Hitech PTAC Specialist. provides HVAC services within New York City, Queens, Brooklyn, Bronx, Staten Island, Long Island, New Jersey, Connecticut, and Westchester. Due to our outstanding track record, we have become a trusted name for many in the New York area. Our certified technicians service all furnace and air conditioning make and models. When your air conditioner breaks down in New York, NY, don’t worry! Pick up the phone and call the AC service professionals at Hitech PTAC Specialist.