Licensed HVAC Repair in Berkeley, IL 60163 - Hennessey Heating & Cooling

In Berkeley's cold winters, frozen HVAC components are often caused by restricted airflow or low refrigerant levels. A dirty filter, blocked vents, or a failing blower motor can reduce airflow, causing the coil to drop below freezing and ice over. Our technicians diagnose the root cause, safely thaw the system, and perform the necessary repair—like sealing a refrigerant leak or cleaning your ducts—to prevent it from happening again.

For Berkeley homes, we recommend a multi-step approach. Start with a professional duct cleaning to remove accumulated dust and allergens. Then, consider upgrading your filter to a high-efficiency MERV-rated option or installing a whole-home air purifier or UV light system. These solutions actively neutralize pollutants, mold spores, and bacteria, which is especially helpful during high-pollen seasons or for households with allergy sufferers.

Absolutely. Our Berkeley-focused maintenance plan is designed to prevent the issues you face. Twice-yearly tune-ups include checking refrigerant levels, cleaning coils, inspecting electrical components, and testing system airflow. This proactive care helps avoid winter freezes, ensures efficient operation to manage humidity (which affects air quality), and catches small problems before they become expensive, disruptive repairs.