We would like to compliment Design Air for the professional and efficient installation of a new split heating and air system in out home, including a new automatic thermostat that switches between the 2 systems. They also replaced and repaired about 50' of attic/crawlspace ductwork, making sure that the air was not wasted in this unused space. From the initial visit to gain information for a proposal, obtaining city permits, installation, to arranging final city inspection, the staff was courteous, professional and showed up when they said they would (very important when having to take time off work!). Our entire installation took about 6 hours, which included all clean-up and old equipment removal. I cannot say enough about Design Air and highly recommend them for any service or heat/air equipment installation needs.