Most local window places make their own so asking a brand will vary... You can stick with mainstream brands like Anderson or Pella or beyond. Anderson is a good contractor grade window and likely the best you will need but you will pay a lot more than finding something of similar quality form a local place. Pella can go form lower end to triple pain to semi custom... beyond can be custom windows by big names like Jeld-wen, which is the same as Masonite at Lowes. In my opinion if you want a well made window by aluminum do you need it.. no but it is made far better than vinyl... if you are looking to save on heating costs casement windows seal a lot better than double hung... do you research about r factors, thickness of glass, argon filled and ask questions from there at different places. However in the end all windows let in a lot of cold and hot air as that is the nature of glass so a window that costs 200 more than a reasonable quality window will never give you a return of 200 in heating and cooling costs but may keep more noise out.