Mike Diamond Plumbing took advantage of my elderly mother and charged her over $1, 000 to install a toilet, which should have been $150 at the most. This was all installation, does not include the cost of the toilet itself. They obviously have a practice of preying on elderly or ill people who know nothing about plumbing and overcharging them. Mike Diamond has an "F" rating with the Better Business Bureau (see for yourself http://www.la.bbb.org/Business-Report/Mike-Diamond-Plumbing-Inc-13052945 ). I have just started the process for a refund and will update if I receive any response but I'm sure this will come down to small claims court. read full review »