AC and Heating Repair Services in Charlotte, NC and surrounding areas

Your vehicle’s air conditioning and heating systems are essential for maintaining comfort and safety on the road, no matter the season. At Mechanic On Duty in Rock Hill, SC, we specialize in diagnosing and repairing AC and heating issues for all makes and models. Whether you’re dealing with a faulty compressor, refrigerant leaks, or a malfunctioning heater core, our experienced technicians provide fast, reliable solutions to keep you comfortable year-round.

  • A close up of a car air vent with a red triangle on it.

Diagnosing AC and Heating Issues

A malfunctioning AC or heating system often starts with subtle signs that, if ignored, can lead to more severe issues. Common indicators of AC problems include weak airflow, warm air blowing from vents, or unusual noises when the system is running. For heating systems, symptoms like a lack of warm air, foggy windows that won’t defrost, or coolant leaks often point to underlying problems.


At Mechanic On Duty, we use advanced diagnostic tools to pinpoint the root cause of your system’s failure. By thoroughly inspecting components like compressors, evaporators, heater cores, and thermostats, we ensure accurate diagnoses and effective repairs.

Comprehensive AC Repairs

Your vehicle’s AC system is a complex network of components that require precision care. Our AC repair services include:

  • Compressor Repair and Replacement: Restores proper cooling function to your system.
  • Refrigerant Recharge: Ensures your system is adequately charged for optimal performance.
  • Leak Detection and Repair: Identifies and seals refrigerant leaks to maintain efficiency.
  • Evaporator and Condenser Service: Cleans or replaces these vital components for effective cooling.

We provide a comprehensive approach to restoring your AC system to full functionality, ensuring you stay cool during hot South Carolina summers.

Reliable Heating System Repairs

When temperatures drop, a working heating system is crucial for your comfort and safety. Our heating repair services address issues such as:

  • Faulty Heater Cores: Replace damaged cores to restore proper cabin heating.
  • Coolant System Repairs: Address leaks or blockages that prevent the heater from functioning.
  • Thermostat Replacement: Ensure accurate temperature regulation.
  • Blower Motor Repair: Fix problems with airflow to ensure consistent heating.

We ensure your vehicle’s heating system works efficiently, keeping you warm and your windows clear during cold weather.

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