How Often Should You Service Your HVAC System?

If you’re like most homeowners, your HVAC system probably isn’t something you think about very often – at least not until something goes wrong. But just like your car needs regular oil changes, your home’s heating and cooling system requires routine maintenance to keep running efficiently and reliably.

With over 30 years of experience, we’ve seen firsthand what happens when homeowners neglect regular HVAC maintenance. The good news? A little preventative care goes a long way in avoiding costly repairs and ensuring your family stays comfortable year-round.

So, let’s address a common question from many St. Louis homeowners: “How often should I service my HVAC system?”

The Ideal HVAC Maintenance Schedule

The golden rule for most residential HVAC systems is to schedule professional maintenance twice a year. This bi-annual approach ensures your system is ready to perform when you need it most.

Some homeowners consider skipping scheduled maintenance visits when their system appears to be working properly. While saving money in the short term might seem appealing, this approach often leads to higher costs over time. HVAC problems typically develop gradually and can go undetected until they cause significant issues, leading to expensive repairs or premature system failure.

Why Regular HVAC Maintenance Matters

Regular HVAC maintenance is comparable to routine car care. No one would drive their vehicle for years without changing the oil, replacing filters, or checking fluid levels. Yet an HVAC system actually works harder than most car engines, operating for thousands of hours each year to maintain comfortable temperatures in the home.

What’s Included in Professional HVAC Maintenance?

Professional HVAC service visits involve comprehensive maintenance procedures beyond basic DIY tasks. While changing filters regularly is valuable preventive care that homeowners can handle, experienced technicians perform a thorough system evaluation that addresses numerous components and potential issues.

During a typical HVAC maintenance visit, the service typically includes:

• Thoroughly clean all components
• Check and adjust refrigerant levels
• Inspect and tighten electrical connections
• Lubricate all moving parts
• Calibrate thermostat and review settings
• Clean condensate drain to prevent water damage
• Check and adjust blower components
• Verify system controls are operating correctly
• Conduct a comprehensive safety check

This isn’t a quick once-over – it’s a detailed examination of your system to ensure everything works properly and efficiently.

Monthly Maintenance You Can Do Yourself

While professional maintenance is essential, there are a few simple tasks you, as a homeowner, can perform between service visits to keep your system running smoothly.

These simple steps take just a few minutes each month but can significantly improve your system’s efficiency and help prevent problems between professional service visits.

Warning Signs Your HVAC System Needs Immediate Attention

While regular maintenance helps prevent most problems, there are times when your system may need attention between scheduled visits. As a homeowner, it’s essential to recognize these warning signs:

Don’t wait for your next scheduled maintenance if you notice any of these warning signs:

• Unusual noises (grinding, squealing, rattling)
• Unpleasant odors when system runs
• Uneven heating or cooling in your home
• Sudden increase in energy bills
• System repeatedly turning on and off
• Poor airflow from vents

If you notice any of these issues, it’s best to call a professional immediately. Addressing problems early can prevent more extensive damage and costly repairs.

Frequently Asked Questions About HVAC Maintenance