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Air Conditioning

Should I Repair or Replace My AC? Here’s the Honest Answer

Home | Blog | Published on June 9th, 2025

When your air conditioner starts acting up, whether it’s blowing warm air, making strange noises, or simply not keeping your home cool, it’s natural to wonder: Should I repair it, or is it time for a replacement? It’s a question we hear all the time, and the answer isn’t always black and white. 

But with the right information, you can make a confident, cost-effective decision that prioritizes your comfort and budget. At the heart of the issue is one important principle: not all air conditioning problems are created equal. Some are quick and inexpensive to fix. Others are signs that your system may be on its last leg.

Here’s a practical, honest framework to help you decide whether repairing or replacing your AC is the right move for your home.

1. How Old Is Your AC Unit?

The typical lifespan of a central air conditioner is 10 to 15 years. If your unit is under 10 years old and has been well maintained, repair is often the logical choice. However, if your AC is approaching or exceeding the 10-year mark, replacement might be more cost-effective, especially if it’s no longer running efficiently.

Tip: If your unit is older than 12 years and experiencing frequent problems, it may be costing you more to keep it alive than it’s worth.

2. What’s the Cost of the Repair?

Here’s an easy formula: If the repair cost exceeds 50% of the price of a new system, replacement is usually the better option. Let’s say your AC repair is estimated at $1,500, and a new system would cost $6,000. That repair is 25% of the cost of a new unit – probably worth fixing. 

But if the repair jumps up to $3,500? It’s time to seriously consider a replacement. Also, consider repair frequency. Are you calling for service every summer? Those repair bills add up, and they’re money that could go toward a newer, more reliable unit.

3. Are Your Energy Bills Rising?

An aging or underperforming air conditioner has to work harder to maintain a comfortable temperature, meaning it draws more electricity and drives up your monthly utility bill. If you’ve noticed a steady increase in energy costs, your AC may be losing efficiency.

New ENERGY STAR®-rated systems can lower your cooling bills by 20–40%, offering both comfort and long-term savings. Sometimes, the monthly energy savings from a high-efficiency unit can help offset the cost of installation over time.

4. Is Your Comfort Suffering?

Even if your system still technically “works,” it may no longer be keeping your home as comfortable as it once did. Hot and cold spots, weak airflow, and excessive humidity indoors are all signs that your air conditioner is struggling to meet your needs.

If you’ve already tried basic fixes like new filters or thermostat adjustments, these problems may indicate a system that’s undersized, aging, or failing. In these cases, a replacement isn’t just a luxury – it’s a necessity for maintaining a livable indoor environment.

5. Are You Planning to Stay in Your Home?

If you’re planning to stay in your home for several more years, investing in a new system can provide lasting peace of mind, energy savings, and improved comfort. On the other hand, if you’re planning to sell soon, a repair might be enough to get you through, though a new AC can increase your home’s market value and appeal to buyers.

Find professional HVAC services at Jack Lehr, the HVAC company your neighbors have trusted for years.

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