The 50% rule.
If repair cost is more than 50% of replacement cost, replacement usually wins on a 5-year horizon. Below 50%, repair is typically the smarter spend.
Five quick questions, one data-driven answer. Then a real Volpe NCI Performance Audit if the data says it's time.
We'll weigh your system's age, recent repair history, energy bills, refrigerant type, and comfort symptoms — then recommend a path. Real numbers come from a Volpe NCI Performance Audit.
If you're not sure, your install year is on the equipment data plate.
Rules of thumb
The decision tool already weights these; they're here so you can sanity-check the recommendation against the heuristics HVAC professionals actually use.
If repair cost is more than 50% of replacement cost, replacement usually wins on a 5-year horizon. Below 50%, repair is typically the smarter spend.
Most central AC systems serve 12 to 17 years in Northern New Jersey. Past 15 is repair-on-failure territory unless a major part is under warranty.
R-22 was phased out under the EPA Clean Air Act. R-410A is the current standard. R-454B and R-32 are the AIM Act transition refrigerants. Phased-out refrigerant pushes the replace lever hard.
Two unrelated failures in two years is a measurable signal of cascading degradation. A Volpe NCI Performance Audit will tell you whether it's the compressor, refrigerant charge, airflow, or controls.
Common questions
Book a free Volpe NCI Performance Audit. We'll measure your system, write you a System Operation Report, and tell you the honest answer.
Static pressure and airflow are tested and reviewed on every audit. Testing may be limited depending on the size and accessibility of your equipment.