The salesman was very helpful and knowledgeable. I waited one week for my installation and the came right out to install my furnace. The installers were very respectful and courteous. They explained the system and how it worked so that my husband and I would understand how to work it. The work area was cleaned up very good. I was talking to my neighbor who had service from Four Seasons and she recommended the company to me. I will refer Four Seasons to family and friends.