Replacing an HVAC system is a big expense, so it pays to know whether a repair will buy you good years or just delay the inevitable.
The age and cost test
If the system is more than about fifteen years old and a repair costs more than a third of a new unit, replacement usually wins. Older systems also use far more energy, so a new one starts paying you back immediately.
Signs a repair is enough
A newer system with a single failed part, good airflow, and reasonable energy bills is worth repairing. One breakdown does not mean the end.
Signs it is time
Frequent repairs, uneven temperatures, rising bills, or a system using older refrigerant are all signs the smart move is to replace rather than keep patching.
Keep it running longer
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Common questions
How long does an HVAC system last?
Around fifteen to twenty years with regular maintenance, less if it is neglected.
Does a new system really save energy?
Yes. Modern units are significantly more efficient, so a replacement often lowers monthly bills noticeably.
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