Jason dug up the building trap in our basement after a blockage by a tree root in this pipe caused flooding in our basement. He removed the P-trap, then refilled and cemented the big hole in our basement, finally taking great care to replace the cork flooring as well. He was very prompt and trustworthy. We'd had a recent very bad experience with another plumbing company, so were grateful that Jason was able to effectively diagnose and fix the problem. I'd gladly recommend Jason.