After looking at several companies in the Peterborough area, we chose Fersina for our cottage windows. We are thrilled with the results. Fersina installed 5 windows for us, including 3 wall cut-outs. From start to finish, our experience with Fersina was professional. We were given an install date, and had two different team members come out to measure in the meantime. The install crew arrived right on time, was respectful, and cleaned up throughout the process. Our master bedroom, in particular, was transformed by our new windows as you can see in the attached photo. We would definitely recommend Fersina windows.