If your air conditioner has been acting up—or your energy bill is suddenly sky-high—you might be wondering: Is it time to replace my AC?
This is one of the most common questions we get at Air Conductors, especially during the hot Central Texas summers. With temperatures regularly hitting triple digits, your AC system doesn’t just cool your home—it keeps your family safe and your living space livable. So when your system starts showing signs of wear, it’s important to know what to look for and when to take action.
In this guide, we’ll walk through 7 key signs it may be time to replace your AC, explain what they mean, and help you make the best decision for your comfort and your wallet.
First Things First: How Long Does an AC System Last?
Most air conditioning systems last between 15 to 20 years—with regular maintenance. If you’re in a mobile home, that number can skew a little lower due to space constraints, duct design, and the type of equipment used.
But even before your system hits that age range, issues can start to pop up. That’s why it’s smart to look at the bigger picture—performance, comfort, energy bills, and repair costs—before deciding whether to replace or repair.
Sign #1: Your AC Isn’t Cooling Like It Used To
If your home feels warm and muggy even when the thermostat is set to 72°F, your system could be losing its ability to remove heat and humidity efficiently. This could be caused by:
A failing compressor
Dirty or clogged coils
Low refrigerant levels
Duct leaks or insulation issues
For manufactured homes: Undersized or mismatched systems are a common issue. We often see units installed by factory builders that are technically “new” but not sized or designed for Texas heat.
💡 Pro Tip: If you notice your system running non-stop but not cooling, it’s worth scheduling an inspection before you see that power bill.
Sign #2: Your Energy Bills Are Climbing
Rising utility costs can be a subtle sign that your AC is working too hard. This can happen even if the air feels fine in your home. Factors may include:
Reduced system efficiency
Aging components
Airflow restrictions
Leaky ductwork
How much can you save with a new unit?
A properly sized, high-efficiency system (especially one with a SEER2 rating of 15+) could reduce your cooling costs by up to 40%. That’s hundreds of dollars a year.
Sign #3: You’re Constantly Paying for Repairs
Needing occasional maintenance is normal. But if you’ve had to fix your system two or three times in the past 12–18 months—or you’re facing a major repair like a new compressor—you may be better off investing in a new system.
Here’s a quick way to evaluate:
| Repair Cost | System Age | Recommended Action |
|---|---|---|
| Less than $300 | Under 10 years | Likely worth fixing |
| Over $500 | Over 10 years | Get a quote on replacement |
| Over $2,000 | Any age | Consider replacing unless it’s brand-new |
Sign #4: It’s Making Strange Noises
Some noise is normal—especially when the system starts or shuts off. But grinding, clanking, hissing, or screeching noises almost always mean trouble.
Common culprits include:
Worn-out blower motors
Loose internal parts
Refrigerant leaks
Failing bearings or belts
Ignoring these noises can lead to bigger issues (and more expensive repairs), especially during a summer heatwave when HVAC techs are booked solid for days.
🔧 If you’re in Bastrop or a surrounding area, give us a call—we can usually get a tech out fast, even in peak season.
Sign #5: Your System is 15+ Years Old
Even if your AC system seems to be working “fine,” if it’s over a decade old, it’s time to start preparing for a replacement. Why?
Older systems have lower SEER ratings, meaning higher energy use.
They may use R-410A refrigerant, which is being phased out starting in 2025.
Parts can be harder to find or more expensive.
They’re more likely to break down under stress (like a August heatwave).
Sign #6: Poor Airflow or Uneven Cooling
If some rooms are hot and stuffy while others feel like a freezer, your system might be:
Struggling to distribute air evenly
Undersized or oversized for your home
Dealing with ductwork restrictions or damage
In manufactured and mobile homes, this problem can be even more noticeable due to:
Small or flat ductwork
Improper airflow balancing
Air handlers that aren’t strong enough
We can often fix airflow issues, but if your system is older, uneven cooling can be a sign it’s not circulating air like it used to—and a new system might be your best bet.
Sign #7: You’re Ready for an Upgrade in Comfort & Efficiency
Even if your AC isn’t broken, it may not be meeting your comfort needs. Upgrading now could mean:
Better humidity control
Smart thermostat compatibility
Lower monthly bills
Quieter operation
Cleaner air (especially with add-ons like air purifiers or UV lights)
And if you’re thinking about selling your home in the next few years, a new HVAC system is a big plus for buyers—especially here in Texas.
Special Considerations for Mobile Homes
If you live in a mobile or manufactured home, your HVAC system needs are unique:
You can’t just install a regular residential AC—you need a model rated for mobile homes.
Airflow, duct design, and space limitations all play a role.
We often see factory systems that aren’t built for long-term Texas heat.
If your mobile home AC is more than 10-15 years old or has constant issues, let’s talk about options. We specialize in mobile home AC replacements and work closely with local dealerships and homeowners.
📞 What’s Next? Get An Expert Evaluations with Honest Answers
We know replacing your AC is a big decision—and not one you should feel pressured into. At Air Conductors, we’re committed to giving you the real story about your system’s condition, your options, and what makes the most sense for your budget and comfort.
Here’s what you’ll get with a free replacement estimate:
A full system inspection
Recommendations tailored to your home (or mobile home)
A quote for both repair and replacement options
Answers to your questions about A2L refrigerants, warranties, financing, and efficiency