Rooftop Units (RTU) Repair and Installation

Rooftop Units (RTU) Repair and Installation

Rooftop units are the workhorses of commercial HVAC in New York City. From office buildings and retail spaces to restaurants and warehouses, RTUs provide reliable heating and cooling from a single unit mounted on the roof. Karl's HVAC technicians are certified and experienced with all major RTU brands including Carrier, Trane, York, Lennox, and Goodman.

RTU Repair Services

When your rooftop unit breaks down, your entire building is affected. Karl's provides 24/7 emergency RTU repair so your business doesn't have to shut down. Common RTU repairs we handle include:

• Compressor failures and replacements
• Refrigerant leak detection and recharging
• Blower motor and fan belt replacements
• Thermostat and control board issues
• Economizer repair and calibration
• Heat exchanger inspection and repair

Preventive Maintenance

We recommend maintaining rooftop units at least twice annually — once before cooling season and once before heating season. Our maintenance service includes:

• Clean and replace air filters
• Inspect and replace drive belts
• Lubricate all moving parts
• Clean condenser and evaporator coils
• Check refrigerant levels and test for leaks
• Inspect electrical connections and controls
• Test safety switches and sensors

Benefits of RTU Systems

• Cost effective — RTUs are designed for high energy efficiency, reducing utility costs for commercial properties
• Space saving — all components are housed on the roof, preserving valuable indoor floor space
• Easy maintenance — all service takes place on the roof with minimal disruption to building occupants
• Scalable — multiple units can serve different zones of a large building independently

RTU Installation & Replacement

If your existing RTU is over 15 years old or requires frequent repairs, it may be time for a replacement. Modern high-efficiency units can reduce energy costs by 30-50% compared to older models. Karl's handles the entire installation process including crane coordination, ductwork connections, and city permits.