My husband and I decided to update our heating/cooling system since it was original to our 1970's home. We contacted 3 separate contractors and based on time/cost/ and professionalism, we decided to go with Qualtech. We were given a time frame and on the start day, right at 8:00 a.m., they were at the door. Work began immediately and the entire crew worked endlessly and professionally. We were given a 3 day time to complete and at the end of the second day, work was completed. Daniel showed me the "ins and outs" of the furnace and throughly showed me how to set the new thermostate. We were very happy with the work that was done by Qualtech.