I’m replacing 4 curved windows with Kolbe windows. The contractor says that Kolbe can’t put sash lifts on curved windows, and recommended having Kolbe cut a handhold across the bottom sash. I think ...

Special features, such as windows with curved glass, may be difficult to replace. Repair or retrofitting might be the better option. By Jill Terreri Ramos Q: I recently purchased a one-bedroom ...