Systematic maintenance scheduling prevents premature HVAC replacement within 15 years
https://precisionhvacrepaircenter.timeforchangecounselling.com/why-spending-4-000-to-12-000-on-hvac-protection-plans-saves-money-long-term
Most HVAC systems last 15 to 20 years, but the true replacement timeline depends on your service-cadence workflow and preventive care protocol