The answer to 'how long will AC repair last' is that the longevity of an AC repair can vary widely, but most repairs will last 1-5 years on average. The lifespan of an AC repair depends on factors like the type of repair, the age and condition of the unit, how well it's maintained, and how heavily it's used. Simple repairs like replacing a capacitor or cleaning the coils may last 3-5 years, while more complex issues like compressor failures could require replacement of the entire unit within 1-2 years.
It's important to keep in mind that AC repairs are not a permanent solution, and homeowners should expect to make additional repairs or eventually replace the unit as it ages. Regular maintenance and timely repairs can help maximize the lifespan of an AC system, but there's no guarantee a repair will last indefinitely. If a repair doesn't seem to be holding up, it's best to consult an HVAC professional to diagnose the underlying issue.