I would recommend Bell Cow HVAC to anyone needing good quality service at an affordable price. I have a busted backflow device that had frozen over and leaking. Bell Cow came out and assessed the situation, explained it to me and provided an estimate same day. Two days later, my backflow device was replaced by a competent professional who explained the operation and maintenance. He also took care of the certification with the water company. It was a breath of fresh air to a company so easy to work.