Take a vacation from stress, and leave the work to us! PJ’s Roofing, Inc. is a full-service roofing contractor located in Frederick, MD. Whether you have a large roof replacement or a small-complicated roof repair, we are happy to assist you in completing the project. PJ’s Roofing, Inc. is a family-owned and operated business that successfully serves the Maryland and Pennsylvania areas. Over the years, we have maintained an A+ business rating with the BBB and we would love to show you why!