I called Express Rooter to get advice and a quote for a backflow preventer. Jason Gibson came to answer the call. He was very friendly, personable, and most importantly knowledgeable of the rules and regulations in my area of Mississauga. He even let me know that in my area of Mississauga, I probably didn't even need one due to the lack of flood concerns. As I was undergoing a renovation, I decided to go ahead and get it installed anyways for peace of mind. Jason took care of all the paper work aside from the permit (only I could get that), arranged everything quickly so as to meet my schedule, and gave me some very helpful pointers about the plumbing in my house in general after the initial video camera check of the drainage out of the house.
I also asked Jason about a basement leak I was experiencing, and Jason wound up identifying the exact spot that was leaking. I finally saw the tie rod hole actively leaking a few days later after 3 days of constant rain, and it came from the exact spot Jason indicated.
These guys know their stuff, and I can rest easy knowing the backflow preventer was installed right, the first time.
Thanks Jason!