Hi Tech PTAC NY. Our Multi-disciplined, multi-skilled and a tight-knit team provide many happy clients and the best engineering services maintenance for all models of commercial HVAC equipment in New York. Our HVAC Specialists can provide high-quality air conditioning repair services in New York and the surrounding areas. All of our air conditioning services are available in Five Boroughs, NYC, Queens, New York, Manhattan, Bronx, Staten Island, Long Island, Suffolk County, Nassau County.