Mike Mavromatis · Owner & Founder
Last updated
Written from Air It Up's first-hand field experience across Greater New Orleans since 2000 and reviewed for accuracy by owner Mike Mavromatis. Equipment specifics (warranty terms, efficiency ratings) reflect manufacturer-published information at the time of writing — always confirm current terms for your exact model.
The decision factors
Four things drive the call: age, the repair cost versus a new system, current efficiency (SEER2), and refrigerant type. A common guide is the 50% rule — if a repair approaches half the cost of replacement on an aging unit, replacement usually wins.
When to lean repair vs. replace
- Repair: a young system with a minor, affordable fix.
- Replace: an old unit needing a compressor, using phased-out refrigerant, or failing again and again.
Failure modes
Pouring repair money into a dying unit, or replacing a system that just needed a charge correction or capacitor, are both costly mistakes. An honest assessment — and a payback analysis on efficiency gains — avoids them.
Proof and your next step
We give straight repair-versus-replace advice rather than defaulting to a sale. Use the repair-or-replace guide to think it through.
Frequently Asked Questions
- What is the 50% rule for HVAC?
- If the cost to repair an aging system approaches 50% of the cost to replace it, replacement is usually the better value. It is a guide, not a law — age, refrigerant, and efficiency matter too.
- Is it worth repairing a 15-year-old AC?
- Often not, especially for a major repair. At 15 years a unit is near the end of its life and far less efficient; we will tell you honestly when a repair is just delaying the inevitable.
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