Prep Your AC for Summer: Essential Spring Maintenance Tips

A trusted HVAC professional should perform your cooling system tune-up every spring.
May 8, 2025

As the seasons shift and temperatures start to warm, your heating needs begin to fade—only to be replaced by the need for cooling. Spring is the perfect time to tune-up your HVAC system for the warmer months ahead. Regular maintenance not only extends your system’s lifespan but also improves energy efficiency and helps prevent unexpected (and expensive) breakdowns.

But this spring, you can go beyond just maintaining your system—you can transform your home’s comfort for the better. Whether you're sticking with the basics or ready for an upgrade, here’s everything you need to know to stay on top of your HVAC system this season.

1. Refresh or Upgrade Filters

Your air filter may seem like a small piece of your HVAC system, but it plays a crucial role in both indoor air quality and system efficiency. Filters trap dust, debris, and allergens that would otherwise clog your ductwork and reduce airflow. A dirty or blocked filter forces your system to work harder, wasting energy and raising your bills.

Spring is an ideal time to inspect your filter. Filters with higher MERV ratings trap more particles but usually require more frequent changes (typically every 1–3 months). Make sure you are using the right type for your system and lifestyle, especially as allergens ramp up.

2. Test Your AC System

Don’t wait for the first heat wave to discover your AC isn’t working. Test your system early in the season to catch any issues before the temperatures rise. Turn on your AC and listen for strange sounds like grinding or hissing. Make sure cool air is flowing evenly from all vents.

This early check gives you time to schedule repairs before your system is under pressure—and HVAC schedules are packed.

3. Schedule a Spring Tune-up with a Professional

Even if your system seems like it's operating well, regular maintenance by a professional should never be skipped. Only certified HVAC technicians should fully inspect, tune, and clean your system to prevent breakdowns, improve efficiency, and extend its lifespan.

A thorough spring tune-up typically includes:

  • Checking refrigerant levels
  • Testing safety controls
  • Inspecting electrical connections
  • Cleaning evaporator coils
  • Lubricating moving parts

This simple appointment can save you money and stress all season long.

4. Don’t Forget About Ducts and Vents

Ducts and vents are often overlooked—but they make a big impact. Dust can build up over the winter, furniture might shift to block airflow, or leaks could form unnoticed. Poorly maintained ducts can lead to major energy loss.

Check that vents are clear, clean any visible dust, and inspect ductwork for signs of damage. Sealing small leaks now can prevent wasted energy when cooling costs peak.

5. Check Your Thermostat

Still using a manual thermostat—or an outdated digital one? Upgrading to a smart thermostat is one of the simplest ways to increase efficiency and comfort. These systems learn your patterns, adjust automatically, and can be controlled from your smartphone.

If you already have a programmable or smart thermostat, now is a great time to adjust your settings for spring and summer routines. Small updates can lead to big savings.

6. Clean Around Your Outdoor Condenser Unit

While you're handling spring landscaping, don’t forget your outdoor condenser. Clear away leaves, branches, and other debris. There should be at least two feet of space around the unit for optimal airflow. Gently hose off dirt or dust buildup on the unit itself to keep it operating efficiently.

7. Assess Whole-Home Energy Efficiency

There are many ways efficiency can be reduced that don't directly involve your HVAC system. Drafty windows, poor insulation, and other home inefficiencies can strain your system and waste energy. Consider scheduling an energy auditto pinpoint where you are losing efficiency. From sealing gaps to upgrading your ventilation motor, these insights can help you cut long-term costs—and increase comfort.

If you have questions or want to explore your options, contact our customer service team at (978) 750-8282 or office@preferredairinc.com. We're happy to help you find the best solution for your home or business.

Preferred Air has been offering trusted service for 34 years. We'd love to have you join our community by scheduling a service or a complimentary professional system evaluation and estimate for upgrades or replacements of your current system with our factory-trained expert technicians.

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