Extending Your AC Unit's Life Requires Preventive Maintenance Every Two Years
https://precision247yearround.capitaljays.com/posts/national-hvac-replacement-costs-average-5-000-to-15-000-per-system-lifespan
A central AC unit typically lasts 15 to 20 years, but preventive maintenance through regular tune-ups directly extends that lifespan by catching small issues before they cascade into reactive repair costs