The most common type of challenging windows requiring treatment are either arched, circular or triangular shaped windows. Italian stringing is the answer for fixed curtains that can nevertheless be opened and closed.
In some cases, templating is something we can offer if you're wanting to fit a roman in a tricky shaped window meaning your roman can mimic the shape of the window.
Another challenging window to dress are skylights we have solutions ranging from motorised roller blinds to more intricate winter garden systems