When we decided to build an in-law suite onto our home to take care of my elderly parents, we realized that we also needed to upgrade our current air conditioning system. I got four estimates for the original house and the addition. The other contractors simply quoted prices for larger units. Jonathan was the only one who sat down with us and discussed the problems with our current system and our options for the addition. He created three separately controlled zones which was important because my parents preferred their area much warmer than our area. He also recommended foam insulation for the entire attic space. We added 800 square feet and our electric bill never went up! He also found a contractor to lower our vaulted ceiling by two feet to allow for larger duct work. Also, when I made a poor choice for the location of the outside unit, he moved the unit without complaint. We have only had one service call since completion and it was handled quickly and satisfactorily.