Duke's Heating and Air Conditioning | HVAC Services in Raleigh, NC 27610

Common signs include your system blowing cool air when set to heat, warm air when set to cool, or getting stuck in one mode entirely. You might also hear a noticeable hissing noise. These issues are common with Raleigh's heavy heat pump usage. Duke's technicians can diagnose and repair or replace the valve to restore proper heating and cooling function.

Refrigerant leaks cause your system to work harder, leading to higher energy bills, reduced cooling power on hot Raleigh days, and potential compressor failure—a very costly repair. More importantly, it's illegal to simply 'top off' refrigerant. Duke's follows EPA protocols to locate the leak, repair it, and safely recharge the system to the manufacturer's exact specifications.

Our local climate puts extra strain on HVAC systems. Our maintenance service includes checking refrigerant levels and pressures to catch leaks early, inspecting electrical components and the reversing valve for wear, and cleaning coils to maintain efficiency. This proactive care from Duke's helps prevent the most frequent breakdowns, extends your system's life, and keeps your energy costs in check.