I hired CJ to replace the roof on my addition last year because of severe leaking. I was a brand new homeowner at the time, so I knew absolutely nothing about roofs. This part of the roof was originally done by the previous home owner in three tab shingles. When I spoke with CJ, I let him know that I wanted a higher quality and longer lasting roof, so he suggested architectural shingles. He came over, did the job, and everything seemed fine... until the first heavy rain. Then, water started pouring through the hole in the ceiling where the smoke detector is installed. I contacted CJ about this, and he finally came by to look at the problem several weeks later. After inspecting the roof, he said there was no way that the roof he installed could be leaking, it must be coming from somewhere on the flat roof on the main part of the house. Like I said, I knew nothing about roofs, so I took his advice and got some patching material and reinforced all of the seems in the flat roof. It continued to rain, and my roof on the addition continued to leak, causing damage to the walls and ceiling. I contacted CJ again and it took him several more weeks to come back out. When he finally came, he ran the garden hose over the part of the roof that he installed and saw for himself that yes, the leaks were due to problems with his work. He sent a guy over to fix the problem, which really just consisted of putting tar over the problem area. To his credit, he did send someone over to fix the drywall as well. But here's the real issue and the reason for the low rating: due to the very small pitch of the roof on the addition, architectural shingles were completely inappropriate. Three separate roofers have since confirmed that he should have done flat, rolled roof, as the shingles do not allow for adequate drainage during heavy rain. So, we have continued to have problems. I have given up on trying to have CJ fix the issue and have hired another company to come out and install a flat roof, which is costing us $2700. We paid CJ $2200 for his work, which I'm basically just writing off as a very expensive lesson.