It's like the predatory scam calls. They're not getting people that are reasonably knowledgeable about anything HVAC or local business reputations.

On of my wife's clients is a retired widow. There was a Gillece truck in front of her house one day when she let the dog out which she mentioned, I had her call immediately and tell her to get a 2nd estimate, but it was too late. Fortunately it was just a hot water tank, but she could have gotten it done for half the price by anyone else. Her mentality was just "hot water is not hot", call whoever.