This was the first time I had used Zimmerman's Roofing; they were recommended by a neighbor. They did a great job repairing our roof. We have not had any problems since they finished. The roofers arrived when they said they would, were friendly, polite, and professional. I was very impressed with the work they did and will be recommending them. I hope I don't need to call them again, but if I have any problems, they will be the first company I call.