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 crucial role in keeping your home comfortable, especially during the hot summer months. But when it starts acting up, you might wonder: Should I repair my AC or replace it entirely? The answer depends on several factors, including the unit’s age, efficiency, and the cost of repairs.


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 can help you make the right decision based on your needs and budget.


Call  ARCO Heating & Cooling today at  (636) 389-6471 to schedule an inspection!


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By ARCO HEATING AND COOLING • April 25, 2025
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By ARCO HEATING AND COOLING • April 25, 2025
Find the Perfect HVAC Fit for Your Home's Comfort and Efficiency Selecting the right HVAC system isn’t just about brand or features—it’s about choosing a unit that fits your home’s size and layout. An improperly sized system can lead to high energy bills, uneven temperatures, and unnecessary wear and tear. At Arco Heating & Cooling , we help you choose the perfect system for optimal performance and year-round comfort. Why HVAC System Size Matters An HVAC system that’s too large or too small can cause a variety of issues: Oversized systems short-cycle, leading to inefficient operation and uneven temperature control. Undersized systems run constantly, struggle to maintain comfort, and lead to higher energy usage and faster wear. Correct sizing ensures maximum efficiency, lower utility bills, and a longer-lasting system. Key Factors in HVAC Sizing 1. Square Footage of Your Home The size of your home is the most critical factor. HVAC systems are rated in BTUs (British Thermal Units), and each square foot of living space typically requires a certain number of BTUs. 2. Climate Zone Homes in colder or hotter climates require more powerful systems to maintain comfort. Missouri’s four-season weather means your HVAC system needs to handle both heating and cooling efficiently. 3. Home Layout and Insulation High ceilings, window placement, and insulation quality can impact your home’s heating and cooling needs. A well-insulated home may require a smaller unit than a drafty one. 4. Number of Occupants and Appliances More people and heat-generating appliances (like ovens) can affect your home's internal temperature and should be factored into system sizing. Let Arco Heating & Cooling Help Choosing the right HVAC system doesn't have to be a guessing game. Arco Heating & Cooling offers expert consultation services to: Evaluate your home’s size, layout, and needs. Recommend HVAC systems based on BTU requirements and efficiency ratings. Provide professional installation and ongoing maintenance for peak performance. Get the Right System, the First Time Don’t risk investing in the wrong HVAC setup. Let the experts at Arco Heating & Cooling guide you toward a system that fits your home, budget, and comfort goals perfectly. As a trusted heating and cooling contractor based in St. Charles, MO , we proudly serve the entire St. Louis metropolitan area , including both Missouri and Illinois. Call ARCO Heating & Cooling today at (636) 389-6471 to schedule your HVAC consultation and make the smart choice for your home!
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