After a few years, roof shingles can begin to grow mold on them, fall off, or lose their color due to the sun. My shingles were much discolored and looked awful. I called A-Top Construction to take care of this problem and make my roof look like new. They did a spectacular job, quickly stripping off the old shingles and replacing them with new ones in only a matter of days. I would recommend them to anyone who is considering replacing their old roof or even building a roof on new construction.