I asked the workers to let us know if they saw anything unusual to do with our heat & air, since they were going to be working under the house. We were having problems and feared our unit was going out. Not only did they find the problem, but they reconnected duct work that had come loose. This solved our problems and saved us a visit from an HVAC repair man. We appreciate their willingness to go “above and beyond” to serve their customer. I hesitated to ask but I’m glad I did!