extremeairsystems.com 5 johnny aftoki @2011-09-25 TOP NOTCH SERVICE! My furnace quit after the first cool night of the year. I called Extreme Air Systems and was greeted by a professional person who took my information and told me that a serviceperson would come and diagnoise my problem. My serviceman, Anthony K., arrived promply, and very quickly & accurately diagnoised what was wrong and made the necessary repairs. Thank you to the entire Extreme Air System crew for taking the fear out of furnace repair!