Incompetent.
Would give zero score
3 installation dates
Not installed. Needed parts 2 x then 3rd install they figure out they can’t cut new hole in foundation which is what they knew was to be done. Yah the foundation never changed from the 2nd visit
So let’s proceed with part and new foundation hole. Told to call the concrete company myself. Did so And left many messages about dates to-move forward. No response. Stop in store. Told they don’t want to do work because I asked about grandfathering old venting. Guess what it’s called a question and why would I proceed with getting the part and contacting a concrete cutting company if I didn’t understand it can’t be done.   Inquiring about renovation grandfathering of pre existing is actually a common question to ask a contractor.

Also said they don’t want to install because I stated willing to pay labour  but I want parts at your cost because of all the inconvenience, I was told that’s how we make money so will just double labour.
Yah I don’t think so.  You know when you make 3 visits and still not prepared to install this is your business error not mine. But you seem to think I should just be happy to pay your inflated parts prices and my time has no value.
FYI to the company  feel free to book a time to pick your part up. I will not be dropping it off as I will give you no more of our time.

Warning. Don’t ask any questions to this company as they don’t actually understand what a question is and your time has no value to them
Go elsewhere for a fireplace and install