preventative HVAC maintenance Long Island

When your heating or cooling fails unexpectedly, you need fast, reliable help. City Tech HVAC Services offers 24/7 emergency HVAC repair across Long Island. Our technicians are on call all hours, in any weather, and our fully stocked trucks mean we arrive with the parts and tools to fix your problem immediately—no return trips to the shop.

We handle all brands and types of systems: furnaces, heat pumps, boilers, PTAC units, and central AC. From a sudden breakdown in the middle of summer to a no-heat situation in winter, our team responds within an hour for urgent calls. We diagnose the issue on the spot, provide transparent pricing, and complete most repairs in a single visit. Trust our 30+ years of experience to restore comfort to your home or business quickly and professionally.

PTAC (Packaged Terminal Air Conditioner) units are common in Long Island hotels, apartments, and offices—and they require specialized care. City Tech HVAC Services is your local expert for PTAC repair, installation, and maintenance. We work with all major brands, including GE, Amana, and Carrier, ensuring your units run efficiently year-round.

Our services include thorough cleaning of coils and filters, motor and compressor repairs, thermostat replacement, and full unit installation. We understand the high demands placed on PTACs in commercial settings. That's why we offer preventative maintenance plans to extend the life of your units and reduce energy costs. Whether you manage a single room or a 200-unit building, our team keeps your PTAC systems in peak condition.

Ductless mini-split systems provide efficient heating and cooling, but they require regular cleaning to maintain performance. City Tech HVAC Services specializes in mini split cleaning and maintenance for Long Island homeowners and businesses. Our process includes deep cleaning of blower wheels, evaporator coils, drain pans, and filters—removing mold, dust, and debris that reduce efficiency and air quality.

We use industry-leading tools to access hard-to-reach components, ensuring your system operates at peak efficiency. Regular maintenance prevents costly breakdowns, lowers energy bills, and extends the lifespan of your unit. As a veteran-owned company with an A+ BBB rating, we pride ourselves on transparent pricing and meticulous work. Contact us today to schedule your mini split cleaning and breathe easier.