They have always been professional and helpful. I became a loyal customer for life several years ago, after the owner took time out of Christmas shopping for his kids on Christmas Eve night to fix my furnace, which wasn’t working properly. He only charged for the piece he had to replace, not his labor. They don’t try to sell me things I don’t need. This time I told them we would be moving soon. They said I probably didn’t need the insulation on the air conditioner this year, but I chose it since we’re putting the house up for sale.