When to Repair vs. Replace Your AC: A Homeowner’s Guide
Know When to Fix It or Upgrade to a New Unit

Your air conditioner plays a big role in keeping your home comfortable, especially during the hot summer months. But when it starts acting up, you might wonder whether to repair it or replace it entirely. This guide walks you through what to consider, like the unit’s age, efficiency, and the cost of repairs, so you can make the best decision for your home.
Signs You Should Repair Your AC
1. The Repair Cost Is Minimal
- If the issue is something simple like a clogged filter or thermostat problem, a quick HVAC repair is the best solution.
- Routine HVAC maintenance can prevent minor issues from becoming major problems.
2. Your AC Is Less Than 10 Years Old
- Most modern air conditioners last 10-15 years with proper care.
- If your unit is still relatively young, repairing it can extend its lifespan significantly.
3. Your Energy Bills Haven’t Increased Dramatically
- If your AC is still running efficiently but has a minor issue, repair is the cost-effective choice.
- A tune-up or refrigerant recharge can often restore efficiency.
4. The Issue Is Covered by Warranty
- If your unit is still under warranty, parts and labor costs may be covered.
- Check with an HVAC professional to see if your AC qualifies for a warranty repair.
Signs It’s Time to Replace Your AC
1. Your AC Is Over 10-15 Years Old
- Older systems are less efficient and more prone to breakdowns.
- A new HVAC installation can provide better cooling and energy savings.
2. Repair Costs Are Adding Up
- If repairs cost more than 50% of a new unit, replacement is the smarter investment.
- A new system can eliminate constant breakdowns and unexpected expenses.
3. Your Energy Bills Are Rising
- An aging AC system works harder, increasing your cooling costs.
- Upgrading to an energy-efficient HVAC system can lower your bills.
4. Uneven Cooling & Frequent Breakdowns
- If some rooms are too hot while others are too cold, your AC may be failing.
- Frequent breakdowns indicate your system is nearing the end of its life.
5. You’re Planning to Sell Your Home
- A new HVAC system can increase property value and attract buyers.
- Modern systems offer better comfort and reliability, making them a great selling point.
Get Professional HVAC Help Today!
Still unsure whether to repair or replace your AC? The experts at ARCO Heating & Cooling help homeowners make the right decision based on their needs and budget.
Call ARCO Heating & Cooling today at (636) 389-6471 to schedule an inspection!






