Hitech PTAC Installation NYC. We serve New York and we are specialists in the PTAC, HVAC Units Repair, Air Conditioners, PTAC Units Installation, Thru-the-wall AC, Accessories installation, Friedrich AC Repair, Frigidaire AC Sales, Winter Storage, Disposal of Old ACs, Climate Control and Indoor Air Quality, Emergency Repair, Preventive Maintenance in NYC We are proficient in PTAC services for a wide range of units, we also offers a variety of air conditioning and heating services in NYC.