St Andrew's, Haugh of Glass
Granite is pretty tough stuff, so the majority of the stained glass windows we work on around Aberdeen are set in timber frames. Elsewhere though, church window apertures are usually formed from cut blocks of sandstone, and the stained glass set directly into rebates or channels cut directly into the stone.
This install in the lovely St Andrew's Kirk, Haugh of Glass, required a bit of impromptu masonry work at the springline - the point on an arched window where the vertical sides start to curve (or "spring") in).
Some slight historic settling at the top of the arch on this window meant we had to open up the channel to accommodate the stained glass arch. Once that was done, the remade window slotted into the channel just fine.