Place a tile against the wall and add a tile spacer to the side of it.
Tiling a bathroom wall with a window.
In order to tile around a window you have to spread thin set on the wall by using a notched trowel.
Anytime the tile meets the window itself i use a sealant.
Then measure around the window as to cut the tiles with a score and snap cutter or a wet saw to fit into location.
Use bullnose tiles to round off the edges of the window frame and tile the wall first.
You shouldn t need to cut the tile unless it is an end tile that completes the row.
When installing the tiles around windows make sure you first secure the tile corner trim in thinset.
You can expect to spend about four to five hours tiling a standard 36x40 inch double hung window.
Mark the tile where it overlaps the full sized tile and number it on the back side.
Another thing i offer my clients is a shampoo niche.
This will allow you to leave room for the adhesive that will secure your tiles to the wall.
When tiling bathtubs backsplashes and other areas that use limited quantities of tile buy the best quality tile you can afford.
That way you can make sure the grout lines of the recess are on the same plane as the wall.