Key takeaways
- Repairing your AC usually makes sense when the system is under about 10 years old, the repair is a small share of the cost of a new system, and it hasn't needed major repairs lately.
- The "$5,000 rule": multiply the unit's age by the repair cost. Under $5,000, repair is usually the smart move. Over $5,000, replacement deserves a serious look.
- In Central Texas heat, most central air conditioners last about 10 to 15 years.
- Systems that use R-22 refrigerant (common in units installed before 2010) are expensive to recharge because new R-22 production ended in 2020. A major leak in an R-22 system is often a good reason to replace.
- Not sure? Get a second opinion. Austin HVAC Pros offers a free 30-minute inspection with a written report in Austin, Round Rock, Cedar Park, and Georgetown.
Should I repair or replace my AC?
Repair your AC if it's reasonably young, the fix is modest, and it has been reliable. Consider replacing it if it's old, the repair is major, and breakdowns are starting to stack up. Most decisions come down to five things:
- Age. How many years does the system realistically have left?
- Repair cost. Is this a small part or a big-ticket component like the compressor or coil?
- Repair history. Is this the first problem in years, or the third this summer?
- Refrigerant and efficiency. Does it use old R-22? Is it costing you a fortune to run?
- Comfort. Is the house cool and dry, or are some rooms always hot and sticky?
No single factor decides it. A 14-year-old system with a $250 capacitor problem is a very different story from a 14-year-old system with a failed compressor. That's why we look at the whole picture.
What is the $5,000 rule for AC repair?
The $5,000 rule is a quick way to weigh a repair: multiply your system's age in years by the repair cost in dollars. If the result is under $5,000, repairing usually makes sense. If it's over $5,000, replacement is worth considering.
Here's how that plays out with some example numbers. These are illustrations only, not our prices; every home and every repair is different.
| System age | Repair cost | Age × cost | What it suggests |
|---|---|---|---|
| 6 years | $350 | $2,100 | Repair |
| 11 years | $400 | $4,400 | Repair, but start planning |
| 13 years | $900 | $11,700 | Consider replacing |
| 16 years | $1,800 | $28,800 | Replacement likely makes sense |
A few honest caveats. The rule was popularized when equipment cost less than it does today, so some contractors nudge the threshold higher. It also ignores things that matter, like whether a newer system is still under its parts warranty or whether you plan to sell the house next year. Treat $5,000 as a starting point for the conversation, not a verdict.
How long does an AC last in Austin?
Most central air conditioners in Central Texas last about 10 to 15 years. Some go longer with good care, and some quit sooner when they've been neglected or were poorly installed.
Austin is tough on cooling equipment. Our cooling season runs for much of the year, summer nights often stay warm, and a typical summer brings long stretches of triple-digit days. Many homes also have the indoor unit and ductwork in the attic, where summer temperatures can climb well past 130°F. All of that adds up to a lot of run time, and run time is what wears out motors, capacitors, and compressors.
Age alone isn't a reason to replace. A well-maintained 13-year-old system that cools the house and keeps bills steady may have plenty of life left. Age matters most when it's combined with a big repair bill or a string of breakdowns.
What does the R-22 phase-out mean for my AC?
If your AC uses R-22 refrigerant (often called Freon), recharging it is expensive, because new R-22 hasn't been produced or imported in the U.S. since January 1, 2020. What's left comes from recycled and reclaimed supplies, and that limited supply keeps prices high.
R-22 was phased out under federal rules because it damages the ozone layer. New air conditioners stopped being built with it around 2010, so if your system was installed before then, there's a good chance it uses R-22. You can check the nameplate (the label on the side of the outdoor unit), which lists the refrigerant type.
Owning an R-22 system doesn't mean you have to replace it. It still works fine as long as it doesn't leak. But if an R-22 system has a significant refrigerant leak, or needs a new compressor or coil, replacement is often the better use of your money.
