The answer to 'how long will system upgrade last' is that a properly installed and maintained HVAC system upgrade can last 15-20 years on average. The lifespan of an HVAC system upgrade depends on factors like the quality of the equipment, how often it is serviced, and the climate conditions in your area. With regular professional maintenance and proper usage, many HVAC upgrades can provide reliable heating and cooling for 15-20 years or more.
It's important to work with a qualified HVAC technician when upgrading your system to ensure it is sized correctly and installed properly for maximum efficiency and longevity. They can also provide guidance on the best equipment options for your home and budget.