The problem with my bathroom is that it has a non-standard shape, so the window needs to be chosen so that it fits the shape. Which company can do this?

Look, there’s no problem with that, and it won’t be too expensive. I had a similar situation when I had to order custom double hung windows. I advise you to check the official website of the bestexteriors company, because I really enjoyed working with these specialists. If you also want to receive quality service for the installation of windows, then this company will provide it.