The Ultimate Guide to HVAC Maintenance: What to Do Each Season

Your HVAC system works hard year-round to keep your home comfortable—cool in the summer, warm in the winter, and breathable all year long. But just like a car, it needs regular maintenance to perform its best, avoid costly repairs, and maximize lifespan.

In this ultimate seasonal guide, we’ll walk you through exactly what you should be doing each season to keep your HVAC system in top shape.

Spring: Prepare for the Cooling Season

Spring is the perfect time to get your system ready for the heat ahead.

Checklist:

• ✅ Change air filters: A clean filter improves airflow and energy efficiency.

  
  
  
  

• ✅ Clean around outdoor units: Remove leaves, debris, and trim plants around the AC condenser.

  
  
  
  

• ✅ Schedule an AC tune-up: A professional inspection can catch issues before peak usage.

  
  
  
  

• ✅ Check thermostat settings: Recalibrate or upgrade to a smart thermostat.

  
  
  
  

• ✅ Inspect ductwork for leaks: Leaky ducts can waste up to 30% of cooling energy.

  
  
  
  

 Summer: Keep Things Running Smoothly

During summer, your system is working overtime—this is when small issues can turn into big problems.

Checklist:

• ✅ Monitor performance: If it’s struggling to cool, don’t wait—call a pro.

  
  
  
  

• ✅ Keep vents clear: Make sure furniture isn’t blocking airflow.

  
  
  
  

• ✅ Inspect refrigerant lines: Look for ice buildup or damage.

  
  
  
  

• ✅ Flush the condensate drain line: A clogged drain can lead to moisture issues.

  
  
  
  

• ✅ Be alert for weird sounds or smells: These are early signs of trouble.

  
  
  
  

 Fall: Prep for the Heating Season

Once the heat dies down, it’s time to shift focus to heating.

Checklist:

• ✅ Replace or clean filters again: Especially if summer was smoky or dusty.

  
  
  
  

• ✅ Schedule a furnace tune-up: Ensure safe and efficient operation.

  
  
  
  

• ✅ Test carbon monoxide detectors: Especially with gas heating systems.

  
  
  
  

• ✅ Clean vents and registers: Dust and allergens can build up.

  
  
  
  

• ✅ Inspect insulation: Proper insulation eases your system’s load.

  
  
  
  

 Winter: Keep Warm, Stay Safe

Even in California’s milder climate, your heating system works hard during the cooler months.

Checklist:

• ✅ Monitor energy bills: A sudden spike could mean a problem.

  
  
  
  

• ✅ Keep outdoor vents clear: Make sure nothing is blocking exhaust.

  
  
  
  

• ✅ Listen for unusual furnace noises: Clicking, banging, or whining could signal issues.

  
  
  
  

• ✅ Use ceiling fans wisely: Reverse them to circulate warm air downward.

  
  
  
  

• ✅ Check for drafts: Fixing leaks in windows or doors helps retain heat.

  
  
  
  

Bonus Tip: Set Up a Yearly HVAC Maintenance Plan

Instead of remembering these tasks every season, let us handle it for you. Our annual HVAC maintenance planincludes two seasonal tune-ups, priority service, and exclusive discounts—giving you peace of mind all year round.

Staying ahead of seasonal HVAC maintenance is the best way to protect your investment, keep your home comfortable, and reduce your energy bills. Whether it’s a quick filter change or a professional tune-up, every small step counts.

Need help with seasonal maintenance? Contact us today and stay ahead of the weather.