Aging HVAC equipment drives repair costs above $1,500 during final years

https://precision-anytime-hvac.cavandoragh.org/running-an-hvac-system-past-30-years-multiplies-failure-risk-and-replacement-cost-exposure

A typical HVAC service call in Sacramento ranges from $75 to $150 for diagnostics, but the real cost picture depends heavily on your equipment's age and remaining service life