Mr. Rooter Plumbing of GTA

We had to replace a cartridge in our shower. the plumber was friendly quoted between $100-$450 for the job but stated $450 was highly unlikely. When the plumber was done he shared that he observed another issue that was going to be about $1700 but he could waive the cost of the cartridge if they did the work the next day... we passed on that work, which happened to ONLY need a $10 washer replaced (Which we had done by another plumber). To my surprise we received the max cost for the cartridge replacement yadda yadda + a fuel surcharge (while I understand fuel surcharges can be levied by some companies it was not discussed, I was already unhappy about being charged the "unlikely" amount). When I challenged the plumber about the fuel surcharge he let me know he was commissioned and he wasn't going to make as much.. I guess that's how they hook you with a "free quote", give you a range when quoting the work and then hit you with the maximum cost... a side note the other plumber we had out (not on commission) to look at the "$1700" job said that the cartridge was installed wrong and had to fix the work Mr. Rooter did...