HVAC Coil Cleaning 101: How to Extend Coil Life With Simple Maintenance

HVAC Coil Cleaning 101: How to Extend Coil Life With Simple Maintenance

It’s no secret: clean coils work better.

Whether you’re running HVAC or refrigeration systems, routine coil maintenance helps prevent:

  • Performance drops
  • Icing
  • Energy waste
  • Early coil failure

But what does proper cleaning actually involve? And how can building staff support it between service visits?

Here’s a straightforward guide that contractors can share with their clients — from KCL Systems.


🧼 Why Coil Cleaning Matters

When coils get dirty, several things happen:

  • Airflow gets blocked
  • Heat transfer becomes inefficient
  • Moisture builds up (hello, ice!)
  • Compressors overwork
  • Utility bills climb

A clean coil = a cool, efficient system that lasts longer.


🗓️ Basic Monthly Tasks for Building Staff

Not a technician? No problem. Your team can still help keep coils running strong.

Check for visible dust or debris
Keep the surrounding area clean and clear
Report inconsistent temperatures or airflow
Log any strange noises or icing around units
Ensure filters are replaced on schedule


🚫 What Not to Do

  • Don’t spray coils with bleach, ammonia, or acidic cleaners
  • Don’t power-wash fins — they’ll bend
  • Don’t ignore standing water or rust spots

🧰 What Contractors Handle

Your service tech should:

  • Deep clean with coil-safe cleaners
  • Straighten fins and remove grime
  • Flush drain pans and clear lines
  • Check refrigerant pressures and airflow

Bonus: During cleaning, they can spot early signs of coil degradation before it becomes an emergency.


Want to Make a Coil Last Longer?

Ask your contractor about:

  • Epoxy coatings (great for kitchens, pools, c-stores)
  • Wider fin spacing (less prone to clogging)
  • Custom-built replacement coils from KCL

For coil upgrades, drop-in replacements, or technical support:
Contact KCL