We bought this house two years back and knew back then that we will have to replace the two York furnace/AC eventually because they are probably around 15 years old. The AC on the second floor have been running nonstop for the past 3 days because it is not blowing cold air. Right now it is miserable 84 degree even though I can hear the AC running.

After browsing this forum and reading everything, one thing that is mentioned over and over again is GET A GOOD INSTALLER! Can anyone help with a recommendation (or two or three)in the Northern Virginia - Sterling area?