Dyess Heating & Air Conditing | Emergency HVAC Repair in Bluffton, SC

If your heat pump is blowing cool air when set to heat, or warm air when set to cool, it's often a sign the reversing valve is stuck. You might also hear a constant hissing noise. This is a common issue with our coastal systems. We can diagnose and repair the valve to restore proper heating and cooling function.

Leaky ducts force your HVAC system to work much harder, pushing conditioned air into your attic or crawlspace instead of your living rooms. This leads to uneven temperatures, reduced comfort, and significantly higher energy bills. We perform detailed duct inspections and use professional sealing methods to ensure all the air you pay for reaches your home.

Our humid, salty air can accelerate wear on components like the heat pump reversing valve and cause condensation issues that degrade ductwork. Regular professional maintenance from our team helps catch small problems early—like a sticking valve or a developing duct leak—preventing costly breakdowns and keeping your system running efficiently year-round.