How to Tell If Your Furnace Needs Cleaning

There are a few clear warning signs that your furnace may be due for a cleaning or professional inspection:

• Strange or loud noises: If your furnace starts making rattling, humming, or banging sounds, that’s often a sign of buildup or stress on internal components.

• Weak airflow: When you notice less air coming through vents — especially in bedrooms or distant rooms — your furnace filter or internal components may be clogged with dust.

• Uneven heating or discomfort: If some areas of your home feel colder than others, airflow restrictions or dirty components could be the cause.

• It’s been a year or more since your last inspection: Even if your furnace seems fine, time alone is reason enough to schedule maintenance. Every manufacturer recommends annual professional servicing, and in many cases, it’s a condition of the warranty.

Every furnace manufacturer includes annual maintenance in their warranty requirements. That means skipping your yearly inspection can actually void your warranty coverage. But beyond that, annual cleaning and inspection ensure that your system:

• • Operates safely without gas leaks or carbon monoxide risks
  • Runs efficiently, reducing monthly heating costs
  • Extends the lifespan of critical components
  • Prevents mid-winter breakdowns when your system is under the most stress

Since winter is when furnaces experience the heaviest wear and tear, it’s best to schedule maintenance in the fall, before the cold arrives.

When an HVAC technician services your furnace, they don’t just vacuum dust. They perform a full inspection to make sure every part is working correctly. This typically includes:

• • Checking burners and ignition systems
  • Cleaning the blower, filters, and air intakes
  • Testing safety controls and thermostats
  • Inspecting wiring and connections
  • Ensuring the heat exchanger and venting systems are safe and clear

This detailed cleaning and tune-up keeps your system efficient, quiet, and reliable all winter long.

If your furnace is making noise, airflow feels weak, or it’s simply been a year since your last inspection, it’s time for a professional cleaning. Regular maintenance not only keeps your home warm and comfortable but also protects your investment — and your warranty.

Get your furnace checked before winter hits, and enjoy peace of mind knowing your system is ready for Calgary’s coldest months.