All I can say is I don't understand how they have so many positive reviews! We wanted to replace our furnace, so this is one of the companies we had come out and give us a quote. Unfortunately, we ended up going with them and we have had nothing but trouble. We were quoted on the boiler and talked into switching our traditional water tank to a combi unit. We agreed and were told the unit would vent directly outside vs using the old chimney. The day we scheduled them to come, they told us they could not install a combi unit, but rather they would install a tankless water heater and a boiler. When they installed the tankless unit it was not installed properly, as the intake was suppose to be vented to the outside(to bring outside air in vs using the basement air). We were not told that there needed to be a water line that takes excess water away from the tankless unit so instead of routing this to a drain the plastic tubing was left running across our floor in front of the washing machine to the floor drain. Additionally, instead of venting the boiler directly out as they said they were going to do, they vented it through the old chimney. We first had trouble with the boiler that was leaking and they refused to change it out, it has rust on it from the leak and they finally did agree to extend the warranty from the one year we originally had. Now we have had hot water on and off for almost a week. They came to change the fresh air vent to the outside as it was originally installed incorrectly and have had to come back three times as it now is getting an error code due to CO2(they also cancelled the original appointment 3 times and when they did finally come back the three times they were way past the time they said they would arrive) as it was installed improperly. We called them again today with no response on when someone could come out asap to fix it. The customer service is terrible, they speak over you and make excuses for everything. We had to pay another company to come in and fix it and have had no trouble with. Needless to say today, less than a year after the boiler being installed, it is not working. We called to have a technician come(today is very cold)to look at it and no one can come until tomorrow evening(30 hours from now). So if you value customer service and an ethical company this is not it. Do yourself a big favour and find a more reputable company.