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Coil Cleaning: Signs You Need to Call a Professional

  • Published: Feb 27, 2025
  • 5 min read

SUMMARY: Proper HVAC maintenance, including routine inspections and coil cleaning, is essential for system efficiency, longevity, and consistent performance. Keeping the outdoor condenser unit clear of debris and ensuring clean coils can prevent costly repairs and improve energy efficiency. For expert coil cleaning and maintenance services in NYC, trust Air Ideal to keep your system running smoothly.

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HVAC systems play a vital role in keeping indoor spaces comfortable and functional, whether it’s the middle of a summer heatwave or a chilly winter day. However, your system’s efficiency and longevity hinge on one often-overlooked component — clean coils. Dirty coils can wreak havoc on your HVAC system, leading to costly repairs and inefficiencies that impact energy bills. 

When is it time to address this issue? This blog will walk you through the signs that your coils need cleaning, why professional assistance might be your best option, and how to prevent buildup in the first place. 

Understanding HVAC Coils 

coil cleaning

To understand why coil cleaning is so critical, it helps to grasp the basics of HVAC coils and their function. 

The Role of HVAC Coils 

HVAC systems have two primary types of coils — evaporator coils and condenser coils. The evaporator coil absorbs heat from the indoor air to cool your space, while the condenser coil releases that heat outside. Together, they enable your HVAC system to regulate temperature efficiently. 

Both types of coils are exposed to dirt, debris, and dust over time, which can interfere with their heat exchange capabilities. When coils become clogged with grime, your system works harder to maintain the desired temperature — leading to inefficiencies and eventual breakdowns

How Coils Work 

Think of coils as heat conduits. Any obstruction in the coils diminishes their ability to transfer heat, reducing overall system performance. That’s why keeping them clean is essential for maintaining efficient heating and cooling. 

CONDENSING FURNACES: WHAT DO I NEED TO KNOW?

Signs Your Coils Need Cleaning 

Dirty HVAC coils don’t just affect your system — they provide noticeable signs when something’s wrong. Here are three key indicators. 

1. Reduced Airflow 

If you’ve noticed weaker airflow coming from your vents, your coils may be to blame. Dirt buildup restricts airflow through the coils, making it harder for the system to circulate air effectively. This not only decreases comfort but can strain other components in your HVAC system, leading to more frequent breakdowns.

2. Higher Energy Bills 

Dirty coils force your HVAC system to work overtime, consuming more energy than necessary to achieve the same results. If your utility bills are suddenly spiking with no other explanation, dirty coils might be the culprit. By addressing the issue early, you’ll save money on energy costs and prevent further wear on your system. 

3. Poor Cooling or Heating Performance 

Dirty coils could also be hampering the system’s capacity to regulate temperature. You might find areas of your indoor space that aren’t maintaining the desired climate — and your coils could be at the root of the issue. 

Why Professional Cleaning Matters 

Professional HVAC technicians bring expertise, precision, and the right tools to the table. They not only clean your coils thoroughly but also inspect for other issues that may go unnoticed in a DIY cleaning session. 

Cost Comparison 

While DIY cleaning might seem economical upfront, professional services often pay for themselves in the long term by preserving system efficiency, reducing breakdown risks, and extending the life of your HVAC system. 

How Professionals Clean Coils 

Curious about what professional coil cleaning involves? Here’s an overview of the process. 

  1. Inspection – Technicians assess the level of dirt buildup and any signs of damage. 
  2. Specialized Tools – High-grade equipment and cleaning solutions are used to remove dirt and debris effectively. 
  3. Technique Matters – Careful handling ensures the delicate coils remain intact. 
  4. Additional Checks – Professionals often inspect other components like filters and refrigerant levels, providing a comprehensive cleanup. 

By entrusting professionals, you ensure a deep clean that restores your system’s peak performance without risking damage. 

HOW TO PREVENT YOUR OUTDOOR CONDENSERS FROM FREEZING

Maintenance Tips to Prevent Coil Build-Up 

Once your coils are clean, stay proactive to prevent issues from arising in the future. 

Regular Filter Changes 

Dirty air filters are a significant contributor to coil buildup. Replace them regularly to keep your HVAC system running smoothly — most experts recommend changing them every 1 to 3 months depending on usage. 

Schedule Professional Maintenance 

Routine maintenance checks by HVAC professionals are essential for long-term system health. Aim to schedule coil cleaning and overall system inspections annually or semi-annually

Keep Surrounding Areas Clean 

Ensure that the outdoor condenser unit stays free of leaves, dirt, and other debris. Clear at least two feet of space around the unit to promote proper airflow. 

Coil Cleaning with Air Ideal 

Neglecting coil cleaning can lead to costly repairs, underperformance, and even early system replacement. Regularly maintaining and cleaning your coils helps your HVAC system run efficiently, ensures consistent comfort, and extends its lifespan. 

If you’ve noticed signs of dirty coils — like reduced airflow or climbing energy bills — don’t delay. For NYC-based businesses, visit Air Ideal’s website and reach out to our professionals to get the problem solved quickly and effectively today!

COMMERCIAL HVAC INSTALLATION

Contact Air Ideal today to schedule an estimate for your business’s customized project.