One more heads-up: the industry is going through another refrigerant change. New systems now use newer, lower-impact refrigerants such as R-454B or R-32. If you have a newer system that uses R-410A, don't panic. It can still be serviced and repaired.
Answer 5 quick questions in our free Repair-or-Replace Checker and see what we'd do. Spoiler: it's not always "buy a new one."
When is repairing your AC clearly the smarter move?
Repair is clearly the smarter move when the system is fairly young, the problem is a common part, and the AC has otherwise been reliable. Repair usually wins when:
- The system is under about 10 years old and has been maintained.
- The failed part is a common one: a capacitor, contactor, fan motor, thermostat, or clogged condensate drain. These are routine fixes, not signs the whole system is dying.
- It's the first real problem in years. One breakdown after a decade of good service isn't a pattern.
- The parts are still under warranty. Many manufacturers offer multi-year parts warranties on registered equipment. Check your paperwork before you replace anything.
- Your bills and comfort are normal. If the house was cool and the bills were steady before this breakdown, the system is probably still doing its job.
If a $200 repair buys you five more good years, that's what we'll tell you. We only recommend what we'd do in our own homes.
When does replacing your AC make more sense?
Replacing your AC makes more sense when the system is near the end of its life and the repairs are getting bigger or more frequent. Signs that it may be time:
- The unit is 15 or more years old and needs a major repair, like a compressor or evaporator coil.
- It uses R-22 and has a refrigerant leak.
- You've had two or more significant repairs in the last two years.
- Your electric bills keep climbing even though your habits haven't changed.
- The house won't stay comfortable: hot rooms, sticky humidity, or a system that runs nonstop and never catches up.
Efficiency is part of the math, too. Many systems installed in the early 2000s were rated around 10 SEER. Today's minimum for new central AC in the South is 15 SEER (14.3 under the newer SEER2 rating). Going from 10 to 15 SEER can cut the energy used for cooling by about a third on paper. Real-world savings vary with your home, ductwork, and habits.
A new system is a big purchase, and the price varies widely with the size of your home, the equipment, and how much ductwork or electrical work is needed. If it really is time, we offer 0% APR financing on approved credit.
How do you avoid getting upsold on a new AC?
The best way to avoid being upsold is to ask for specifics in writing and get a second opinion before you commit to a replacement. Questions worth asking any heating, ventilation, and air conditioning (HVAC) company:
- What exactly failed, and why? "It's old" isn't a diagnosis.
- What does the repair cost, and what does replacement cost? You deserve both numbers, side by side.
- Can I see it in writing? A written report lets you compare quotes fairly.
- Why are we adding refrigerant again? Refrigerant doesn't get "used up." If a system keeps needing a top-off, there's a leak that should be found and fixed.
That's exactly how our free 30-minute inspection works. We check the system's health, refrigerant levels, and airflow, then hand you a written report with an honest repair or replacement quote. Our techs aren't paid to upsell, and there's no obligation. You can also run the numbers yourself with our Repair-or-Replace Checker.
Frequently asked questions
Is it worth fixing a 15-year-old AC?
Sometimes. A small repair, like a capacitor or contactor, can be well worth it on a 15-year-old system that's otherwise running well. For a major repair like a compressor, the $5,000 rule (age × repair cost) usually points toward replacement.
How do I know if my AC uses R-22?
Check the nameplate on the side of your outdoor unit; it lists the refrigerant type. If your system was installed before 2010, there's a good chance it uses R-22. A technician can confirm it during a service visit or inspection.
Will a new AC lower my electric bill?
Often, yes, especially if you're replacing an older, low-efficiency system. Going from about 10 SEER to 15 SEER can cut cooling energy by roughly a third on paper, but actual savings vary with your home, ductwork, and thermostat habits.
Can I get a free second opinion on AC replacement in Austin?
Yes. Austin HVAC Pros offers a free 30-minute system inspection for homes in Austin, Round Rock, Cedar Park, and Georgetown. You get a written report and an honest repair or replacement quote, with no strings attached.