Be 100% certain that you get a written quote from Master Plumbing because they will come into your home and suggest that you should have a job done other than what you originally talked about.Then they will charge you an exorbitant fee for doing the their new "improved" suggestion.
Dont' get ripped off! Beware!!!! Be sure to get it in writing and have them only do that work at the price you agreed to. Buyer beware!
You don't want to pay double or more for the work you wanted like I was suckered into!Protect yourself and beware!