Wrap the window with same material as your countertop (e-stone or granite), especially on the bottom edge and make sure that the fabricator tilts the edge (1/4" slope) toward the inside of the shower.

" This window will be in the shower area. "

How was the window waterproofed? Trim and sill should be Azek or another composite material.

I too need to know how this was waterproofed the other window obviously not in a shower so a toatlly different thing.

Good questions re: waterproofing the window. The GC says that this existing window is of such material that we don't need to replace it now that it will be part of the shower. It was originally simply above the vanity.

@coastal_vibe, when you say "wrap the window" what exactly do you mean? Thank you.

See photo below of my primary bathroom. The window is tempered glass in a white vinyl frame. The white e-stone forms a perimeter above the window edge, the sill, and the two sides. The tile butts up to the e-stone. If you are using a countertop material with a lot of movement, it may be difficult to get the 4 pieces of stone to match up -- in that case, I would put stone on the sill only and tile the top and sides

" The GC says that this existing window is of such material that we don't need to replace it now that it will be part of the shower "

B.S., needed to be reset and waterproofed ideally. At the very least tied in with a membrane to the wall waterproofing. The window itself is vinyl and is not affected by water, but water will get into the wall around it. The framing around it is wood. His lack of knowledge on that simple issue brings to my mind more questions on his overall competence. What was the rest of the shower waterproofing? Pan built and how or was it a preformed pan?

+1 to @millworkman comment. Red flag.

What waterproofing system was used for the walls and pan in the rest of the shower? The membrane on the wall has to be tied into the window itself. Windows are not meant to keep out water from the inside. And a lot of people don't know how to flash them to keep water out from the outside!

@Minardi: The demo was just completed, no waterproofing yet. They are moving the plumbing this week.

Elaine, review your contract to note the waterproofing steps. Take photos of all products used and of each layer/step in the reno. Probably a good time to read about waterproofing and tile setting standards so you can catch aberrations in real time since some of the pros here are noting red flags.

I’d recommend keeping the window sill for a nice finish. For paint, white semi-gloss looks great, but matching it to the wall color can also work. Just use moisture-resistant paint.

NO, you do NOT keep any wood sill in a wet area. Dumbest idea ever.