Comfort Windows Buffalo put in windows by our fireplace. There were no windows there before, just bookshelves that we took out. Basically they came in and made the hole and brand new windows for us. I was with them the whole day, and we had a dog in the house. They were friendly and took time out to make sure the dog was comfortable with them. They were clean, organized, and didn't complain about anything. I just thought the job was very professionally done!