D E Air Conditioning & Heating - Cupertino's Experienced HVAC Services

This is a common issue in our area, often caused by a failing capacitor, a worn-out motor, or debris buildup in the unit. Our technicians will perform a thorough diagnostic to pinpoint the exact cause—whether electrical or mechanical—and provide a clear repair plan to restore quiet, consistent airflow throughout your home.

Integrating your HVAC with solar requires careful system sizing and compatible, high-efficiency equipment. We assess your current solar output and home's needs to recommend and install HVAC systems designed for optimal performance with renewable energy. This can include variable-speed heat pumps and smart thermostats to shift usage to peak solar production times, maximizing your savings.

Given our local issues, biannual maintenance is key. Before summer, we focus on the air handler, cleaning coils and checking fan motors and capacitors to prevent failures. Before winter, we ensure your heating system is efficient and ready. This proactive care helps catch small problems early, preventing the major repairs we frequently see with neglected systems.