glazing and puttying where needed.
We try to identify the root cause of rot to windows where possible. In this case, the home owner had already identified and fixed a leaking gutter joint and had also noted the wooden lintel above the window was allowing rain into the brick work. We finished the window repairs by forming an Accoya drip the would keep rain off the timber lintel and help direct driving rain away from the window beneath.
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