I had Cool Times Heating and Cooling install a new furnace and HVAC, Aeroseal ducts, and install a humidifier in the Fall of 2018. Calvin and his employees worked long hours to make sure everything was done correctly, and I have been pleased with the level of comfort in my home over the winter. They should be back to tune the AC soon before I run it for the season, and I will post an update on how things go over the summer (thats why only 4 stars for now). Calvin and his workers were very friendly and we felt comfortable having them around us. I contacted two other companies and had them both visit before I decided to choose Cool Times. It was easy to talk to Calvin and build a rapport with him, and I never felt like another customer to him. Calvin also came highly recommended from one of my contacts in industry, and a maintenance worker who remembers Calvin from a training class that Calvin taught. Calvin is knowledgeable - you will very quickly see this if you ask him a question - and really knows what he is doing.The work took longer than I expected - but I guess thats the nature of this type of work. My family and I had to coordinate availability for three consecutive days to allow Cool Times to do the work. Thats a lot of time to make yourself available. I wish the work could have been done in a more modular fashion that was more evenly dispersed. Second, from what I can tell, the company is a smaller company and manages to stay the right amount of busy for their size. However, sometimes this is frustrating as it can be difficult to get ahold of Calvin for a quick response. Everything worked out, so my lesson was that you just have to be a bit patient - again probably somewhat related to the nature of this type of work of dealing with emergencies of people not having heat and new install jobs like mine.Overall, I can honestly say that I would not hesitate to hire Cool Times for work in the future.Update September 2020: Still really pleased with the work. After a couple of seasons of using the new setup I am really pleased. I am upgrading to 5 stars. I highly recommend Calvin and his team.