Seasonal HVAC Maintenance Checklist: Keep Your System Running Year-Round

Your HVAC system works hard to keep your home comfortable through Houston’s wild weather — from scorching summers to chilly winter fronts. Without regular maintenance, though, your system can lose efficiency, break down unexpectedly, or shorten its lifespan.

Following a seasonal HVAC maintenance checklist helps prevent costly repairs, improve energy efficiency, and keep your system running smoothly year-round.

Spring HVAC Maintenance (Before Cooling Season)

As temperatures start to rise, it’s time to prep your air conditioning system for heavy use.

✅ Replace or Clean Air Filters: Improve airflow and keep your system running efficiently.

✅ Test and Program Your Thermostat: Update settings for cooling season.

✅ Flush the Condensate Drain Line: Use a mix of vinegar and water to prevent clogs and algae buildup.

✅ Inspect and Clean Air Vents & Registers: Remove dust to maintain proper airflow.

✅ Clear Debris Around the Outdoor Unit: Keep at least two feet of clearance around the condenser.

✅ Inspect the Ductwork: Check for leaks, mold, or blockages that affect airflow.

✅ Check Refrigerant Levels: Low refrigerant can indicate a leak and reduce cooling efficiency.

✅ Schedule a Professional HVAC Tune-Up: A certified technician can inspect coils, test refrigerant, and optimize performance.

Check refrigerant levels in the spring!

Summer HVAC Maintenance (Peak Cooling Season)

Houston summers are no joke — and your A/C works overtime to keep up.

✅ Check Filters Monthly: Replace or clean as needed to prevent airflow restrictions.

✅ Keep Vents Clear: Make sure furniture, rugs, or curtains don’t block airflow.

✅ Inspect the Outdoor Unit: Clear away grass clippings, leaves, and debris.

✅ Listen for Odd Noises: Clicking, rattling, or whistling sounds may indicate loose parts or motor issues.

✅ Use Ceiling Fans: Circulate cool air to help your system work more efficiently.

✅ Monitor Cooling Performance: Uneven temperatures or weak airflow can signal duct leaks or low refrigerant.

Fall HVAC Maintenance (Before Heating Season)

When the air finally cools, it’s time to switch gears and prep your furnace.

✅ Replace or Clean Air Filters: Fresh filters keep your air clean and your system efficient.

✅ Adjust Thermostat Settings: Lower temps for energy savings and comfort.

✅ Inspect the Heat Exchanger: Look for cracks that can cause dangerous carbon monoxide leaks.

✅ Check the Pilot Light or Ignition System: Make sure your furnace starts safely and runs smoothly.

✅ Clean and Inspect Vents & Registers: Clear dust and debris for balanced heating.

✅ Test Carbon Monoxide Detectors: Replace batteries and ensure they’re functioning properly.

✅ Schedule a Professional Furnace Tune-Up: A licensed tech can test safety controls, inspect components, and verify efficiency.

Winter HVAC Maintenance (Peak Heating Season)

Even short Texas cold snaps can strain your system. Keep it in top shape with these quick checks:

✅ Monitor Filters Monthly: Clogged filters reduce airflow and efficiency.

✅ Check for Blocked Vents: Make sure furniture or drapes aren’t covering heat registers.

✅ Listen for Unusual Noises: Rattling, whistling, or banging may signal loose parts or duct issues.

✅ Inspect for Uneven Heating: Cold spots might mean thermostat or ductwork problems.

✅ Keep Outdoor Units Clear (for Heat Pumps): Remove debris, snow, or ice buildup.

✅ Maintain Proper Humidity Levels: Use a humidifier if needed to reduce dry air.

Year-Round HVAC Maintenance Tip

Schedule Professional Maintenance Twice a Year — once in the spring and once in the fall. These tune-ups help prevent unexpected breakdowns, maintain efficiency, and extend your system’s lifespan.

Why Regular HVAC Maintenance Matters

A well-maintained system doesn’t just perform better — it costs less to run. Routine maintenance helps you:

• Reduce energy bills

• Prevent costly repairs

• Extend equipment life

• Improve indoor air quality

• Keep your home comfortable all year long

Keep Your Houston Home Comfortable Year-Round

Whether it’s summer heat or winter chill, your HVAC system deserves year-round care.

Final Thoughts

At Velocity Air A/C & Heating, if you are having trouble with your HVAC system, our team is here to help. Whether you need routine maintenance, quick repairs, or a full system replacement, we will keep your HVAC running efficiently and safely, so your home stays comfortable no matter the Texas weather. We provide expert Houston HVAC repair services, Houston HVAC installation services, and Houston HVAC preventive maintenance to keep your system running smoothly and efficiently all season long. Velocity Air A/C & Heating is proud to provide Houston HVAC services, including maintenance, emergency repair, and installation, to the Greater Houston Area.

– Your friends at Velocity Air A/C and Heating