Furnace in my 3-unit rental property decided not to work on a very cold day! Called Benner & someone came out that afternoon--later than they said, but they were probably very busy. Repairman was there for about 1 1/2 hours & fixed the problem. Only complaint is that I wasn't called, as I had requested, to be told what the problem was & how much it might cost to fix it. Old parts were left for me to see. Would have been nice if they had tidied up & left the area as they found it. Otherwise, am pleased with the service.