I was having huge problems with my plumbing. It was always getting stopped up and giving out this awful smell always. My husband tried to fix it a lot but we would think it was fixed only to find it doing the same thing the very next week. Anyways we were really afraid of what it was cost so we figured wed just see what it cost to fix it. We called several places and D &AM were by far the cheapest and courteous in my home. They came in and spent most the day in my bathroom-I thought for sure that the cost would go up but it didnt. They fixed it and it tayed fixed. They were great