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

https://precisioneverydayhvac.tearosediner.net/correct-ac-sizing-determines-whether-your-20-year-old-unit-deserves-repair-investment

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