Benjamin Franklin Plumbing are flexible and I think that if the customer is using their product, it seems to me that perhaps that would mean that they have to use their services too, but I don't know that.
I have only had them come over one time and they showed up on time and they were very polite and professional. The technician knew the area that I was from so that was nice.
The only thing that I don't like the not having a choice of products, if they give you a quote you have to use their products instead of the ones that you want.