I have been using Swiss Heating and Air for the past six years for my two houses. They recently installed new air conditioning and a new furnace in the house I live in now. The technicians are skilled and friendly. They are very accommodating with my schedule. I once called them the day before they were scheduled to do service for my new house and asked if they could service my other house at the same time. They worked everything out perfectly. They are very timely and provide very good work. I would say: USE THEM!