Best HVAC Repair in San Jose, CA 95124 - AO Heating and Air Conditioning

Uneven cooling, especially in larger homes, is a common issue in our area, often caused by an improperly sized system or imbalanced ductwork. During an HVAC installation or replacement, we perform detailed load calculations to ensure your new system is the perfect size. For existing systems, our repair and maintenance services can include adding zoning controls or rebalancing your ductwork to direct air more effectively, eliminating hot and cold spots throughout your home.

Key signs include reduced cooling power, ice forming on the refrigerant lines or evaporator coil, and a hissing sound. In San Jose's heat, a refrigerant leak forces your AC to work much harder, leading to higher energy bills and potential compressor failure—a costly repair. Our HVAC system repair service includes precise leak detection using electronic detectors or ultraviolet dye, followed by a permanent seal and a proper refrigerant recharge to restore efficiency and protect your investment.

Our preventative maintenance is tailored to local needs. We thoroughly clean coils and check refrigerant levels to prevent strain that can lead to leaks. We also inspect and adjust blower motors and ductwork to maintain proper airflow, which is crucial for preventing uneven cooling. This proactive care keeps your system running smoothly, improves indoor air quality, and helps you avoid unexpected breakdowns during our peak cooling season.