The answer to 'how long does HVAC repair last' is that the longevity of HVAC repairs can vary significantly depending on the specific issue, the quality of the repair work, and the overall condition of the HVAC system. In general, well-executed HVAC repairs can last anywhere from a few months to several years before additional maintenance or repairs may be needed.
For minor issues like replacing a thermostat or cleaning the condenser coils, the repair may last 2-5 years before needing to be addressed again. More complex repairs like fixing a refrigerant leak or replacing a compressor can provide 5-10 years of reliable performance if the underlying system is in good shape. However, if an HVAC system is older or has other underlying problems, even a quality repair may only last 1-2 years before additional issues arise.