To finish the edge of a tiled window you have several additional options.
Tile around window without trim.
Here s how they do it.
When using a trim choosing tiles which are thin is recommended.
Use corner edging tiles.
Nonetheless you can still tile around a window using traditional techniques meaning that you just install the tiles in a corner without using a plastic trim it would take longer to get the same neat look.
When installing window molding start at the top.
Whether you tile around a window with a trim or with tiles is very much determined by the materials you use.
Most trim carpenters don t even use a tape to trim windows.
Instead of setting bullnose inside the recess set it on the wall surface.
Ceramic or porcelain tiles are often preferred when using trim as heavier stone varieties often have a greater thickness and are therefore less practical.
In addition the tile edging is not expensive it is easy.
Set the recess tiles first then the bullnose.
Tiling around a window is an easy task if you use a plastic tile corner trim.
Use corner edging tiles similar to countertop v caps but without the raised lip that forms the front edge of the counter.
Alternatively depending on the style of your room some people finish with a pencil trim or something but that s not always a good solution.
Cut a 45 degree angle on one end of the trim and hold it so the short end of the angle.
The tile will wrap partway up the window and the trim would sit on top of it leaving some of the tile exposed.
For the part up the wall where there isn t tile the trim would have some sort of backing added to increase the depth where it meets the wall.
The tile isn t finished on the edges i m told that very few tiles are as most aren t meant to show the edges.