I had four companies come to my house and provide me with estimates on installing a Central Air Conditioner. I went with Fagnan's because I liked the brand they offered (Carrier), the fact that they've been in business since 1971, the sales-person, Kyle Fagnan was part of the family and they offered a very competitive price on a very good unit.
Based on Kyle's estimation, the optimal A/C for our house was a 3.5tonne unit.
On the day of the install, Jack and Justin came on time, 9am, and completed the job by mid-afternoon. They were polite, friendly and clean. Also, neither one of them smoked which is a huge plus (I've picked up more cigarette butts from contractors than I care to remember).
Shortly after the unit was installed, I went on the Carrier website to register the unit. In doing so, I found out that the wrong unit had been installed - they installed a 3tonne unit instead of a 3.5 tonne unit.
Upon discovering this issue, I called Kyle to tell him what happened. He replied that he would look into the situation and he would call me back. 2 Hours later, Kyle phoned me back and admitted they put the wrong unit in and promptly asked me when they could come back to my house and swap the unit out. He did not ask me to "try out" the 3 tonne unit or give me any kind of run-around whatsoever. There was a problem and they made it right!
While Fagnan's did make an error, I'm extremely impressed with how they handled it and I will not go anywhere else for anything related to my HVAC needs.