How to Quiet a Noisy Air Conditioner

A noisy air conditioner can be a significant disturbance, especially during the summer heat when you need it most. The constant rattling noise or loud hum can disrupt your peace and quiet.

Fortunately, there are ways to reduce the noise levels of your air conditioning unit.

This article will guide you through several methods to quiet a noisy air conditioner, discuss what causes excessive noise, and when it might be time to call in a professional for regular maintenance.

7 Ways to Make Your Noisy Air Conditioner Quieter

  1. Regular Maintenance: Regular maintenance of your air conditioner can prevent many common AC noises. This includes cleaning or replacing the air filter, checking the fan motor, and ensuring the condenser unit is functioning correctly.
  2. Sound Blanket: Sound blankets or compressor blankets can be used to reduce the noise produced by your air conditioning unit. These blankets are designed to absorb sound and can be wrapped around the compressor.
  3. Sound Barriers: Sound barriers such as fence boards can be installed around the air conditioner to block noise.
  4. Check Air Ducts: Excessive noise can sometimes be due to issues with the air ducts. Ensure they are properly insulated and free of any obstructions.
  5. Replace Old Units: Older air conditioners tend to be louder. If your unit is old and making a lot of noise, it might be time to consider a replacement.
  6. Proper Installation: Ensure your air conditioner is properly installed. An improperly installed unit can lead to excess noise.
  7. Size Matters: Make sure your air conditioner is the right size for the square footage of your home. An oversized unit can create more noise.

What Causes an Air Conditioner to Be Loud?

Several factors can cause a loud air conditioner. These include a dirty or clogged air filter, issues with the fan motor, problems with the condenser unit, or simply the age of the unit. Regular maintenance can help identify and fix these issues before they lead to excessive noise.

Do Loud Air Conditioners Need to be Serviced?

Yes, if your air conditioner is making loud or unusual noises, it’s a good idea to have it serviced. Excessive noise can be a sign of a more serious issue that needs to be addressed.

How to Reduce AC Noise in an Apartment?

Reducing AC noise in an apartment can be a bit more challenging due to space constraints. However, using a sound blanket, ensuring the unit is properly installed, and regular maintenance can help reduce noise levels.

Why is My New AC So Loud Inside My House?

If your new AC is loud, it could be due to improper installation or the unit being too large for the square footage of your home. It’s best to consult with a professional to determine the cause and find a solution.

How to Quiet a Noisy Window Air Conditioner?

Quieting a noisy window air conditioner can be achieved by ensuring the unit is properly installed and secure, using a sound blanket, and performing regular maintenance.


A noisy air conditioner doesn’t have to disrupt your peace and quiet. By following these tips and understanding what causes excessive noise, you can enjoy a quieter and more comfortable environment in your home.

Remember, regular maintenance is key to keeping your air conditioner running smoothly and quietly. If the noise persists, don’t hesitate to call in a professional to ensure your unit is functioning correctly.

About Roy Cohen

Roy Cohen has a burning passion for heating, cooling, and ventilation. He aims to help you save money on expensive repairs and bring you the best HVAC products. He has years of experience behind him in HVAC repair and garage maintenance.

You can find Roy at his LinkedIn or his email: [email protected]

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