A heat pump’s lifespan is approximately 10 to 15 years or more. With proper maintenance, their life can be extended to up to much more years. They do require regular maintenance: once a year, you should check certain details of the system yourself, and you shall have the professional installer needs to have the system a look every year once the warranty period is over. After the check-up, the installer should leave written details of the system’s condition and any indications for possible future issues.