We had an issue with our on-demand hot water heater that Aaron installed. He offered to come out that very night to fix it. He was quick to take ownership over the issue that was causing the problem and made the repair without question. He even offered to help us with a warranty issue with our thermostat even though he was not the one who installed it. I found my dealing with Calgary Home Comfort to be fast and very friendly. I have been very impressed with their customer service and will continue to use them in the future. Aaron is guy who stands by his word.