Is it worth repairing a 15 year old AC unit?

Usually not in El Paso. At fifteen years a system here has accumulated far more run hours than the same unit would elsewhere, the remaining life is short, and a large repair spent now does not reduce the replacement cost later.

What is the rule for repair versus replace?

Compare what the repair costs per remaining year against what a new system costs per year across its life. If the repair is close to or above the new system figure, replacing is the better buy even though the sticker price is much higher.

My system uses R-22. Does that change things?

Substantially. R-22 has been out of production since 2020 and is only available as reclaimed stock at prices that make any recharge painful. Any repair opening the refrigerant circuit on an R-22 system is money into equipment that is already at least fifteen years old.

Repair or replace your AC in El Paso?

If you are holding a repair quote, this is the only question that matters. Put the number in and the calculator shows the arithmetic rather than just handing you a verdict.

Should you repair or replace?

Home size

sq ft

Year the system was installedNot sure? The year the house was built is usually close, and for an original system it is the same answer.

At 15 years, replacement is usually the better spend.

Your system is about 15 years old. In El Paso a system runs far more hours per year than the national average, so equipment here reaches the end of its usable life earlier than national guidance suggests.
Past about 10 years, a ac compressor replacement rarely pays for itself. The rest of the system is the same age and the next failure is not far behind.

A full replacement in El Paso would run about $7,680 to $12,000.

This is an estimate, not a quote. Correct sizing comes from a Manual J load calculation that accounts for your insulation, windows and orientation. Ask any contractor for theirs in writing.

How the comparison works

A repair buys you the remaining life of the system, not a fresh start. So the fair comparison is cost per remaining year against cost per year of a new system across its full life. A $2,400 compressor on a system with three years left is $800 a year. A new system at $11,000 over fifteen years is about $730 a year, with a warranty and lower running costs attached. That is why large repairs on old systems lose even though the sticker price looks so much smaller.

Why the math tips earlier in El Paso

Cooling season here runs most of the year. Equipment accumulates compressor hours at a pace that national lifespan figures were never built around, so a system reaching its mid teens in El Paso is closer to the end of its usable life than the same system would be in a milder climate. National advice about repairing at fifteen years is written for a different duty cycle than yours.

Common questions

Is it worth repairing a 15 year old AC unit?: Usually not in El Paso. At fifteen years a system here has accumulated far more run hours than the same unit would elsewhere, the remaining life is short, and a large repair spent now does not reduce the replacement cost later.
What is the rule for repair versus replace?: Compare what the repair costs per remaining year against what a new system costs per year across its life. If the repair is close to or above the new system figure, replacing is the better buy even though the sticker price is much higher.
My system uses R-22. Does that change things?: Substantially. R-22 has been out of production since 2020 and is only available as reclaimed stock at prices that make any recharge painful. Any repair opening the refrigerant circuit on an R-22 system is money into equipment that is already at least fifteen years old.